Patch & vulnerability status
Thunderbird 159.0
Latest tracked version 159.0. Release status, tracked CVEs, and automated cross-platform patching for Thunderbird.
| Platform | Latest version | CVEs tracked | Last checked |
|---|---|---|---|
| Linux | 159.0 | 0 | 2026-10-28 |
| Mac | 159.0 | 0 | 2026-10-28 |
| Windows | 159.0 | 1676 | 2026-10-28 |
Known vulnerabilities (CVEs) in Thunderbird
Lavawall tracks 1676 published CVEs affecting Thunderbird, and deploys the versions that fix them automatically across your fleet.
| CVE | Published | Severity | Details | Vector |
|---|---|---|---|---|
| CVE-2026-96869 | 2026-09-29 13:17:54 | MEDIUM (4) | Information disclosure in the Networking component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, and Firefox ESR 140.17. | NETWORK |
| CVE-2026-8975 | 2026-05-19 14:16:54 | HIGH (9) | Memory safety bugs present in Thunderbird 140.10 and Thunderbird 150. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 151, Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11. | NETWORK |
| CVE-2026-8974 | 2026-05-19 14:16:54 | HIGH (9) | Memory safety bugs present in Thunderbird 140.10 and Thunderbird 150. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11. | NETWORK |
| CVE-2026-8973 | 2026-05-19 14:16:54 | HIGH (9) | Memory safety bugs present in Thunderbird 150. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 151 and Thunderbird 151. | NETWORK |
| CVE-2026-8972 | 2026-05-19 14:16:54 | HIGH (9) | Privilege escalation in the WebRTC: Audio/Video component. This vulnerability was fixed in Firefox 151 and Thunderbird 151. | NETWORK |
| CVE-2026-8971 | 2026-05-19 14:16:54 | MEDIUM (7) | Same-origin policy bypass in the Networking: JAR component. This vulnerability was fixed in Firefox 151 and Thunderbird 151. | NETWORK |
| CVE-2026-8970 | 2026-05-19 14:16:54 | HIGH (9) | Privilege escalation in the Security component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11. | NETWORK |
| CVE-2026-8969 | 2026-05-19 14:16:53 | HIGH (8) | Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 151 and Thunderbird 151. | NETWORK |
| CVE-2026-8968 | 2026-05-19 14:16:53 | HIGH (8) | Denial-of-service due to invalid pointer in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11. | NETWORK |
| CVE-2026-8967 | 2026-05-19 14:16:53 | HIGH (8) | Information disclosure in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 151 and Thunderbird 151. | NETWORK |
| CVE-2026-8966 | 2026-05-19 14:16:53 | HIGH (8) | Information disclosure in the IP Protection component. This vulnerability was fixed in Firefox 151 and Thunderbird 151. | NETWORK |
| CVE-2026-8965 | 2026-05-19 14:16:53 | HIGH (8) | Information disclosure in the DOM: Security component. This vulnerability was fixed in Firefox 151 and Thunderbird 151. | NETWORK |
| CVE-2026-8964 | 2026-05-19 14:16:53 | HIGH (8) | Spoofing issue in the Popup Blocker component. This vulnerability was fixed in Firefox 151 and Thunderbird 151. | NETWORK |
| CVE-2026-8963 | 2026-05-19 14:16:53 | HIGH (8) | Spoofing issue in the Web Speech component. This vulnerability was fixed in Firefox 151 and Thunderbird 151. | NETWORK |
| CVE-2026-8962 | 2026-05-19 14:16:53 | HIGH (8) | Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11. | NETWORK |
| CVE-2026-8961 | 2026-05-19 14:16:52 | MEDIUM (7) | Spoofing issue in the Form Autofill component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11. | NETWORK |
| CVE-2026-8960 | 2026-05-19 14:16:52 | HIGH (8) | Spoofing issue in WebExtensions. This vulnerability was fixed in Firefox 151 and Thunderbird 151. | NETWORK |
| CVE-2026-8959 | 2026-05-19 14:16:52 | CRITICAL (10) | Sandbox escape due to incorrect boundary conditions in the Widget: Win32 component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11. | NETWORK |
| CVE-2026-8958 | 2026-05-19 14:16:52 | HIGH (9) | Information disclosure, sandbox escape in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11. | NETWORK |
| CVE-2026-8957 | 2026-05-19 14:16:52 | HIGH (9) | Privilege escalation in the Enterprise Policies component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11. | NETWORK |
| CVE-2026-8956 | 2026-05-19 14:16:52 | CRITICAL (10) | Integer overflow in the Networking: JAR component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11. | NETWORK |
| CVE-2026-8955 | 2026-05-19 14:16:52 | HIGH (9) | Privilege escalation in the DOM: Workers component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11. | NETWORK |
| CVE-2026-8954 | 2026-05-19 14:16:52 | HIGH (8) | Incorrect boundary conditions, integer overflow in the Audio/Video component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11. | NETWORK |
| CVE-2026-8953 | 2026-05-19 14:16:52 | CRITICAL (10) | Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox 151, Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11. | NETWORK |
| CVE-2026-8952 | 2026-05-19 14:16:51 | HIGH (9) | Privilege escalation in the Application Update component. This vulnerability was fixed in Firefox 151 and Thunderbird 151. | NETWORK |
| CVE-2026-8950 | 2026-05-19 14:16:51 | CRITICAL (9) | Same-origin policy bypass in the Networking: HTTP component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11. | NETWORK |
| CVE-2026-8949 | 2026-05-19 14:16:51 | HIGH (8) | Integer overflow in the Widget: Win32 component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11. | NETWORK |
| CVE-2026-8948 | 2026-05-19 14:16:51 | CRITICAL (9) | Same-origin policy bypass in the DOM: Networking component. This vulnerability was fixed in Firefox 151 and Thunderbird 151. | NETWORK |
| CVE-2026-8947 | 2026-05-19 14:16:51 | HIGH (7) | Use-after-free in the DOM: Bindings (WebIDL) component. This vulnerability was fixed in Firefox 151, Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11. | NETWORK |
| CVE-2026-8946 | 2026-05-19 14:16:51 | HIGH (8) | Incorrect boundary conditions in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 151, Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11. | NETWORK |
| CVE-2026-8094 | 2026-05-07 13:16:14 | CRITICAL (10) | Other issue in the WebRTC component. This vulnerability was fixed in Firefox ESR 140.10.2 and Thunderbird 140.10.2. | NETWORK |
| CVE-2026-8093 | 2026-05-07 13:16:14 | HIGH (8) | Memory safety bugs present in Thunderbird 150.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 150.0.2 and Thunderbird 150.0.2. | NETWORK |
| CVE-2026-8092 | 2026-05-07 13:16:14 | HIGH (8) | Memory safety bugs present in Thunderbird ESR 140.10.1 and Thunderbird 150.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 150.0.2, Firefox ESR 140.10.2, Firefox ESR 115.35.2, Thunderbird 150.0.2, and Thunderbird 140.10.2. | NETWORK |
| CVE-2026-8091 | 2026-05-07 13:16:14 | CRITICAL (10) | Incorrect boundary conditions in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 150, Thunderbird 150, Firefox ESR 140.10.1, Thunderbird 140.10.1, and Firefox ESR 115.35.2. | NETWORK |
| CVE-2026-8090 | 2026-05-07 13:16:14 | HIGH (7) | Use-after-free in the DOM: Networking component. This vulnerability was fixed in Firefox 150.0.2, Firefox ESR 140.10.2, Firefox ESR 115.35.2, Thunderbird 150.0.2, and Thunderbird 140.10.2. | NETWORK |
| CVE-2026-75874 | 2026-08-18 13:17:44 | CRITICAL (10) | Sandbox escape in the Remote Settings Client component. This vulnerability was fixed in Firefox 154 and Thunderbird 154. | NETWORK |
| CVE-2026-74990 | 2026-08-18 13:17:41 | CRITICAL (10) | Internally found bugs present in Firefox ESR 115.38, Firefox ESR 140.13, Firefox ESR 153.0 and Firefox 153. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1. | NETWORK |
| CVE-2026-74989 | 2026-08-18 13:17:41 | CRITICAL (10) | Internally found bugs present in Firefox 153. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. This vulnerability was fixed in Firefox 154 and Thunderbird 154. | NETWORK |
| CVE-2026-74988 | 2026-08-18 13:17:41 | CRITICAL (10) | Internally found bugs present in Firefox ESR 153.0 and Firefox 153. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.1. | NETWORK |
| CVE-2026-74987 | 2026-08-18 13:17:41 | CRITICAL (10) | Internally found bugs present in Firefox ESR 140.13, Firefox ESR 153.0 and Firefox 153. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1. | NETWORK |
| CVE-2026-74986 | 2026-08-18 13:17:40 | CRITICAL (9) | Site isolation issue in the CSS Parsing and Computation component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.1. | NETWORK |
| CVE-2026-74985 | 2026-08-18 13:17:40 | CRITICAL (10) | Privilege escalation in the Enterprise Policies component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.1. | NETWORK |
| CVE-2026-74984 | 2026-08-18 13:17:39 | MEDIUM (7) | Race condition in the JavaScript Engine component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.1. | NETWORK |
| CVE-2026-74983 | 2026-08-18 13:17:39 | HIGH (8) | Mitigation bypass in the Data Loss Prevention component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1. | NETWORK |
| CVE-2026-74982 | 2026-08-18 13:17:37 | HIGH (8) | Denial-of-service in the Widget component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.1. | NETWORK |
| CVE-2026-74981 | 2026-08-18 13:17:37 | HIGH (8) | Site isolation issue in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.1. | NETWORK |
| CVE-2026-74979 | 2026-08-18 13:17:37 | CRITICAL (10) | Mitigation bypass in the Add-ons Manager component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.1. | NETWORK |
| CVE-2026-74978 | 2026-08-18 13:17:36 | HIGH (8) | Clickjacking issue in the Widget component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.1. | NETWORK |
| CVE-2026-74977 | 2026-08-18 13:17:36 | HIGH (8) | Integer overflow in the Graphics component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.1. | NETWORK |
| CVE-2026-74976 | 2026-08-18 13:17:36 | MEDIUM (7) | JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1. | NETWORK |
| CVE-2026-74974 | 2026-08-18 13:17:35 | MEDIUM (5) | Same-origin policy bypass in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1. | NETWORK |
| CVE-2026-74973 | 2026-08-18 13:17:35 | MEDIUM (4) | Race condition, use-after-free in the Graphics component. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1. | NETWORK |
| CVE-2026-74972 | 2026-08-18 13:17:35 | MEDIUM (4) | Information disclosure in the DOM: Push Subscriptions component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1. | NETWORK |
| CVE-2026-74971 | 2026-08-18 13:17:35 | MEDIUM (4) | Information disclosure in the DOM: UI Events & Focus Handling component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1. | NETWORK |
| CVE-2026-74970 | 2026-08-18 13:17:34 | MEDIUM (5) | Site isolation issue in the Graphics component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.1. | NETWORK |
| CVE-2026-74969 | 2026-08-18 13:17:34 | HIGH (9) | Use-after-free in the Layout: Text and Fonts component. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1. | NETWORK |
| CVE-2026-74968 | 2026-08-18 13:17:34 | MEDIUM (5) | Site isolation issue in the Graphics: WebRender component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.1. | NETWORK |
| CVE-2026-74967 | 2026-08-18 13:17:34 | MEDIUM (5) | Same-origin policy bypass in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1. | NETWORK |
| CVE-2026-74966 | 2026-08-18 13:17:34 | HIGH (8) | Information disclosure in the Form Autofill component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.1. | NETWORK |
| CVE-2026-74965 | 2026-08-18 13:17:34 | HIGH (9) | Privilege escalation in the Shell Integration component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1. | NETWORK |
| CVE-2026-74964 | 2026-08-18 13:17:34 | CRITICAL (10) | Integer overflow in the Graphics component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1. | NETWORK |
| CVE-2026-74963 | 2026-08-18 13:17:34 | MEDIUM (5) | Same-origin policy bypass in the Networking: Cookies component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1. | NETWORK |
| CVE-2026-74962 | 2026-08-18 13:17:33 | HIGH (8) | Site isolation issue in the Networking: Cookies component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1. | NETWORK |
| CVE-2026-74960 | 2026-08-18 13:17:33 | HIGH (8) | Site isolation issue in the WebExtensions component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1. | NETWORK |
| CVE-2026-74959 | 2026-08-18 13:17:33 | CRITICAL (9) | Mitigation bypass in the Storage: Cache API component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1. | NETWORK |
| CVE-2026-74958 | 2026-08-18 13:17:33 | HIGH (8) | Information disclosure in the WebRTC component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.1. | NETWORK |
| CVE-2026-74957 | 2026-08-18 13:17:33 | HIGH (8) | Mitigation bypass in the Safe Browsing component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1. | NETWORK |
| CVE-2026-74956 | 2026-08-18 13:17:33 | CRITICAL (9) | Same-origin policy bypass in the DOM: Service Workers component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.1. | NETWORK |
