Patch & vulnerability status
Firefox 159.0
Latest tracked version 159.0. Release status, tracked CVEs, and automated cross-platform patching for Firefox.
| Platform | Latest version | CVEs tracked | Last checked |
|---|---|---|---|
| Linux | 159.0 | 0 | 2026-10-28 |
| Mac | 159.0 | 0 | 2026-10-28 |
| Windows | 159.0 | 2903 | 2026-10-28 |
Known vulnerabilities (CVEs) in Firefox
Lavawall tracks 2903 published CVEs affecting Firefox, 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-2026-9309 | 2026-06-01 13:16:34 | MEDIUM (5) | Firefox for iOS Reader View did not properly escape HTML tags in JSON-LD metadata. A malicious page could inject markup that changed Reader View behavior and leaked sensitive URL parameters. These parameters could then be used to access internal pages, potentially resulting in arbitrary JavaScript execution in an internal origin. This vulnerability was fixed in Firefox for iOS 151.2. | NETWORK |
| CVE-2026-9308 | 2026-06-01 13:16:34 | MEDIUM (5) | Firefox for iOS Reader View replaced page content in its HTML template before replacing other internal placeholders. A malicious page could include a placeholder string that was later substituted with JSON-LD data, potentially resulting in arbitrary JavaScript execution. This vulnerability was fixed in Firefox for iOS 151.2. | NETWORK |
| CVE-2026-9078 | 2026-05-25 15:16:23 | MEDIUM (5) | Firefox for iOS displayed specially crafted right-to-left (RTL) and internationalized domain names (IDNs) incorrectly in link preview UI surfaces. A crafted RTL hostname could visually reorder portions of the displayed domain, causing attacker-controlled sites to appear as trusted origins. This vulnerability was fixed in Firefox for iOS 151.1. | 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-2026-8951 | 2026-05-19 14:16:51 | MEDIUM (7) | Spoofing issue in the Toolbar component in Firefox for Android. This vulnerability was fixed in Firefox 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-2026-8945 | 2026-05-19 14:16:51 | HIGH (8) | Sandbox escape in Firefox and Firefox Focus for Android. This vulnerability was fixed in Firefox 151. | NETWORK |
| CVE-2026-8706 | 2026-05-19 16:16:23 | MEDIUM (7) | Firefox for iOS hosted Reader mode on an unauthenticated local web server, allowing another application on the same device to request arbitrary URLs and receive the response rendered with the signed-in user's cookies. This vulnerability was fixed in Firefox for iOS 151.0. | ADJACENT_NETWORK |
| CVE-2026-8401 | 2026-05-12 15:16:20 | CRITICAL (10) | Sandbox escape in the Profile Backup component. This vulnerability was fixed in Firefox 150.0.3. | NETWORK |
| CVE-2026-8391 | 2026-05-12 14:17:12 | MEDIUM (5) | Other issue in the JavaScript Engine component. This vulnerability was fixed in Firefox 150.0.3. | NETWORK |
| CVE-2026-8390 | 2026-05-12 14:17:12 | HIGH (7) | Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 150.0.3. | NETWORK |
| CVE-2026-8389 | 2026-05-12 14:17:12 | HIGH (9) | JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 150.0.3. | NETWORK |
| CVE-2026-8388 | 2026-05-12 14:17:12 | MEDIUM (7) | Incorrect boundary conditions in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 150.0.3. | 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-2026-6756 | 2026-04-21 13:16:22 | HIGH (8) | Mitigation bypass in Firefox for Android. This vulnerability was fixed in Firefox 150. | 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-2026-5733 | 2026-04-07 13:16:48 | HIGH (9) | Incorrect boundary conditions in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 149.0.2 and Thunderbird 149.0.2. | NETWORK |
| CVE-2026-5732 | 2026-04-07 13:16:47 | HIGH (9) | Incorrect boundary conditions, integer overflow in the Graphics: Text component. 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-2026-4725 | 2026-03-24 13:16:08 | CRITICAL (10) | Sandbox escape due to use-after-free in the Graphics: Canvas2D 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-2026-4723 | 2026-03-24 13:16:08 | CRITICAL (10) | Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 149 and Thunderbird 149. | NETWORK |