| CVE-2026-74955 | 2026-08-18 13:17:32 | HIGH (9) | Privilege escalation in the Request Handling component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.1. | NETWORK |
| CVE-2026-74954 | 2026-08-18 13:17:32 | HIGH (8) | Information disclosure due to side-channel in the Storage: Cache API component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.1. | NETWORK |
| CVE-2026-74953 | 2026-08-18 13:17:32 | HIGH (9) | Privilege escalation in the Networking: Cookies component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1. | NETWORK |
| CVE-2026-74952 | 2026-08-18 13:17:32 | HIGH (9) | Privilege escalation in the Application Update component. This vulnerability was fixed in Firefox 154 and Thunderbird 154. | NETWORK |
| CVE-2026-74950 | 2026-08-18 13:17:32 | HIGH (9) | Privilege escalation in the Downloads API component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.1. | NETWORK |
| CVE-2026-74949 | 2026-08-18 13:17:32 | HIGH (9) | Use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1. | NETWORK |
| CVE-2026-74948 | 2026-08-18 13:17:32 | MEDIUM (7) | Information disclosure in the Graphics component. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1. | NETWORK |
| CVE-2026-74947 | 2026-08-18 13:17:31 | HIGH (9) | Privilege escalation due to invalid pointer in the Graphics component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.1. | NETWORK |
| CVE-2026-74946 | 2026-08-18 13:17:31 | HIGH (9) | Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1. | NETWORK |
| CVE-2026-74945 | 2026-08-18 13:17:31 | MEDIUM (7) | Information disclosure in the Graphics: Text component. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1. | NETWORK |
| CVE-2026-74944 | 2026-08-18 13:17:31 | CRITICAL (10) | Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1. | NETWORK |
| CVE-2026-74943 | 2026-08-18 13:17:31 | CRITICAL (10) | Use-after-free in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1. | NETWORK |
| CVE-2026-74942 | 2026-08-18 13:17:31 | HIGH (9) | Privilege escalation in the Remote Settings Client component. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1. | NETWORK |
| CVE-2026-74941 | 2026-08-18 13:17:31 | HIGH (9) | Privilege escalation in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1. | NETWORK |
| CVE-2026-74940 | 2026-08-18 13:17:30 | CRITICAL (10) | Use-after-free in the Graphics: Text component. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1. | NETWORK |
| CVE-2026-74939 | 2026-08-18 13:17:30 | HIGH (9) | Privilege escalation in the DOM: Navigation component. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1. | NETWORK |
| CVE-2026-74938 | 2026-08-18 13:17:30 | CRITICAL (9) | Mitigation bypass in the JavaScript: GC component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.1. | NETWORK |
| CVE-2026-74937 | 2026-08-18 13:17:30 | HIGH (9) | Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.1. | NETWORK |
| CVE-2026-74936 | 2026-08-18 13:17:30 | CRITICAL (10) | Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1. | NETWORK |
| CVE-2026-74935 | 2026-08-18 13:17:30 | HIGH (9) | Privilege escalation in the DOM: Networking component. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1. | NETWORK |
| CVE-2026-74934 | 2026-08-18 13:17:30 | HIGH (8) | Site isolation issue in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1. | NETWORK |
| CVE-2026-7324 | 2026-04-28 15:16:38 | HIGH (7) | Memory safety bugs present in Thunderbird 150.0.0. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 150.0.1 and Thunderbird 150.0.1. | NETWORK |
| CVE-2026-7323 | 2026-04-28 15:16:38 | HIGH (7) | Memory safety bugs present in Thunderbird ESR 140.10.0 and Thunderbird 150.0.0. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 150.0.1, Firefox ESR 140.10.1, Thunderbird 150.0.1, and Thunderbird 140.10.1. | NETWORK |
| CVE-2026-7322 | 2026-04-28 15:16:38 | HIGH (7) | Memory safety bugs present in Thunderbird ESR 140.10.0 and Thunderbird 150.0.0. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 150.0.1, Firefox ESR 140.10.1, Firefox ESR 115.35.1, Thunderbird 150.0.1, and Thunderbird 140.10.1. | NETWORK |
| CVE-2026-7321 | 2026-04-28 15:16:38 | CRITICAL (10) | Sandbox escape due to incorrect boundary conditions in the WebRTC: Networking component. This vulnerability was fixed in Firefox 150, Thunderbird 150, Firefox ESR 140.10.1, and Thunderbird 140.10.1. | NETWORK |
| CVE-2026-7320 | 2026-04-28 15:16:37 | HIGH (8) | Information disclosure due to incorrect boundary conditions in the Audio/Video component. This vulnerability was fixed in Firefox 150.0.1, Firefox ESR 140.10.1, Firefox ESR 115.35.1, Thunderbird 150.0.1, and Thunderbird 140.10.1. | NETWORK |
| CVE-2026-6786 | 2026-04-26 19:53:40 | HIGH (8) | Memory safety bugs present in Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149 and Thunderbird 149. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | NETWORK |
| CVE-2026-6785 | 2026-04-26 19:53:39 | HIGH (8) | Memory safety bugs present in Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149 and Thunderbird 149. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | NETWORK |
| CVE-2026-6784 | 2026-04-21 13:16:24 | HIGH (8) | Memory safety bugs present in Firefox 149 and Thunderbird 149. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 150 and Thunderbird 150. | NETWORK |
| CVE-2026-6783 | 2026-04-21 13:16:24 | MEDIUM (5) | Incorrect boundary conditions, integer overflow in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 150 and Thunderbird 150. | NETWORK |
| CVE-2026-6782 | 2026-04-21 13:16:24 | HIGH (8) | Information disclosure in the IP Protection component. This vulnerability was fixed in Firefox 150 and Thunderbird 150. | NETWORK |
| CVE-2026-6781 | 2026-04-21 13:16:24 | HIGH (8) | Denial-of-service in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 150 and Thunderbird 150. | NETWORK |
| CVE-2026-6780 | 2026-04-21 13:16:24 | HIGH (8) | Denial-of-service in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 150 and Thunderbird 150. | NETWORK |
| CVE-2026-6779 | 2026-04-21 13:16:24 | MEDIUM (5) | Other issue in the JavaScript Engine component. This vulnerability was fixed in Firefox 150 and Thunderbird 150. | NETWORK |
| CVE-2026-6778 | 2026-04-21 13:16:24 | MEDIUM (5) | Invalid pointer in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 150 and Thunderbird 150. | NETWORK |
| CVE-2026-6777 | 2026-04-21 13:16:23 | MEDIUM (5) | Other issue in the Networking: DNS component. This vulnerability was fixed in Firefox 150 and Thunderbird 150. | NETWORK |
| CVE-2026-6776 | 2026-04-21 13:16:23 | HIGH (8) | Incorrect boundary conditions in the WebRTC: Networking component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | LOCAL |
| CVE-2026-6775 | 2026-04-21 13:16:23 | MEDIUM (5) | Incorrect boundary conditions in the WebRTC component. This vulnerability was fixed in Firefox 150 and Thunderbird 150. | NETWORK |
| CVE-2026-6774 | 2026-04-21 13:16:23 | MEDIUM (5) | Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 150 and Thunderbird 150. | NETWORK |
| CVE-2026-6773 | 2026-04-21 13:16:23 | HIGH (8) | Denial-of-service due to integer overflow in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 150 and Thunderbird 150. | NETWORK |
| CVE-2026-6772 | 2026-04-21 13:16:23 | HIGH (8) | Incorrect boundary conditions in the Libraries component in NSS. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | NETWORK |
| CVE-2026-6771 | 2026-04-21 13:16:23 | CRITICAL (10) | Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | NETWORK |
| CVE-2026-6770 | 2026-04-21 13:16:23 | MEDIUM (7) | Other issue in the Storage: IndexedDB component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | NETWORK |
| CVE-2026-6769 | 2026-04-21 13:16:23 | HIGH (9) | Privilege escalation in the Debugger component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | NETWORK |
| CVE-2026-6768 | 2026-04-21 13:16:23 | CRITICAL (10) | Mitigation bypass in the Networking: Cookies component. This vulnerability was fixed in Firefox 150 and Thunderbird 150. | NETWORK |
| CVE-2026-6767 | 2026-04-21 13:16:23 | MEDIUM (5) | Other issue in the Libraries component in NSS. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | NETWORK |
| CVE-2026-6766 | 2026-04-21 13:16:22 | HIGH (8) | Incorrect boundary conditions in the Libraries component in NSS. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | NETWORK |
| CVE-2026-6765 | 2026-04-21 13:16:22 | MEDIUM (5) | Information disclosure in the Form Autofill component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | NETWORK |
| CVE-2026-6764 | 2026-04-21 13:16:22 | MEDIUM (7) | Incorrect boundary conditions in the DOM: Device Interfaces component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | NETWORK |
| CVE-2026-6763 | 2026-04-21 13:16:22 | MEDIUM (7) | Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | NETWORK |
| CVE-2026-6762 | 2026-04-21 13:16:22 | MEDIUM (6) | Spoofing issue in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | NETWORK |
| CVE-2026-6761 | 2026-04-21 13:16:22 | HIGH (9) | Privilege escalation in the Networking component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | NETWORK |
| CVE-2026-6760 | 2026-04-21 13:16:22 | CRITICAL (10) | Mitigation bypass in the Networking: Cookies component. This vulnerability was fixed in Firefox 150 and Thunderbird 150. | NETWORK |
| CVE-2026-6759 | 2026-04-21 13:16:22 | HIGH (8) | Use-after-free in the Widget: Cocoa component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | NETWORK |
| CVE-2026-6758 | 2026-04-21 13:16:22 | HIGH (8) | Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 150 and Thunderbird 150. | NETWORK |
| CVE-2026-6757 | 2026-04-21 13:16:22 | MEDIUM (6) | Invalid pointer in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | NETWORK |
| CVE-2026-6755 | 2026-04-21 13:16:22 | MEDIUM (7) | Mitigation bypass in the DOM: postMessage component. This vulnerability was fixed in Firefox 150 and Thunderbird 150. | NETWORK |
| CVE-2026-6754 | 2026-04-21 13:16:21 | HIGH (8) | Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | NETWORK |
| CVE-2026-6753 | 2026-04-21 13:16:21 | HIGH (7) | Incorrect boundary conditions in the WebRTC component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | NETWORK |
| CVE-2026-6752 | 2026-04-21 13:16:21 | HIGH (7) | Incorrect boundary conditions in the WebRTC component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | NETWORK |
| CVE-2026-6751 | 2026-04-21 13:16:21 | HIGH (7) | Uninitialized memory in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | NETWORK |
| CVE-2026-6750 | 2026-04-21 13:16:21 | HIGH (9) | Privilege escalation in the Graphics: WebRender component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | NETWORK |
| CVE-2026-6749 | 2026-04-21 13:16:21 | HIGH (8) | Information disclosure due to uninitialized memory in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | NETWORK |
| CVE-2026-6748 | 2026-04-21 13:16:21 | CRITICAL (10) | Uninitialized memory in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | NETWORK |
| CVE-2026-6747 | 2026-04-21 13:16:21 | HIGH (8) | Use-after-free in the WebRTC component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | NETWORK |
| CVE-2026-6746 | 2026-04-21 13:16:21 | HIGH (8) | Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | NETWORK |
| CVE-2026-5735 | 2026-04-07 13:16:48 | CRITICAL (10) | Memory safety bugs present in Firefox 149.0.1 and Thunderbird 149.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 149.0.2 and Thunderbird 149.0.2. | NETWORK |
| CVE-2026-5734 | 2026-04-07 13:16:48 | CRITICAL (10) | Memory safety bugs present in Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 149.0.2, Firefox ESR 140.9.1, Thunderbird 149.0.2, and Thunderbird 140.9.1. | NETWORK |
| CVE-2026-5731 | 2026-04-07 13:16:47 | CRITICAL (10) | Memory safety bugs present in Firefox ESR 115.34.0, Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 149.0.2, Firefox ESR 115.34.1, Firefox ESR 140.9.1, Thunderbird 149.0.2, and Thunderbird 140.9.1. | NETWORK |
| CVE-2026-4729 | 2026-03-24 13:16:09 | CRITICAL (10) | Memory safety bugs present in Firefox 148 and Thunderbird 148. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 149 and Thunderbird 149. | NETWORK |
| CVE-2026-4728 | 2026-03-24 13:16:09 | MEDIUM (7) | Spoofing issue in the Privacy: Anti-Tracking component. This vulnerability was fixed in Firefox 149 and Thunderbird 149. | NETWORK |
| CVE-2026-4727 | 2026-03-24 13:16:09 | HIGH (8) | Denial-of-service in the Libraries component in NSS. This vulnerability was fixed in Firefox 149 and Thunderbird 149. | NETWORK |
| CVE-2026-4726 | 2026-03-24 13:16:08 | HIGH (8) | Denial-of-service in the XML component. This vulnerability was fixed in Firefox 149 and Thunderbird 149. | NETWORK |
| CVE-2026-4724 | 2026-03-24 13:16:08 | CRITICAL (9) | Undefined behavior in the Audio/Video component. This vulnerability was fixed in Firefox 149 and Thunderbird 149. | NETWORK |
| CVE-2026-4721 | 2026-03-24 13:16:08 | CRITICAL (10) | Memory safety bugs present in Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | NETWORK |
| CVE-2026-4720 | 2026-03-24 13:16:08 | CRITICAL (10) | Memory safety bugs present in Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | NETWORK |
| CVE-2026-4718 | 2026-03-24 13:16:08 | HIGH (8) | Undefined behavior in the WebRTC: Signaling component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | NETWORK |
| CVE-2026-4710 | 2026-03-24 13:16:07 | CRITICAL (10) | Incorrect boundary conditions in the Audio/Video component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | NETWORK |
| CVE-2026-4694 | 2026-03-24 13:16:05 | HIGH (8) | Incorrect boundary conditions, integer overflow in the Graphics component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | NETWORK |
| CVE-2026-4692 | 2026-03-24 13:16:05 | CRITICAL (10) | Sandbox escape in the Responsive Design Mode component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | NETWORK |
| CVE-2026-4689 | 2026-03-24 13:16:05 | CRITICAL (10) | Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | NETWORK |
| CVE-2026-2807 | 2026-02-24 14:16:29 | CRITICAL (10) | Memory safety bugs present in Firefox 147 and Thunderbird 147. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 148 and Thunderbird 148. | NETWORK |
| CVE-2026-2806 | 2026-02-24 14:16:29 | CRITICAL (9) | Uninitialized memory in the Graphics: Text component. This vulnerability was fixed in Firefox 148 and Thunderbird 148. | NETWORK |
| CVE-2026-2805 | 2026-02-24 14:16:29 | CRITICAL (10) | Invalid pointer in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 148 and Thunderbird 148. | NETWORK |
| CVE-2026-2804 | 2026-02-24 14:16:29 | MEDIUM (5) | Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 148 and Thunderbird 148. | NETWORK |
| CVE-2026-2803 | 2026-02-24 14:16:29 | HIGH (8) | Information disclosure, mitigation bypass in the Settings UI component. This vulnerability was fixed in Firefox 148 and Thunderbird 148. | NETWORK |
| CVE-2026-2802 | 2026-02-24 14:16:29 | MEDIUM (4) | Race condition in the JavaScript: GC component. This vulnerability was fixed in Firefox 148 and Thunderbird 148. | NETWORK |
| CVE-2026-2801 | 2026-02-24 14:16:29 | HIGH (8) | Incorrect boundary conditions in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 148 and Thunderbird 148. | NETWORK |
| CVE-2026-2800 | 2026-02-24 14:16:29 | CRITICAL (10) | Spoofing issue in the WebAuthn component in Firefox for Android. This vulnerability was fixed in Firefox 148 and Thunderbird 148. | NETWORK |
| CVE-2026-2799 | 2026-02-24 14:16:28 | CRITICAL (10) | Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 148 and Thunderbird 148. | NETWORK |
| CVE-2026-2798 | 2026-02-24 14:16:28 | HIGH (9) | Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 148 and Thunderbird 148. | NETWORK |
| CVE-2026-2797 | 2026-02-24 14:16:28 | CRITICAL (10) | Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 148 and Thunderbird 148. | NETWORK |
| CVE-2026-2796 | 2026-02-24 14:16:28 | CRITICAL (10) | JIT miscompilation in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 148 and Thunderbird 148. | NETWORK |
| CVE-2026-2795 | 2026-02-24 14:16:28 | CRITICAL (10) | Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 148 and Thunderbird 148. | NETWORK |
| CVE-2026-2793 | 2026-02-24 14:16:28 | CRITICAL (10) | Memory safety bugs present in Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147 and Thunderbird 147. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | NETWORK |
| CVE-2026-2792 | 2026-02-24 14:16:28 | CRITICAL (10) | Memory safety bugs present in Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147 and Thunderbird 147. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | NETWORK |
| CVE-2026-2791 | 2026-02-24 14:16:28 | CRITICAL (10) | Mitigation bypass in the Networking: Cache component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | NETWORK |
| CVE-2026-2790 | 2026-02-24 14:16:27 | CRITICAL (10) | Same-origin policy bypass in the Networking: JAR component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | NETWORK |
| CVE-2026-2789 | 2026-02-24 14:16:27 | CRITICAL (10) | Use-after-free in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | NETWORK |
| CVE-2026-2788 | 2026-02-24 14:16:27 | CRITICAL (10) | Incorrect boundary conditions in the Audio/Video: GMP component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | NETWORK |
| CVE-2026-2787 | 2026-02-24 14:16:27 | CRITICAL (10) | Use-after-free in the DOM: Window and Location component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | NETWORK |
| CVE-2026-2786 | 2026-02-24 14:16:27 | CRITICAL (10) | Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | NETWORK |
| CVE-2026-2785 | 2026-02-24 14:16:27 | CRITICAL (10) | Invalid pointer in the JavaScript Engine component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | NETWORK |
| CVE-2026-2784 | 2026-02-24 14:16:27 | CRITICAL (10) | Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | NETWORK |
| CVE-2026-2783 | 2026-02-24 14:16:27 | HIGH (8) | Information disclosure due to JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | NETWORK |
| CVE-2026-2782 | 2026-02-24 14:16:27 | CRITICAL (10) | Privilege escalation in the Netmonitor component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | NETWORK |
| CVE-2026-2781 | 2026-02-24 14:16:27 | CRITICAL (10) | Integer overflow in the Libraries component in NSS. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, Thunderbird 140.8, and Firefox ESR 115.35. | NETWORK |
| CVE-2026-2780 | 2026-02-24 14:16:26 | CRITICAL (10) | Privilege escalation in the Netmonitor component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | NETWORK |
| CVE-2026-2779 | 2026-02-24 14:16:26 | CRITICAL (10) | Incorrect boundary conditions in the Networking: JAR component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | NETWORK |
| CVE-2026-2778 | 2026-02-24 14:16:26 | CRITICAL (10) | Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | NETWORK |
| CVE-2026-2777 | 2026-02-24 14:16:26 | CRITICAL (10) | Privilege escalation in the Messaging System component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | NETWORK |
| CVE-2026-2776 | 2026-02-24 14:16:26 | CRITICAL (10) | Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | NETWORK |
| CVE-2026-2775 | 2026-02-24 14:16:26 | CRITICAL (10) | Mitigation bypass in the DOM: HTML Parser component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | NETWORK |
| CVE-2026-2774 | 2026-02-24 14:16:26 | CRITICAL (10) | Integer overflow in the Audio/Video component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | NETWORK |
| CVE-2026-2773 | 2026-02-24 14:16:26 | CRITICAL (10) | Incorrect boundary conditions in the Web Audio component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | NETWORK |
| CVE-2026-2772 | 2026-02-24 14:16:26 | CRITICAL (10) | Use-after-free in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | NETWORK |
| CVE-2026-2771 | 2026-02-24 14:16:25 | CRITICAL (10) | Undefined behavior in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | NETWORK |
| CVE-2026-2770 | 2026-02-24 14:16:25 | CRITICAL (10) | Use-after-free in the DOM: Bindings (WebIDL) component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | NETWORK |
| CVE-2026-2769 | 2026-02-24 14:16:25 | HIGH (9) | Use-after-free in the Storage: IndexedDB component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | NETWORK |
| CVE-2026-2768 | 2026-02-24 14:16:25 | CRITICAL (10) | Sandbox escape in the Storage: IndexedDB component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | NETWORK |
| CVE-2026-2767 | 2026-02-24 14:16:25 | CRITICAL (10) | Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | NETWORK |
| CVE-2026-2766 | 2026-02-24 14:16:25 | CRITICAL (10) | Use-after-free in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | NETWORK |
| CVE-2026-2765 | 2026-02-24 14:16:25 | CRITICAL (10) | Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | NETWORK |
| CVE-2026-2764 | 2026-02-24 14:16:25 | CRITICAL (10) | JIT miscompilation, use-after-free in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | NETWORK |
| CVE-2026-2763 | 2026-02-24 14:16:25 | CRITICAL (10) | Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | NETWORK |
| CVE-2026-2762 | 2026-02-24 14:16:24 | CRITICAL (10) | Integer overflow in the JavaScript: Standard Library component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | NETWORK |
| CVE-2026-2761 | 2026-02-24 14:16:24 | CRITICAL (10) | Sandbox escape in the Graphics: WebRender component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | NETWORK |
| CVE-2026-2760 | 2026-02-24 14:16:24 | CRITICAL (10) | Sandbox escape due to incorrect boundary conditions in the Graphics: WebRender component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | NETWORK |
| CVE-2026-2759 | 2026-02-24 14:16:24 | CRITICAL (10) | Incorrect boundary conditions in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | NETWORK |
| CVE-2026-2758 | 2026-02-24 14:16:24 | CRITICAL (10) | Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | NETWORK |
| CVE-2026-2757 | 2026-02-24 14:16:24 | CRITICAL (10) | Incorrect boundary conditions in the WebRTC: Audio/Video component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | NETWORK |
| CVE-2026-2447 | 2026-02-16 15:18:35 | HIGH (9) | Heap buffer overflow in libvpx. This vulnerability was fixed in Firefox 147.0.4, Firefox ESR 140.7.1, Firefox ESR 115.32.1, Thunderbird 140.7.2, and Thunderbird 147.0.2. | NETWORK |
| CVE-2026-16410 | 2026-07-21 13:17:16 | CRITICAL (10) | JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | NETWORK |
| CVE-2026-16409 | 2026-07-21 13:17:16 | HIGH (8) | Invalid pointer in the Security: PSM component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | NETWORK |
| CVE-2026-16407 | 2026-07-21 13:17:16 | CRITICAL (10) | Mitigation bypass in the DOM: Service Workers component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | NETWORK |
| CVE-2026-16403 | 2026-07-21 13:17:16 | MEDIUM (7) | Spoofing issue in the Address Bar component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | NETWORK |
| CVE-2026-16402 | 2026-07-21 13:17:16 | CRITICAL (10) | Integer overflow in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | NETWORK |
| CVE-2026-16401 | 2026-07-21 13:17:15 | HIGH (9) | Privilege escalation in the Data Loss Prevention component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | NETWORK |
| CVE-2026-16400 | 2026-07-21 13:17:15 | HIGH (8) | Information disclosure in the DOM: Security component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | NETWORK |
| CVE-2026-16399 | 2026-07-21 13:17:15 | HIGH (8) | Site isolation issue in the DOM: Navigation component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | NETWORK |
| CVE-2026-16398 | 2026-07-21 13:17:15 | HIGH (8) | Site isolation issue in the Graphics component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | NETWORK |
| CVE-2026-16396 | 2026-07-21 13:17:15 | HIGH (9) | Privilege escalation in WebExtensions. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | NETWORK |
| CVE-2026-16393 | 2026-07-21 13:17:15 | CRITICAL (9) | Incorrect boundary conditions in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | NETWORK |
| CVE-2026-16392 | 2026-07-21 13:17:14 | CRITICAL (9) | JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | NETWORK |
| CVE-2026-16391 | 2026-07-21 13:17:14 | HIGH (8) | Information disclosure in the Storage: IndexedDB component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | NETWORK |
| CVE-2026-16390 | 2026-07-21 13:17:14 | CRITICAL (9) | Mitigation bypass in the Enterprise Policies component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | NETWORK |
| CVE-2026-16389 | 2026-07-21 13:17:14 | CRITICAL (10) | Incorrect boundary conditions, integer overflow in the Libraries component in NSS. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | NETWORK |
| CVE-2026-16388 | 2026-07-21 13:17:14 | CRITICAL (10) | Sandbox escape in the DOM: Networking component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | NETWORK |
| CVE-2026-16387 | 2026-07-21 13:17:14 | CRITICAL (10) | Site isolation issue in the Networking component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | NETWORK |
| CVE-2026-16386 | 2026-07-21 13:17:14 | HIGH (8) | Information disclosure due to uninitialized memory in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | NETWORK |
| CVE-2026-16385 | 2026-07-21 13:17:14 | HIGH (8) | Information disclosure due to uninitialized memory in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | NETWORK |
| CVE-2026-16384 | 2026-07-21 13:17:14 | HIGH (8) | Information disclosure due to uninitialized memory in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | NETWORK |
| CVE-2026-16383 | 2026-07-21 13:17:13 | CRITICAL (10) | Mitigation bypass in the DOM: Networking component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | NETWORK |
| CVE-2026-16382 | 2026-07-21 13:17:13 | CRITICAL (10) | Mitigation bypass in the DOM: Service Workers component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | NETWORK |
| CVE-2026-16381 | 2026-07-21 13:17:13 | CRITICAL (9) | Same-origin policy bypass in the Networking: DNS component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | NETWORK |
| CVE-2026-16380 | 2026-07-21 13:17:13 | CRITICAL (9) | Mitigation bypass in the Networking component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | NETWORK |
| CVE-2026-16379 | 2026-07-21 13:17:13 | HIGH (9) | Privilege escalation in the DOM: Content Processes component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | NETWORK |
| CVE-2026-16378 | 2026-07-21 13:17:13 | HIGH (8) | Other issue in the DOM: Copy & Paste and Drag & Drop component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | NETWORK |
| CVE-2026-16377 | 2026-07-21 13:17:13 | CRITICAL (10) | Mitigation bypass in the PDF Viewer component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | NETWORK |
| CVE-2026-16376 | 2026-07-21 13:17:13 | HIGH (8) | Denial-of-service in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | NETWORK |
| CVE-2026-16375 | 2026-07-21 13:17:13 | CRITICAL (10) | Site isolation issue in the Networking: HTTP component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | NETWORK |
| CVE-2026-16374 | 2026-07-21 13:17:13 | HIGH (8) | Information disclosure in the Framework component in DevTools. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | NETWORK |
| CVE-2026-16372 | 2026-07-21 13:17:12 | HIGH (9) | Privilege escalation in the DOM: Content Processes component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | NETWORK |
| CVE-2026-16371 | 2026-07-21 13:17:12 | HIGH (9) | Privilege escalation in the DOM: Navigation component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | NETWORK |
| CVE-2026-16370 | 2026-07-21 13:17:07 | CRITICAL (9) | Mitigation bypass in the DOM: Networking component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | NETWORK |
| CVE-2026-16369 | 2026-07-21 13:17:07 | CRITICAL (10) | Integer overflow in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | NETWORK |
| CVE-2026-16368 | 2026-07-21 13:17:05 | CRITICAL (10) | Incorrect boundary conditions in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | NETWORK |
| CVE-2026-16367 | 2026-07-21 13:17:05 | CRITICAL (10) | Sandbox escape due to invalid pointer in the Disability Access APIs component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | NETWORK |
| CVE-2026-16366 | 2026-07-21 13:17:05 | HIGH (9) | Privilege escalation in the DOM: Navigation component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | NETWORK |
| CVE-2026-16365 | 2026-07-21 13:17:05 | HIGH (9) | Privilege escalation in the DOM: Workers component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | NETWORK |
| CVE-2026-16364 | 2026-07-21 13:17:05 | CRITICAL (9) | Incorrect boundary conditions in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | NETWORK |
| CVE-2026-16363 | 2026-07-21 13:17:05 | CRITICAL (10) | JIT miscompilation in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | NETWORK |
| CVE-2026-16362 | 2026-07-21 13:17:05 | HIGH (9) | Use-after-free in the WebRTC: Audio/Video component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | NETWORK |
| CVE-2026-16361 | 2026-07-21 13:17:05 | CRITICAL (10) | Memory safety bugs present in Thunderbird ESR 140.12. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox ESR 115.38, Firefox ESR 140.13, and Thunderbird 140.13. | NETWORK |
| CVE-2026-16360 | 2026-07-21 13:17:05 | CRITICAL (10) | Memory safety bugs present in Firefox ESR 115.37, Firefox ESR 140.12 and Firefox 152. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | NETWORK |
| CVE-2026-16359 | 2026-07-21 13:17:04 | CRITICAL (9) | Incorrect boundary conditions in the Audio/Video: GMP component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | NETWORK |
| CVE-2026-16358 | 2026-07-21 13:17:04 | CRITICAL (10) | Site isolation issue in the Graphics: WebRender component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | NETWORK |
| CVE-2026-16357 | 2026-07-21 13:17:04 | CRITICAL (10) | Incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | NETWORK |
| CVE-2026-16356 | 2026-07-21 13:17:04 | CRITICAL (10) | Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | NETWORK |
| CVE-2026-16355 | 2026-07-21 13:17:04 | CRITICAL (10) | JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | NETWORK |
| CVE-2026-16354 | 2026-07-21 13:17:04 | HIGH (8) | Information disclosure in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | NETWORK |
| CVE-2026-16353 | 2026-07-21 13:17:04 | CRITICAL (10) | Invalid pointer in the DOM: Bindings (WebIDL) component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | NETWORK |
| CVE-2026-16352 | 2026-07-21 13:17:04 | CRITICAL (10) | Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | NETWORK |
| CVE-2026-16351 | 2026-07-21 13:17:04 | CRITICAL (10) | Sandbox escape due to use-after-free in the DOM: Navigation component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | NETWORK |
| CVE-2026-16350 | 2026-07-21 13:17:03 | CRITICAL (10) | Incorrect boundary conditions in the Audio/Video: cubeb component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | NETWORK |
| CVE-2026-16349 | 2026-07-21 13:17:03 | CRITICAL (10) | Same-origin policy bypass in the DOM: Navigation component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | NETWORK |
| CVE-2026-12330 | 2026-06-16 13:16:34 | MEDIUM (5) | Incorrect boundary conditions in the Internationalization component. This vulnerability was fixed in Firefox ESR 140.12, Firefox ESR 115.37, and Thunderbird 140.12. | NETWORK |
| CVE-2026-12329 | 2026-06-16 13:16:34 | MEDIUM (5) | Memory safety bug fixed in Thunderbird ESR 140.12. This vulnerability was fixed in Firefox ESR 140.12 and Thunderbird 140.12. | NETWORK |
| CVE-2026-12328 | 2026-06-16 13:16:34 | HIGH (8) | Memory safety bugs present in Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird ESR 140.11, Firefox 151 and Thunderbird 151. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12. | NETWORK |
| CVE-2026-12327 | 2026-06-16 13:16:33 | HIGH (8) | Memory safety bugs present in Firefox ESR 140.11, Thunderbird ESR 140.11, Firefox 151 and Thunderbird 151. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. | NETWORK |
| CVE-2026-12326 | 2026-06-16 13:16:33 | HIGH (8) | Memory safety bugs present in Firefox 151 and Thunderbird 151. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 152 and Thunderbird 152. | NETWORK |
| CVE-2026-12325 | 2026-06-16 13:16:33 | MEDIUM (7) | Denial-of-service in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12. | NETWORK |
| CVE-2026-12324 | 2026-06-16 13:16:33 | HIGH (7) | Incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. | NETWORK |
| CVE-2026-12323 | 2026-06-16 13:16:33 | MEDIUM (5) | Spoofing issue in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 152 and Thunderbird 152. | NETWORK |
| CVE-2026-12322 | 2026-06-16 13:16:33 | MEDIUM (5) | Clickjacking issue in the Widget: Gtk component. This vulnerability was fixed in Firefox 152 and Thunderbird 152. | NETWORK |
| CVE-2026-12321 | 2026-06-16 13:16:33 | MEDIUM (5) | JIT miscompilation in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 152 and Thunderbird 152. | NETWORK |
| CVE-2026-12320 | 2026-06-16 13:16:33 | MEDIUM (4) | Information disclosure in the Password Manager component. This vulnerability was fixed in Firefox 152 and Thunderbird 152. | NETWORK |
| CVE-2026-12319 | 2026-06-16 13:16:33 | MEDIUM (7) | Denial-of-service in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 152 and Thunderbird 152. | NETWORK |
| CVE-2026-12318 | 2026-06-16 13:16:32 | HIGH (7) | Incorrect boundary conditions in the Libraries component in NSS. This vulnerability was fixed in Firefox 152 and Thunderbird 152. | NETWORK |
| CVE-2026-12317 | 2026-06-16 13:16:32 | HIGH (8) | Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152 and Thunderbird 152. | NETWORK |
| CVE-2026-12316 | 2026-06-16 13:16:32 | CRITICAL (9) | Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 152 and Thunderbird 152. | NETWORK |
| CVE-2026-12315 | 2026-06-16 13:16:32 | CRITICAL (9) | Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. | NETWORK |
| CVE-2026-12314 | 2026-06-16 13:16:32 | HIGH (8) | Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. | NETWORK |
| CVE-2026-12313 | 2026-06-16 13:16:32 | MEDIUM (5) | Information disclosure, sandbox escape in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. | NETWORK |
| CVE-2026-12312 | 2026-06-16 13:16:32 | HIGH (8) | Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. | NETWORK |
| CVE-2026-12311 | 2026-06-16 13:16:32 | MEDIUM (5) | Information disclosure, sandbox escape in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. | NETWORK |
| CVE-2026-12310 | 2026-06-16 13:16:31 | HIGH (8) | Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. | NETWORK |
| CVE-2026-12309 | 2026-06-16 13:16:31 | MEDIUM (7) | Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. | NETWORK |
| CVE-2026-12308 | 2026-06-16 13:16:31 | MEDIUM (5) | Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. | NETWORK |
| CVE-2026-12307 | 2026-06-16 13:16:31 | MEDIUM (5) | Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. | NETWORK |
| CVE-2026-12306 | 2026-06-16 13:16:31 | MEDIUM (5) | Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. | NETWORK |
| CVE-2026-12305 | 2026-06-16 13:16:31 | HIGH (8) | Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. | NETWORK |
| CVE-2026-12304 | 2026-06-16 13:16:31 | CRITICAL (9) | Same-origin policy bypass in the Networking: Cookies component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. | NETWORK |
| CVE-2026-12303 | 2026-06-16 13:16:31 | MEDIUM (4) | Information disclosure due to incorrect boundary conditions in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 152 and Thunderbird 152. | NETWORK |
| CVE-2026-12302 | 2026-06-16 13:16:30 | MEDIUM (7) | Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12. | NETWORK |
| CVE-2026-12301 | 2026-06-16 13:16:30 | MEDIUM (5) | Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152 and Thunderbird 152. | NETWORK |
| CVE-2026-12300 | 2026-06-16 13:16:30 | MEDIUM (5) | Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152 and Thunderbird 152. | NETWORK |
| CVE-2026-12299 | 2026-06-16 13:16:30 | MEDIUM (5) | JIT miscompilation in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12. | NETWORK |
| CVE-2026-12298 | 2026-06-16 13:16:30 | MEDIUM (5) | Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. | NETWORK |
| CVE-2026-12297 | 2026-06-16 13:16:30 | CRITICAL (10) | Sandbox escape due to incorrect boundary conditions in the Networking component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12. | NETWORK |
| CVE-2026-12296 | 2026-06-16 13:16:30 | CRITICAL (10) | Sandbox escape in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. | NETWORK |
| CVE-2026-12295 | 2026-06-16 13:16:30 | CRITICAL (10) | Sandbox escape in the DOM: Navigation component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12. | NETWORK |
| CVE-2026-12294 | 2026-06-16 13:16:30 | CRITICAL (10) | Sandbox escape in the DOM: Workers component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12. | NETWORK |
| CVE-2026-12293 | 2026-06-16 13:16:30 | CRITICAL (10) | Use-after-free in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 152 and Thunderbird 152. | NETWORK |
| CVE-2026-12292 | 2026-06-16 13:16:29 | HIGH (8) | Incorrect boundary conditions in the Web Audio component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. | NETWORK |
| CVE-2026-12291 | 2026-06-16 13:16:29 | HIGH (9) | Use-after-free in the Networking: HTTP component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12. | NETWORK |
| CVE-2026-12290 | 2026-06-16 13:16:29 | HIGH (8) | Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12. | NETWORK |
| CVE-2026-12289 | 2026-06-16 13:16:29 | HIGH (9) | Privilege escalation in the Graphics: WebRender component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12. | NETWORK |
| CVE-2026-100832 | 2026-09-29 13:17:48 | HIGH (9) | Use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 140.17, Thunderbird 153.4, Firefox ESR 115.42, and Firefox ESR 140.17. | NETWORK |
| CVE-2026-100831 | 2026-09-29 13:17:48 | HIGH (9) | Use-after-free in the DOM: UI Events & Focus Handling component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157. | NETWORK |
| CVE-2026-100830 | 2026-09-29 13:17:48 | HIGH (8) | Mitigation bypass in the DOM: Navigation component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157. | NETWORK |
| CVE-2026-100829 | 2026-09-29 13:17:48 | CRITICAL (10) | Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157. | NETWORK |
| CVE-2026-100828 | 2026-09-29 13:17:48 | CRITICAL (10) | Mitigation bypass in the Bookmarks & History component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157. | NETWORK |
| CVE-2026-100826 | 2026-09-29 13:17:48 | MEDIUM (7) | Denial-of-service in the Storage: StorageManager component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157. | NETWORK |
| CVE-2026-100825 | 2026-09-29 13:17:48 | HIGH (9) | Use-after-free in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157. | NETWORK |
| CVE-2026-100824 | 2026-09-29 13:17:48 | HIGH (9) | Privilege escalation in the Places component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157. | NETWORK |
| CVE-2026-100822 | 2026-09-29 13:17:48 | MEDIUM (5) | Spoofing issue in the Networking: HTTP component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157. | NETWORK |
| CVE-2026-100821 | 2026-09-29 13:17:47 | MEDIUM (5) | Site isolation issue in the Panning and Zooming component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17. | NETWORK |
| CVE-2026-100820 | 2026-09-29 13:17:47 | HIGH (9) | Privilege escalation in the Address Bar component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, and Firefox ESR 140.17. | NETWORK |
| CVE-2026-100819 | 2026-09-29 13:17:47 | CRITICAL (10) | Sandbox escape due to incorrect boundary conditions in the XPCOM component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17. | NETWORK |
| CVE-2026-100818 | 2026-09-29 13:17:47 | CRITICAL (10) | Sandbox escape due to use-after-free in the Widget: Gtk component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, and Firefox ESR 140.17. | NETWORK |
| CVE-2026-100817 | 2026-09-29 13:17:47 | MEDIUM (5) | Other issue in the JavaScript: WebAssembly component. This vulnerability was fixed in Thunderbird 157 and Firefox 157. | NETWORK |
| CVE-2026-100816 | 2026-09-29 13:17:47 | HIGH (8) | Site isolation issue in the DOM: Networking component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157. | NETWORK |
| CVE-2026-100815 | 2026-09-29 13:17:47 | HIGH (9) | Use-after-free in the CSS Parsing and Computation component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157. | NETWORK |
| CVE-2026-100814 | 2026-09-29 13:17:47 | HIGH (9) | Incorrect boundary conditions in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157. | NETWORK |
| CVE-2026-100813 | 2026-09-29 13:17:46 | HIGH (9) | Invalid pointer in the JavaScript Engine: JIT component. This vulnerability was fixed in Thunderbird 157 and Firefox 157. | NETWORK |
| CVE-2026-100812 | 2026-09-29 13:17:46 | MEDIUM (7) | Denial-of-service in the Graphics component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157. | NETWORK |
| CVE-2026-100811 | 2026-09-29 13:17:46 | CRITICAL (10) | Sandbox escape due to use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, and Firefox ESR 140.17. | NETWORK |
| CVE-2026-100810 | 2026-09-29 13:17:46 | CRITICAL (10) | Other issue in the DevTools component. This vulnerability was fixed in Thunderbird 157 and Firefox 157. | NETWORK |
| CVE-2026-100809 | 2026-09-29 13:17:46 | HIGH (8) | Same-origin policy bypass in the DevTools component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157. | NETWORK |
| CVE-2026-100808 | 2026-09-29 13:17:46 | HIGH (9) | Mitigation bypass in the DOM: Service Workers component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157. | NETWORK |
| CVE-2026-100807 | 2026-09-29 13:17:46 | HIGH (9) | Privilege escalation in the DOM: Service Workers component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, and Firefox ESR 140.17. | NETWORK |
| CVE-2026-100806 | 2026-09-29 13:17:46 | MEDIUM (4) | Uninitialized memory in the Graphics: WebGPU component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157. | NETWORK |
| CVE-2026-100805 | 2026-09-29 13:17:46 | HIGH (8) | Race condition, use-after-free in the Audio/Video component. This vulnerability was fixed in Thunderbird 157 and Firefox 157. | NETWORK |
| CVE-2026-100804 | 2026-09-29 13:17:45 | CRITICAL (10) | Sandbox escape due to use-after-free in the Preferences: Backend component. This vulnerability was fixed in Thunderbird 157 and Firefox 157. | NETWORK |
| CVE-2026-100803 | 2026-09-29 13:17:45 | HIGH (8) | Same-origin policy bypass in the WebExtensions component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17. | NETWORK |
| CVE-2026-100802 | 2026-09-29 13:17:45 | MEDIUM (4) | Uninitialized memory in the Graphics: WebGPU component. This vulnerability was fixed in Thunderbird 157 and Firefox 157. | NETWORK |
| CVE-2026-100801 | 2026-09-29 13:17:45 | HIGH (9) | Privilege escalation in the DLL Services component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, and Firefox ESR 140.17. | NETWORK |
| CVE-2026-100800 | 2026-09-29 13:17:45 | CRITICAL (10) | Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157. | NETWORK |
| CVE-2026-100799 | 2026-09-29 13:17:45 | MEDIUM (4) | Uninitialized memory in the Graphics: WebGPU component. This vulnerability was fixed in Thunderbird 157 and Firefox 157. | NETWORK |
| CVE-2026-100798 | 2026-09-29 13:17:45 | HIGH (8) | Cryptography misuse in Storage: Quota Manager component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157. | NETWORK |
| CVE-2026-100797 | 2026-09-29 13:17:45 | HIGH (9) | Privilege escalation due to use-after-free in the Graphics: WebRender component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17. | NETWORK |
| CVE-2026-100796 | 2026-09-29 13:17:45 | HIGH (9) | Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Thunderbird 157 and Firefox 157. | NETWORK |
| CVE-2026-100795 | 2026-09-29 13:17:45 | MEDIUM (7) | Denial-of-service in the Networking component. This vulnerability was fixed in Thunderbird 157 and Firefox 157. | NETWORK |
| CVE-2026-100794 | 2026-09-29 13:17:44 | CRITICAL (10) | Sandbox escape due to incorrect boundary conditions in the Internationalization component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, and Firefox ESR 140.17. | NETWORK |
| CVE-2026-100793 | 2026-09-29 13:17:44 | MEDIUM (7) | JIT miscompilation in the JavaScript Engine component. This vulnerability was fixed in Thunderbird 157 and Firefox 157. | NETWORK |
| CVE-2026-100792 | 2026-09-29 13:17:44 | HIGH (7) | JIT miscompilation in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, and Firefox ESR 140.17. | NETWORK |
| CVE-2026-100791 | 2026-09-29 13:17:44 | HIGH (9) | Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17. | NETWORK |
| CVE-2026-100790 | 2026-09-29 13:17:44 | HIGH (9) | Use-after-free in the XSLT component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17. | NETWORK |
| CVE-2026-100789 | 2026-09-29 13:17:44 | HIGH (9) | Use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17. | NETWORK |
| CVE-2026-100788 | 2026-09-29 13:17:44 | CRITICAL (10) | Invalid pointer in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, and Firefox ESR 140.17. | NETWORK |
| CVE-2026-100787 | 2026-09-29 13:17:44 | CRITICAL (10) | Sandbox escape in the XUL component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157. | NETWORK |
| CVE-2026-100786 | 2026-09-29 13:17:44 | CRITICAL (10) | Sandbox escape due to use-after-free in the Graphics component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17. | NETWORK |
| CVE-2026-100785 | 2026-09-29 13:17:43 | HIGH (9) | Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17. | NETWORK |
| CVE-2026-100784 | 2026-09-29 13:17:43 | HIGH (9) | Use-after-free in the Layout: Text and Fonts component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17. | NETWORK |
| CVE-2026-100783 | 2026-09-29 13:17:43 | MEDIUM (4) | Uninitialized memory in the Audio/Video component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17. | NETWORK |
| CVE-2026-100782 | 2026-09-29 13:17:43 | HIGH (9) | Privilege escalation due to incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17. | NETWORK |
| CVE-2026-100781 | 2026-09-29 13:17:43 | CRITICAL (10) | Sandbox escape due to incorrect boundary conditions in the Graphics: WebRender component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17. | NETWORK |
| CVE-2026-100780 | 2026-09-29 13:17:43 | HIGH (9) | Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17. | NETWORK |
| CVE-2026-100779 | 2026-09-29 13:17:43 | HIGH (9) | Use-after-free in the XSLT component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17. | NETWORK |
| CVE-2026-100778 | 2026-09-29 13:17:43 | CRITICAL (10) | Sandbox escape due to use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17. | NETWORK |
| CVE-2026-100777 | 2026-09-29 13:17:42 | HIGH (9) | Use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17. | NETWORK |
| CVE-2026-100776 | 2026-09-29 13:17:42 | HIGH (9) | Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, and Firefox ESR 140.17. | NETWORK |
| CVE-2026-100775 | 2026-09-29 13:17:42 | CRITICAL (10) | Sandbox escape in the Graphics component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17. | NETWORK |
| CVE-2026-100774 | 2026-09-29 13:17:42 | HIGH (9) | Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17. | NETWORK |
| CVE-2026-100773 | 2026-09-29 13:17:42 | HIGH (9) | Use-after-free in the Storage: IndexedDB component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17. | NETWORK |
| CVE-2026-100772 | 2026-09-29 13:17:41 | HIGH (9) | Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, and Firefox ESR 140.17. | NETWORK |
| CVE-2026-100771 | 2026-09-29 13:17:41 | HIGH (8) | Undefined behavior in the DOM: Streams component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17. | NETWORK |
| CVE-2026-100770 | 2026-09-29 13:17:41 | CRITICAL (10) | Sandbox escape due to use-after-free in the DOM: Content Processes component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17. | NETWORK |
| CVE-2026-100769 | 2026-09-29 13:17:41 | HIGH (9) | Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, and Firefox ESR 140.17. | NETWORK |
| CVE-2026-100768 | 2026-09-29 13:17:41 | HIGH (9) | Use-after-free in the Graphics: WebGPU component. This vulnerability was fixed in Thunderbird 157 and Firefox 157. | NETWORK |
| CVE-2026-100767 | 2026-09-29 13:17:41 | HIGH (9) | Use-after-free in the Networking: Cache component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17. | NETWORK |
| CVE-2026-100766 | 2026-09-29 13:17:41 | MEDIUM (4) | Information disclosure in the Networking: JAR component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17. | NETWORK |
| CVE-2026-100765 | 2026-09-29 13:17:41 | HIGH (9) | Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157. | NETWORK |
| CVE-2026-100764 | 2026-09-29 13:17:41 | HIGH (9) | Privilege escalation due to incorrect boundary conditions in the Graphics: WebGPU component. This vulnerability was fixed in Thunderbird 157 and Firefox 157. | NETWORK |
| CVE-2026-100763 | 2026-09-29 13:17:41 | CRITICAL (9) | Incorrect boundary conditions in the Graphics: WebGPU component. This vulnerability was fixed in Thunderbird 157 and Firefox 157. | NETWORK |
| CVE-2026-100762 | 2026-09-29 13:17:40 | CRITICAL (10) | Sandbox escape due to use-after-free in the DOM: Content Processes component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17. | NETWORK |
| CVE-2026-100761 | 2026-09-29 13:17:40 | HIGH (9) | Privilege escalation due to use-after-free in the Graphics: WebGPU component. This vulnerability was fixed in Thunderbird 157 and Firefox 157. | NETWORK |
| CVE-2026-100760 | 2026-09-29 13:17:40 | CRITICAL (10) | Sandbox escape in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157. | NETWORK |
| CVE-2026-100759 | 2026-09-29 13:17:40 | HIGH (8) | Uninitialized memory in the Storage: Quota Manager component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17. | NETWORK |
| CVE-2026-100758 | 2026-09-29 13:17:40 | CRITICAL (10) | Sandbox escape in the DOM: Navigation component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17. | NETWORK |
| CVE-2026-100757 | 2026-09-29 13:17:40 | HIGH (9) | Use-after-free in the Widget component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17. | NETWORK |
| CVE-2026-100756 | 2026-09-29 13:17:40 | HIGH (8) | Incorrect boundary conditions in the Audio/Video: Playback component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17. | NETWORK |
| CVE-2026-0892 | 2026-01-13 14:16:40 | CRITICAL (10) | Memory safety bugs present in Firefox 146 and Thunderbird 146. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 147 and Thunderbird 147. | NETWORK |
| CVE-2026-0891 | 2026-01-13 14:16:40 | HIGH (8) | Memory safety bugs present in Firefox ESR 140.6, Thunderbird ESR 140.6, Firefox 146 and Thunderbird 146. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7. | NETWORK |
| CVE-2026-0890 | 2026-01-13 14:16:40 | MEDIUM (5) | Spoofing issue in the DOM: Copy & Paste and Drag & Drop component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7. | NETWORK |
| CVE-2026-0889 | 2026-01-13 14:16:39 | HIGH (8) | Denial-of-service in the DOM: Service Workers component. This vulnerability was fixed in Firefox 147 and Thunderbird 147. | NETWORK |
| CVE-2026-0888 | 2026-01-13 14:16:39 | MEDIUM (5) | Information disclosure in the XML component. This vulnerability was fixed in Firefox 147 and Thunderbird 147. | NETWORK |
| CVE-2026-0887 | 2026-01-13 14:16:39 | MEDIUM (4) | Clickjacking issue, information disclosure in the PDF Viewer component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7. | NETWORK |
| CVE-2026-0886 | 2026-01-13 14:16:39 | MEDIUM (5) | Incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 147, Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7. | NETWORK |
| CVE-2026-0885 | 2026-01-13 14:16:39 | MEDIUM (7) | Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7. | NETWORK |
| CVE-2026-0884 | 2026-01-13 14:16:39 | CRITICAL (10) | Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7. | NETWORK |
| CVE-2026-0883 | 2026-01-13 14:16:39 | MEDIUM (5) | Information disclosure in the Networking component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7. | NETWORK |
| CVE-2026-0882 | 2026-01-13 14:16:39 | HIGH (9) | Use-after-free in the IPC component. This vulnerability was fixed in Firefox 147, Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7. | NETWORK |
| CVE-2026-0881 | 2026-01-13 14:16:39 | CRITICAL (10) | Sandbox escape in the Messaging System component. This vulnerability was fixed in Firefox 147 and Thunderbird 147. | NETWORK |
| CVE-2026-0880 | 2026-01-13 14:16:39 | HIGH (9) | Sandbox escape due to integer overflow in the Graphics component. This vulnerability was fixed in Firefox 147, Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7. | NETWORK |
| CVE-2026-0879 | 2026-01-13 14:16:38 | CRITICAL (10) | Sandbox escape due to incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 147, Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7. | NETWORK |
| CVE-2026-0878 | 2026-01-13 14:16:38 | HIGH (8) | Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7. | NETWORK |
| CVE-2026-0877 | 2026-01-13 14:16:38 | HIGH (8) | Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 147, Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7. | NETWORK |
| CVE-2025-9187 | 2025-08-19 21:15:31 | CRITICAL (10) | Memory safety bugs present in Firefox 141 and Thunderbird 141. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 142 and Thunderbird < 142. | NETWORK |
| CVE-2025-9185 | 2025-08-19 21:15:31 | HIGH (8) | Memory safety bugs present in Firefox ESR 115.26, Firefox ESR 128.13, Thunderbird ESR 128.13, Firefox ESR 140.1, Thunderbird ESR 140.1, Firefox 141 and Thunderbird 141. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 142, Firefox ESR < 115.27, Firefox ESR < 128.14, Firefox ESR < 140.2, Thunderbird < 142, Thunderbird < 128.14, and Thunderbird < 140.2. | NETWORK |
| CVE-2025-9184 | 2025-08-19 21:15:31 | HIGH (8) | Memory safety bugs present in Firefox ESR 140.1, Thunderbird ESR 140.1, Firefox 141 and Thunderbird 141. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 142, Firefox ESR < 140.2, Thunderbird < 142, and Thunderbird < 140.2. | NETWORK |
| CVE-2025-9182 | 2025-08-19 21:15:31 | HIGH (8) | Denial-of-service due to out-of-memory in the Graphics: WebRender component. This vulnerability affects Firefox < 142, Firefox ESR < 140.2, Thunderbird < 142, and Thunderbird < 140.2. | NETWORK |
| CVE-2025-9181 | 2025-08-19 21:15:31 | MEDIUM (7) | Uninitialized memory in the JavaScript Engine component. This vulnerability affects Firefox < 142, Firefox ESR < 128.14, Firefox ESR < 140.2, Thunderbird < 142, Thunderbird < 128.14, and Thunderbird < 140.2. | NETWORK |
| CVE-2025-9180 | 2025-08-19 21:15:30 | HIGH (8) | Same-origin policy bypass in the Graphics: Canvas2D component. This vulnerability affects Firefox < 142, Firefox ESR < 115.27, Firefox ESR < 128.14, Firefox ESR < 140.2, Thunderbird < 142, Thunderbird < 128.14, and Thunderbird < 140.2. | NETWORK |
| CVE-2025-9179 | 2025-08-19 21:15:30 | CRITICAL (10) | An attacker was able to perform memory corruption in the GMP process which processes encrypted media. This process is also heavily sandboxed, but represents slightly different privileges from the content process. This vulnerability affects Firefox < 142, Firefox ESR < 115.27, Firefox ESR < 128.14, Firefox ESR < 140.2, Thunderbird < 142, Thunderbird < 128.14, and Thunderbird < 140.2. | NETWORK |
| CVE-2025-8044 | 2025-07-22 21:15:51 | CRITICAL (10) | Memory safety bugs present in Firefox 140 and Thunderbird 140. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 141 and Thunderbird < 141. | NETWORK |
| CVE-2025-8043 | 2025-07-22 21:15:51 | CRITICAL (10) | Focus incorrectly truncated URLs towards the beginning instead of around the origin. This vulnerability affects Firefox < 141 and Thunderbird < 141. | NETWORK |
| CVE-2025-8040 | 2025-07-22 21:15:51 | HIGH (9) | Memory safety bugs present in Firefox ESR 140.0, Thunderbird ESR 140.0, Firefox 140 and Thunderbird 140. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 141, Firefox ESR < 140.1, Thunderbird < 141, and Thunderbird < 140.1. | NETWORK |
| CVE-2025-8039 | 2025-07-22 21:15:51 | HIGH (8) | In some cases search terms persisted in the URL bar even after navigating away from the search page. This vulnerability affects Firefox < 141, Firefox ESR < 140.1, Thunderbird < 141, and Thunderbird < 140.1. | NETWORK |
| CVE-2025-8038 | 2025-07-22 21:15:51 | CRITICAL (10) | Thunderbird ignored paths when checking the validity of navigations in a frame. This vulnerability affects Firefox < 141, Firefox ESR < 140.1, Thunderbird < 141, and Thunderbird < 140.1. | NETWORK |
| CVE-2025-8037 | 2025-07-22 21:15:51 | CRITICAL (9) | Setting a nameless cookie with an equals sign in the value shadowed other cookies. Even if the nameless cookie was set over HTTP and the shadowed cookie included the `Secure` attribute. This vulnerability affects Firefox < 141, Firefox ESR < 140.1, Thunderbird < 141, and Thunderbird < 140.1. | NETWORK |
| CVE-2025-8036 | 2025-07-22 21:15:51 | HIGH (8) | Thunderbird cached CORS preflight responses across IP address changes. This allowed circumventing CORS with DNS rebinding. This vulnerability affects Firefox < 141, Firefox ESR < 140.1, Thunderbird < 141, and Thunderbird < 140.1. | NETWORK |
| CVE-2025-8035 | 2025-07-22 21:15:51 | HIGH (9) | Memory safety bugs present in Firefox ESR 128.12, Thunderbird ESR 128.12, Firefox ESR 140.0, Thunderbird ESR 140.0, Firefox 140 and Thunderbird 140. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 141, Firefox ESR < 128.13, Firefox ESR < 140.1, Thunderbird < 141, Thunderbird < 128.13, and Thunderbird < 140.1. | NETWORK |
| CVE-2025-8034 | 2025-07-22 21:15:51 | HIGH (9) | Memory safety bugs present in Firefox ESR 115.25, Firefox ESR 128.12, Thunderbird ESR 128.12, Firefox ESR 140.0, Thunderbird ESR 140.0, Firefox 140 and Thunderbird 140. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 141, Firefox ESR < 115.26, Firefox ESR < 128.13, Firefox ESR < 140.1, Thunderbird < 141, Thunderbird < 128.13, and Thunderbird < 140.1. | NETWORK |
| CVE-2025-8033 | 2025-07-22 21:15:50 | MEDIUM (7) | The JavaScript engine did not handle closed generators correctly and it was possible to resume them leading to a nullptr deref. This vulnerability affects Firefox < 141, Firefox ESR < 115.26, Firefox ESR < 128.13, Firefox ESR < 140.1, Thunderbird < 141, Thunderbird < 128.13, and Thunderbird < 140.1. | NETWORK |
| CVE-2025-8032 | 2025-07-22 21:15:50 | HIGH (8) | XSLT document loading did not correctly propagate the source document which bypassed its CSP. This vulnerability affects Firefox < 141, Firefox ESR < 128.13, Firefox ESR < 140.1, Thunderbird < 141, Thunderbird < 128.13, and Thunderbird < 140.1. | NETWORK |
| CVE-2025-8031 | 2025-07-22 21:15:50 | CRITICAL (10) | The `username:password` part was not correctly stripped from URLs in CSP reports potentially leaking HTTP Basic Authentication credentials. This vulnerability affects Firefox < 141, Firefox ESR < 128.13, Firefox ESR < 140.1, Thunderbird < 141, Thunderbird < 128.13, and Thunderbird < 140.1. | NETWORK |
| CVE-2025-8030 | 2025-07-22 21:15:50 | HIGH (8) | Insufficient escaping in the “Copy as cURL” feature could potentially be used to trick a user into executing unexpected code. This vulnerability affects Firefox < 141, Firefox ESR < 128.13, Firefox ESR < 140.1, Thunderbird < 141, Thunderbird < 128.13, and Thunderbird < 140.1. | NETWORK |
| CVE-2025-8029 | 2025-07-22 21:15:50 | HIGH (8) | Thunderbird executed `javascript:` URLs when used in `object` and `embed` tags. This vulnerability affects Firefox < 141, Firefox ESR < 128.13, Firefox ESR < 140.1, Thunderbird < 141, Thunderbird < 128.13, and Thunderbird < 140.1. | NETWORK |
| CVE-2025-8028 | 2025-07-22 21:15:50 | CRITICAL (10) | On arm64, a WASM `br_table` instruction with a lot of entries could lead to the label being too far from the instruction causing truncation and incorrect computation of the branch address. This vulnerability affects Firefox < 141, Firefox ESR < 115.26, Firefox ESR < 128.13, Firefox ESR < 140.1, Thunderbird < 141, Thunderbird < 128.13, and Thunderbird < 140.1. | NETWORK |
| CVE-2025-8027 | 2025-07-22 21:15:50 | MEDIUM (7) | On 64-bit platforms IonMonkey-JIT only wrote 32 bits of the 64-bit return value space on the stack. Baseline-JIT, however, read the entire 64 bits. This vulnerability affects Firefox < 141, Firefox ESR < 115.26, Firefox ESR < 128.13, Firefox ESR < 140.1, Thunderbird < 141, Thunderbird < 128.13, and Thunderbird < 140.1. | NETWORK |
| CVE-2025-6436 | 2025-06-24 13:15:25 | HIGH (8) | Memory safety bugs present in Firefox 139 and Thunderbird 139. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 140 and Thunderbird < 140. | NETWORK |
| CVE-2025-6435 | 2025-06-24 13:15:25 | HIGH (8) | If a user saved a response from the Network tab in Devtools using the Save As context menu option, that file may not have been saved with the `.download` file extension. This could have led to the user inadvertently running a malicious executable. This vulnerability affects Firefox < 140 and Thunderbird < 140. | NETWORK |
| CVE-2025-5986 | 2025-06-11 12:15:29 | MEDIUM (7) | A crafted HTML email using mailbox:/// links can trigger automatic, unsolicited downloads of .pdf files to the user's desktop or home directory without prompting, even if auto-saving is disabled. This behavior can be abused to fill the disk with garbage data (e.g. using /dev/urandom on Linux) or to leak Windows credentials via SMB links when the email is viewed in HTML mode. While user interaction is required to download the .pdf file, visual obfuscation can conceal the download trigger. Viewing the email in HTML mode is enough to load external content. This vulnerability affects Thunderbird < 128.11.1 and Thunderbird < 139.0.2. | NETWORK |
| CVE-2025-5272 | 2025-05-27 13:15:23 | HIGH (7) | Memory safety bugs present in Firefox 138 and Thunderbird 138. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 139 and Thunderbird < 139. | NETWORK |
| CVE-2025-5269 | 2025-05-27 13:15:23 | MEDIUM (8) | Memory safety bug present in Firefox ESR 128.10, and Thunderbird 128.10. This bug showed evidence of memory corruption and we presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 128.11 and Thunderbird < 128.11. | NETWORK |
| CVE-2025-5268 | 2025-05-27 13:15:23 | MEDIUM (8) | Memory safety bugs present in Firefox 138, Thunderbird 138, Firefox ESR 128.10, and Thunderbird 128.10. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 139, Firefox ESR < 128.11, Thunderbird < 139, and Thunderbird < 128.11. | NETWORK |
| CVE-2025-4919 | 2025-05-17 22:15:20 | HIGH (9) | An attacker was able to perform an out-of-bounds read or write on a JavaScript object by confusing array index sizes. This vulnerability affects Firefox < 138.0.4, Firefox ESR < 128.10.1, Firefox ESR < 115.23.1, Thunderbird < 128.10.2, and Thunderbird < 138.0.2. | NETWORK |
| CVE-2025-4918 | 2025-05-17 22:15:20 | CRITICAL (10) | An attacker was able to perform an out-of-bounds read or write on a JavaScript `Promise` object. This vulnerability affects Firefox < 138.0.4, Firefox ESR < 128.10.1, Firefox ESR < 115.23.1, Thunderbird < 128.10.2, and Thunderbird < 138.0.2. | NETWORK |
| CVE-2025-4093 | 2025-04-29 14:15:36 | HIGH (8) | Memory safety bug present in Firefox ESR 128.9, and Thunderbird 128.9. This bug showed evidence of memory corruption and we presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 128.10 and Thunderbird < 128.10. | NETWORK |
| CVE-2025-4092 | 2025-04-29 14:15:36 | MEDIUM (7) | Memory safety bugs present in Firefox 137 and Thunderbird 137. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 138 and Thunderbird < 138. | NETWORK |
| CVE-2025-4091 | 2025-04-29 14:15:36 | HIGH (8) | Memory safety bugs present in Firefox 137, Thunderbird 137, Firefox ESR 128.9, and Thunderbird 128.9. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 138, Firefox ESR < 128.10, Thunderbird < 138, and Thunderbird < 128.10. | NETWORK |
| CVE-2025-4090 | 2025-04-29 14:15:36 | MEDIUM (5) | A vulnerability existed in Thunderbird for Android where potentially sensitive library locations were logged via Logcat. This vulnerability affects Firefox < 138 and Thunderbird < 138. | NETWORK |
| CVE-2025-4089 | 2025-04-29 14:15:36 | MEDIUM (5) | Due to insufficient escaping of special characters in the "copy as cURL" feature, an attacker could trick a user into using this command, potentially leading to local code execution on the user's system. This vulnerability affects Firefox < 138 and Thunderbird < 138. | LOCAL |
| CVE-2025-4088 | 2025-04-29 14:15:35 | MEDIUM (7) | A security vulnerability in Thunderbird allowed malicious sites to use redirects to send credentialed requests to arbitrary endpoints on any site that had invoked the Storage Access API. This enabled potential Cross-Site Request Forgery attacks across origins. This vulnerability affects Firefox < 138 and Thunderbird < 138. | NETWORK |
| CVE-2025-4087 | 2025-04-29 14:15:35 | MEDIUM (5) | A vulnerability was identified in Thunderbird where XPath parsing could trigger undefined behavior due to missing null checks during attribute access. This could lead to out-of-bounds read access and potentially, memory corruption. This vulnerability affects Firefox < 138, Firefox ESR < 128.10, Thunderbird < 138, and Thunderbird < 128.10. | NETWORK |
| CVE-2025-4086 | 2025-04-29 14:15:35 | MEDIUM (7) | A specially crafted filename containing a large number of encoded newline characters could obscure the file's extension when displayed in the download dialog. *This bug only affects Thunderbird for Android. Other versions of Thunderbird are unaffected.* This vulnerability affects Firefox < 138 and Thunderbird < 138. | NETWORK |
| CVE-2025-4085 | 2025-04-29 14:15:35 | HIGH (7) | An attacker with control over a content process could potentially leverage the privileged UITour actor to leak sensitive information or escalate privileges. This vulnerability affects Firefox < 138 and Thunderbird < 138. | NETWORK |
| CVE-2025-4084 | 2025-04-29 14:15:35 | MEDIUM (6) | Due to insufficient escaping of the special characters in the "copy as cURL" feature, an attacker could trick a user into using this command, potentially leading to local code execution on the user's system. *This bug only affects Firefox for Windows. Other versions of Firefox are unaffected.* This vulnerability affects Firefox ESR < 128.10, Firefox ESR < 115.23, and Thunderbird < 128.10. | NETWORK |
| CVE-2025-4083 | 2025-04-29 14:15:35 | CRITICAL (9) | A process isolation vulnerability in Thunderbird stemmed from improper handling of javascript: URIs, which could allow content to execute in the top-level document's process instead of the intended frame, potentially enabling a sandbox escape. This vulnerability affects Firefox < 138, Firefox ESR < 128.10, Firefox ESR < 115.23, Thunderbird < 138, and Thunderbird < 128.10. | NETWORK |
| CVE-2025-4082 | 2025-04-29 14:15:35 | MEDIUM (6) | Modification of specific WebGL shader attributes could trigger an out-of-bounds read, which, when chained with other vulnerabilities, could be used to escalate privileges. *This bug only affects Thunderbird for macOS. Other versions of Thunderbird are unaffected.* This vulnerability affects Firefox < 138, Firefox ESR < 128.10, Firefox ESR < 115.23, Thunderbird < 138, and Thunderbird < 128.10. | NETWORK |
| CVE-2025-3522 | 2025-04-15 15:16:10 | MEDIUM (6) | Thunderbird processes the X-Mozilla-External-Attachment-URL header to handle attachments which can be hosted externally. When an email is opened, Thunderbird accesses the specified URL to determine file size, and navigates to it when the user clicks the attachment. Because the URL is not validated or sanitized, it can reference internal resources like chrome:// or SMB share file:// links, potentially leading to hashed Windows credential leakage and opening the door to more serious security issues. This vulnerability affects Thunderbird < 137.0.2 and Thunderbird < 128.9.2. | NETWORK |
| CVE-2025-3034 | 2025-04-01 13:15:42 | HIGH (8) | Memory safety bugs present in Firefox 136 and Thunderbird 136. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 137 and Thunderbird < 137. | NETWORK |
| CVE-2025-3033 | 2025-04-01 13:15:42 | HIGH (8) | After selecting a malicious Windows `.url` shortcut from the local filesystem, an unexpected file could be uploaded. *This bug only affects Firefox on Windows. Other operating systems are unaffected.* This vulnerability affects Firefox < 137 and Thunderbird < 137. | LOCAL |
| CVE-2025-3032 | 2025-04-01 13:15:42 | HIGH (7) | Leaking of file descriptors from the fork server to web content processes could allow for privilege escalation attacks. This vulnerability affects Firefox < 137 and Thunderbird < 137. | NETWORK |
| CVE-2025-3031 | 2025-04-01 13:15:41 | MEDIUM (7) | An attacker could read 32 bits of values spilled onto the stack in a JIT compiled function. This vulnerability affects Firefox < 137 and Thunderbird < 137. | NETWORK |
| CVE-2025-3030 | 2025-04-01 13:15:41 | HIGH (8) | Memory safety bugs present in Firefox 136, Thunderbird 136, Firefox ESR 128.8, and Thunderbird 128.8. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 137, Firefox ESR < 128.9, Thunderbird < 137, and Thunderbird < 128.9. | NETWORK |
| CVE-2025-3029 | 2025-04-01 13:15:41 | HIGH (7) | A crafted URL containing specific Unicode characters could have hidden the true origin of the page, resulting in a potential spoofing attack. This vulnerability affects Firefox < 137, Firefox ESR < 128.9, Thunderbird < 137, and Thunderbird < 128.9. | NETWORK |
| CVE-2025-3028 | 2025-04-01 13:15:41 | MEDIUM (7) | JavaScript code running while transforming a document with the XSLTProcessor could lead to a use-after-free. This vulnerability affects Firefox < 137, Firefox ESR < 115.22, Firefox ESR < 128.9, Thunderbird < 137, and Thunderbird < 128.9. | NETWORK |
| CVE-2025-2830 | 2025-04-15 15:16:09 | MEDIUM (6) | By crafting a malformed file name for an attachment in a multipart message, an attacker can trick Thunderbird into including a directory listing of /tmp when the message is forwarded or edited as a new message. This vulnerability could allow attackers to disclose sensitive information from the victim's system. This vulnerability is not limited to Linux; similar behavior has been observed on Windows as well. This vulnerability affects Thunderbird < 137.0.2 and Thunderbird < 128.9.2. | NETWORK |
| CVE-2025-2817 | 2025-04-29 14:15:32 | HIGH (9) | Thunderbird's update mechanism allowed a medium-integrity user process to interfere with the SYSTEM-level updater by manipulating the file-locking behavior. By injecting code into the user-privileged process, an attacker could bypass intended access controls, allowing SYSTEM-level file operations on paths controlled by a non-privileged user and enabling privilege escalation. This vulnerability affects Firefox < 138, Firefox ESR < 128.10, Firefox ESR < 115.23, Thunderbird < 138, and Thunderbird < 128.10. | NETWORK |
| CVE-2025-26695 | 2025-03-10 19:15:41 | MEDIUM (5) | When requesting an OpenPGP key from a WKD server, an incorrect padding size was used and a network observer could have learned the length of the requested email address. This vulnerability affects Thunderbird < 136 and Thunderbird < 128.8. | LOCAL |
| CVE-2025-1943 | 2025-03-04 14:15:39 | HIGH (8) | Memory safety bugs present in Firefox 135 and Thunderbird 135. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 136 and Thunderbird < 136. | NETWORK |
| CVE-2025-1942 | 2025-03-04 14:15:39 | CRITICAL (10) | When String.toUpperCase() caused a string to get longer it was possible for uninitialized memory to be incorporated into the result string This vulnerability affects Firefox < 136 and Thunderbird < 136. | NETWORK |
| CVE-2025-1938 | 2025-03-04 14:15:39 | MEDIUM (7) | Memory safety bugs present in Firefox 135, Thunderbird 135, Firefox ESR 128.7, and Thunderbird 128.7. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 136, Firefox ESR < 128.8, Thunderbird < 136, and Thunderbird < 128.8. | NETWORK |
| CVE-2025-1937 | 2025-03-04 14:15:39 | HIGH (8) | Memory safety bugs present in Firefox 135, Thunderbird 135, Firefox ESR 115.20, Firefox ESR 128.7, and Thunderbird 128.7. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 136, Firefox ESR < 115.21, Firefox ESR < 128.8, Thunderbird < 136, and Thunderbird < 128.8. | NETWORK |
| CVE-2025-1936 | 2025-03-04 14:15:39 | HIGH (7) | jar: URLs retrieve local file content packaged in a ZIP archive. The null and everything after it was ignored when retrieving the content from the archive, but the fake extension after the null was used to determine the type of content. This could have been used to hide code in a web extension disguised as something else like an image. This vulnerability affects Firefox < 136, Firefox ESR < 128.8, Thunderbird < 136, and Thunderbird < 128.8. | NETWORK |
| CVE-2025-1935 | 2025-03-04 14:15:38 | MEDIUM (4) | A web page could trick a user into setting that site as the default handler for a custom URL protocol. This vulnerability affects Firefox < 136, Firefox ESR < 128.8, Thunderbird < 136, and Thunderbird < 128.8. | NETWORK |
| CVE-2025-1934 | 2025-03-04 14:15:38 | MEDIUM (7) | It was possible to interrupt the processing of a RegExp bailout and run additional JavaScript, potentially triggering garbage collection when the engine was not expecting it. This vulnerability affects Firefox < 136, Firefox ESR < 128.8, Thunderbird < 136, and Thunderbird < 128.8. | NETWORK |
| CVE-2025-1933 | 2025-03-04 14:15:38 | HIGH (8) | On 64-bit CPUs, when the JIT compiles WASM i32 return values they can pick up bits from left over memory. This can potentially cause them to be treated as a different type. This vulnerability affects Firefox < 136, Firefox ESR < 115.21, Firefox ESR < 128.8, Thunderbird < 136, and Thunderbird < 128.8. | NETWORK |
| CVE-2025-1932 | 2025-03-04 14:15:38 | HIGH (8) | An inconsistent comparator in xslt/txNodeSorter could have resulted in potentially exploitable out-of-bounds access. Only affected version 122 and later. This vulnerability affects Firefox < 136, Firefox ESR < 128.8, Thunderbird < 136, and Thunderbird < 128.8. | NETWORK |
| CVE-2025-1931 | 2025-03-04 14:15:38 | HIGH (8) | It was possible to cause a use-after-free in the content process side of a WebTransport connection, leading to a potentially exploitable crash. This vulnerability affects Firefox < 136, Firefox ESR < 115.21, Firefox ESR < 128.8, Thunderbird < 136, and Thunderbird < 128.8. | NETWORK |
| CVE-2025-1930 | 2025-03-04 14:15:38 | HIGH (9) | On Windows, a compromised content process could use bad StreamData sent over AudioIPC to trigger a use-after-free in the Browser process. This could have led to a sandbox escape. This vulnerability affects Firefox < 136, Firefox ESR < 115.21, Firefox ESR < 128.8, Thunderbird < 136, and Thunderbird < 128.8. | NETWORK |
| CVE-2025-14333 | 2025-12-09 16:17:41 | HIGH (8) | Memory safety bugs present in Firefox ESR 140.5, Thunderbird ESR 140.5, Firefox 145 and Thunderbird 145. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 146, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6. | NETWORK |
| CVE-2025-14332 | 2025-12-09 16:17:41 | HIGH (7) | Memory safety bugs present in Firefox 145 and Thunderbird 145. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 146 and Thunderbird 146. | NETWORK |
| CVE-2025-14331 | 2025-12-09 16:17:41 | MEDIUM (7) | Same-origin policy bypass in the Request Handling component. This vulnerability was fixed in Firefox 146, Firefox ESR 115.31, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6. | NETWORK |
| CVE-2025-14330 | 2025-12-09 16:17:41 | CRITICAL (10) | JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 146, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6. | NETWORK |
| CVE-2025-14329 | 2025-12-09 16:17:41 | HIGH (9) | Privilege escalation in the Netmonitor component. This vulnerability was fixed in Firefox 146, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6. | NETWORK |
| CVE-2025-14328 | 2025-12-09 16:17:40 | HIGH (9) | Privilege escalation in the Netmonitor component. This vulnerability was fixed in Firefox 146, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6. | NETWORK |
| CVE-2025-14327 | 2025-12-09 16:17:40 | HIGH (8) | Spoofing issue in the Downloads Panel component. This vulnerability was fixed in Firefox 146, Thunderbird 146, Firefox ESR 140.7, and Thunderbird 140.7. | NETWORK |
| CVE-2025-14326 | 2025-12-09 16:17:40 | CRITICAL (10) | Use-after-free in the Audio/Video: GMP component. This vulnerability was fixed in Firefox 146 and Thunderbird 146. | NETWORK |
| CVE-2025-14325 | 2025-12-09 16:17:40 | HIGH (7) | JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 146, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6. | NETWORK |
| CVE-2025-14324 | 2025-12-09 16:17:40 | CRITICAL (10) | JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 146, Firefox ESR 115.31, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6. | NETWORK |
| CVE-2025-14323 | 2025-12-09 16:17:40 | HIGH (9) | Privilege escalation in the DOM: Notifications component. This vulnerability was fixed in Firefox 146, Firefox ESR 115.31, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6. | NETWORK |
| CVE-2025-14322 | 2025-12-09 16:17:40 | HIGH (8) | Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 146, Firefox ESR 115.31, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6. | NETWORK |
| CVE-2025-14321 | 2025-12-09 16:17:39 | CRITICAL (10) | Use-after-free in the WebRTC: Signaling component. This vulnerability was fixed in Firefox 146, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6. | NETWORK |
| CVE-2025-11721 | 2025-10-14 13:15:39 | CRITICAL (10) | Memory safety bug present in Firefox 143 and Thunderbird 143. This bug showed evidence of memory corruption and we presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 144 and Thunderbird 144. | NETWORK |
| CVE-2025-11719 | 2025-10-14 13:15:38 | CRITICAL (10) | Starting in Thunderbird 143, the use of the native messaging API by web extensions on Windows could lead to crashes caused by use-after-free memory corruption. This vulnerability was fixed in Firefox 144 and Thunderbird 144. | NETWORK |
| CVE-2025-11716 | 2025-10-14 13:15:38 | MEDIUM (7) | Links in a sandboxed iframe could open an external app on Android without the required "allow-" permission. This vulnerability was fixed in Firefox 144 and Thunderbird 144. | NETWORK |
| CVE-2025-11715 | 2025-10-14 13:15:38 | HIGH (9) | Memory safety bugs present in Firefox ESR 140.3, Thunderbird ESR 140.3, Firefox 143 and Thunderbird 143. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 144, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4. | NETWORK |
| CVE-2025-11714 | 2025-10-14 13:15:38 | HIGH (9) | Memory safety bugs present in Firefox ESR 115.28, Firefox ESR 140.3, Thunderbird ESR 140.3, Firefox 143 and Thunderbird 143. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 144, Firefox ESR 115.29, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4. | NETWORK |
| CVE-2025-11713 | 2025-10-14 13:15:38 | HIGH (8) | Insufficient escaping in the “Copy as cURL” feature could have been used to trick a user into executing unexpected code on Windows. This did not affect the application when running on other operating systems. This vulnerability was fixed in Firefox 144, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4. | NETWORK |
| CVE-2025-11712 | 2025-10-14 13:15:37 | MEDIUM (6) | A malicious page could have used the type attribute of an OBJECT tag to override the default browser behavior when encountering a web resource served without a content-type. This could have contributed to an XSS on a site that unsafely serves files without a content-type header. This vulnerability was fixed in Firefox 144, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4. | NETWORK |
| CVE-2025-11711 | 2025-10-14 13:15:37 | MEDIUM (7) | There was a way to change the value of JavaScript Object properties that were supposed to be non-writeable. This vulnerability was fixed in Firefox 144, Firefox ESR 115.29, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4. | NETWORK |
| CVE-2025-11710 | 2025-10-14 13:15:37 | CRITICAL (10) | A compromised web process using malicious IPC messages could have caused the privileged browser process to reveal blocks of its memory to the compromised process. This vulnerability was fixed in Firefox 144, Firefox ESR 115.29, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4. | NETWORK |
| CVE-2025-11709 | 2025-10-14 13:15:37 | CRITICAL (10) | A compromised web process was able to trigger out of bounds reads and writes in a more privileged process using manipulated WebGL textures. This vulnerability was fixed in Firefox 144, Firefox ESR 115.29, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4. | NETWORK |
| CVE-2025-11708 | 2025-10-14 13:15:37 | CRITICAL (10) | Use-after-free in MediaTrackGraphImpl::GetInstance(). This vulnerability was fixed in Firefox 144, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4. | NETWORK |
| CVE-2025-10537 | 2025-09-16 13:15:49 | HIGH (9) | Memory safety bugs present in Firefox ESR 140.2, Thunderbird ESR 140.2, Firefox 142 and Thunderbird 142. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 143, Firefox ESR < 140.3, Thunderbird < 143, and Thunderbird < 140.3. | NETWORK |
| CVE-2025-10536 | 2025-09-16 13:15:49 | MEDIUM (6) | Information disclosure in the Networking: Cache component. This vulnerability affects Firefox < 143, Firefox ESR < 140.3, Thunderbird < 143, and Thunderbird < 140.3. | LOCAL |
| CVE-2025-10534 | 2025-09-16 13:15:48 | HIGH (8) | Spoofing issue in the Site Permissions component. This vulnerability affects Firefox < 143 and Thunderbird < 143. | NETWORK |
| CVE-2025-10533 | 2025-09-16 13:15:48 | HIGH (9) | Integer overflow in the SVG component. This vulnerability affects Firefox < 143, Firefox ESR < 115.28, Firefox ESR < 140.3, Thunderbird < 143, and Thunderbird < 140.3. | NETWORK |
| CVE-2025-10532 | 2025-09-16 13:15:47 | MEDIUM (7) | Incorrect boundary conditions in the JavaScript: GC component. This vulnerability affects Firefox < 143, Firefox ESR < 140.3, Thunderbird < 143, and Thunderbird < 140.3. | NETWORK |
| CVE-2025-10531 | 2025-09-16 13:15:47 | MEDIUM (5) | Mitigation bypass in the Web Compatibility: Tooling component. This vulnerability affects Firefox < 143 and Thunderbird < 143. | NETWORK |
| CVE-2025-10530 | 2025-09-16 13:15:46 | MEDIUM (7) | Spoofing issue in the WebAuthn component in Firefox for Android. This vulnerability affects Firefox < 143 and Thunderbird < 143. | NETWORK |
| CVE-2025-10529 | 2025-09-16 13:15:46 | MEDIUM (7) | Same-origin policy bypass in the Layout component. This vulnerability affects Firefox < 143, Firefox ESR < 140.3, Thunderbird < 143, and Thunderbird < 140.3. | NETWORK |
| CVE-2025-10528 | 2025-09-16 13:15:45 | HIGH (7) | Sandbox escape due to undefined behavior, invalid pointer in the Graphics: Canvas2D component. This vulnerability affects Firefox < 143, Firefox ESR < 140.3, Thunderbird < 143, and Thunderbird < 140.3. | NETWORK |
| CVE-2025-10527 | 2025-09-16 13:15:44 | HIGH (7) | Sandbox escape due to use-after-free in the Graphics: Canvas2D component. This vulnerability affects Firefox < 143, Firefox ESR < 140.3, Thunderbird < 143, and Thunderbird < 140.3. | NETWORK |
| CVE-2025-1020 | 2025-02-04 14:15:33 | CRITICAL (10) | Memory safety bugs present in Firefox 134 and Thunderbird 134. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 135 and Thunderbird < 135. | NETWORK |
| CVE-2025-1019 | 2025-02-04 14:15:33 | MEDIUM (4) | The z-order of the browser windows could be manipulated to hide the fullscreen notification. This could potentially be leveraged to perform a spoofing attack. This vulnerability affects Firefox < 135 and Thunderbird < 135. | NETWORK |
| CVE-2025-1018 | 2025-02-04 14:15:33 | MEDIUM (5) | The fullscreen notification is prematurely hidden when fullscreen is re-requested quickly by the user. This could have been leveraged to perform a potential spoofing attack. This vulnerability affects Firefox < 135 and Thunderbird < 135. | NETWORK |
| CVE-2025-1017 | 2025-02-04 14:15:33 | CRITICAL (10) | Memory safety bugs present in Firefox 134, Thunderbird 134, Firefox ESR 128.6, and Thunderbird 128.6. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 135, Firefox ESR < 128.7, Thunderbird < 128.7, and Thunderbird < 135. | NETWORK |
| CVE-2025-1016 | 2025-02-04 14:15:32 | CRITICAL (10) | Memory safety bugs present in Firefox 134, Thunderbird 134, Firefox ESR 115.19, Firefox ESR 128.6, Thunderbird 115.19, and Thunderbird 128.6. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 135, Firefox ESR < 115.20, Firefox ESR < 128.7, Thunderbird < 128.7, and Thunderbird < 135. | NETWORK |
| CVE-2025-1014 | 2025-02-04 14:15:32 | HIGH (9) | Certificate length was not properly checked when added to a certificate store. In practice only trusted data was processed. This vulnerability affects Firefox < 135, Firefox ESR < 128.7, Thunderbird < 128.7, and Thunderbird < 135. | NETWORK |
| CVE-2025-1013 | 2025-02-04 14:15:32 | MEDIUM (7) | A race condition could have led to private browsing tabs being opened in normal browsing windows. This could have resulted in a potential privacy leak. This vulnerability affects Firefox < 135, Firefox ESR < 128.7, Thunderbird < 128.7, and Thunderbird < 135. | NETWORK |
| CVE-2025-1012 | 2025-02-04 14:15:32 | HIGH (8) | A race during concurrent delazification could have led to a use-after-free. This vulnerability affects Firefox < 135, Firefox ESR < 115.20, Firefox ESR < 128.7, Thunderbird < 128.7, and Thunderbird < 135. | NETWORK |
| CVE-2025-1011 | 2025-02-04 14:15:32 | HIGH (9) | A bug in WebAssembly code generation could have lead to a crash. It may have been possible for an attacker to leverage this to achieve code execution. This vulnerability affects Firefox < 135, Firefox ESR < 128.7, Thunderbird < 128.7, and Thunderbird < 135. | NETWORK |
| CVE-2025-1010 | 2025-02-04 14:15:32 | HIGH (9) | An attacker could have caused a use-after-free via the Custom Highlight API, leading to a potentially exploitable crash. This vulnerability affects Firefox < 135, Firefox ESR < 115.20, Firefox ESR < 128.7, Thunderbird < 128.7, and Thunderbird < 135. | NETWORK |
| CVE-2025-1009 | 2025-02-04 14:15:32 | CRITICAL (10) | An attacker could have caused a use-after-free via crafted XSLT data, leading to a potentially exploitable crash. This vulnerability affects Firefox < 135, Firefox ESR < 115.20, Firefox ESR < 128.7, Thunderbird < 128.7, and Thunderbird < 135. | NETWORK |
| CVE-2025-0247 | 2025-01-07 16:15:39 | CRITICAL (10) | Memory safety bugs present in Firefox 133 and Thunderbird 133. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 134 and Thunderbird < 134. | NETWORK |
| CVE-2025-0243 | 2025-01-07 16:15:39 | MEDIUM (5) | Memory safety bugs present in Firefox 133, Thunderbird 133, Firefox ESR 128.5, and Thunderbird 128.5. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 134, Firefox ESR < 128.6, Thunderbird < 134, and Thunderbird < 128.6. | LOCAL |
| CVE-2025-0242 | 2025-01-07 16:15:39 | MEDIUM (7) | Memory safety bugs present in Firefox 133, Thunderbird 133, Firefox ESR 115.18, Firefox ESR 128.5, Thunderbird 115.18, and Thunderbird 128.5. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 134, Firefox ESR < 128.6, Firefox ESR < 115.19, Thunderbird < 134, and Thunderbird < 128.6. | NETWORK |
Showing the 500 most recent of 1676 tracked CVEs.
Why keeping Thunderbird patched matters
Unpatched third-party applications are one of the most common ways attackers get in: 57% of breached MSP clients and 32% of ransomware cases trace back to a missing patch. Every Thunderbird release that fixes a security bug is public, so attackers see it too, and an out-of-date install becomes a documented way in. Tracking the installed version on every machine and closing the gap quickly is what turns a disclosed CVE into a non-event.
How Lavawall® patches Thunderbird
Lavawall® watches Thunderbird releases and CVEs continuously, ranks each update by risk, and deploys it across your whole fleet, Windows, macOS, and Linux, from a single agent, independently of your RMM. You get one place to see which machines are behind on Thunderbird, one policy to bring them current, and timestamped evidence for audits.
Frequently asked questions
What is the latest version of Thunderbird?
Lavawall tracks Thunderbird at version 159.0 (last checked 2026-10-28). New releases are monitored continuously and can be deployed automatically across your fleet.
Lavawall tracks Thunderbird at version 159.0 (last checked 2026-10-28). New releases are monitored continuously and can be deployed automatically across your fleet.
Does Thunderbird have known security vulnerabilities (CVEs)?
Lavawall continuously monitors Thunderbird for newly disclosed CVEs and remediates them automatically as they appear.
Lavawall continuously monitors Thunderbird for newly disclosed CVEs and remediates them automatically as they appear.
How do I patch Thunderbird automatically?
Deploy the Lavawall® agent and Thunderbird updates are applied automatically across Windows, macOS, and Linux, risk-ranked and reported, independently of your RMM.
Deploy the Lavawall® agent and Thunderbird updates are applied automatically across Windows, macOS, and Linux, risk-ranked and reported, independently of your RMM.
Lavawall® monitors releases and CVEs for Thunderbird through public information and proprietary statistical analysis, and can patch it automatically across your fleet.