| CVE-2026-4722 | 2026-03-24 13:16:08 | HIGH (9) | Privilege escalation in the IPC 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-2026-4719 | 2026-03-24 13:16:08 | HIGH (8) | Incorrect boundary conditions in the Graphics: Text component. 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-2026-4717 | 2026-03-24 13:16:08 | CRITICAL (10) | Privilege escalation in the Netmonitor component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | NETWORK |
| CVE-2026-4716 | 2026-03-24 13:16:08 | CRITICAL (9) | Incorrect boundary conditions, uninitialized memory in the JavaScript Engine component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | NETWORK |
| CVE-2026-4715 | 2026-03-24 13:16:07 | CRITICAL (9) | Uninitialized memory in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | NETWORK |
| CVE-2026-4714 | 2026-03-24 13:16:07 | HIGH (8) | 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-2026-4713 | 2026-03-24 13:16:07 | HIGH (8) | Incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | NETWORK |
| CVE-2026-4712 | 2026-03-24 13:16:07 | HIGH (8) | Information disclosure in the Widget: Cocoa component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | NETWORK |
| CVE-2026-4711 | 2026-03-24 13:16:07 | CRITICAL (10) | Use-after-free in the Widget: Cocoa 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-2026-4709 | 2026-03-24 13:16:07 | HIGH (8) | Incorrect boundary conditions in the Audio/Video: GMP component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | NETWORK |
| CVE-2026-4708 | 2026-03-24 13:16:07 | HIGH (8) | Incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | NETWORK |
| CVE-2026-4707 | 2026-03-24 13:16:07 | HIGH (8) | Incorrect boundary conditions in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | NETWORK |
| CVE-2026-4706 | 2026-03-24 13:16:07 | HIGH (8) | Incorrect boundary conditions in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | NETWORK |
| CVE-2026-4705 | 2026-03-24 13:16:06 | CRITICAL (10) | 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-2026-4704 | 2026-03-24 13:16:06 | HIGH (8) | Denial-of-service in the WebRTC: Signaling component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | NETWORK |
| CVE-2026-4702 | 2026-03-24 13:16:06 | CRITICAL (10) | JIT miscompilation in the JavaScript Engine component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | NETWORK |
| CVE-2026-4701 | 2026-03-24 13:16:06 | CRITICAL (10) | Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | NETWORK |
| CVE-2026-4700 | 2026-03-24 13:16:06 | CRITICAL (10) | Mitigation bypass in the Networking: HTTP component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | NETWORK |
| CVE-2026-4699 | 2026-03-24 13:16:06 | HIGH (8) | Incorrect boundary conditions in the Layout: Text and Fonts component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | NETWORK |
| CVE-2026-4698 | 2026-03-24 13:16:06 | CRITICAL (10) | JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | NETWORK |
| CVE-2026-4697 | 2026-03-24 13:16:06 | HIGH (8) | Incorrect boundary conditions in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | NETWORK |
| CVE-2026-4696 | 2026-03-24 13:16:06 | CRITICAL (10) | Use-after-free in the Layout: Text and Fonts component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | NETWORK |
| CVE-2026-4695 | 2026-03-24 13:16:05 | HIGH (8) | Incorrect boundary conditions in the Audio/Video: Web Codecs 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-2026-4693 | 2026-03-24 13:16:05 | HIGH (8) | Incorrect boundary conditions in the Audio/Video: Playback 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-2026-4691 | 2026-03-24 13:16:05 | CRITICAL (10) | Use-after-free in the CSS Parsing and Computation component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | NETWORK |
| CVE-2026-4690 | 2026-03-24 13:16:05 | HIGH (9) | 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-2026-4689 | 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-2026-4688 | 2026-03-24 13:16:05 | CRITICAL (10) | Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | NETWORK |
| CVE-2026-4687 | 2026-03-24 13:16:05 | HIGH (9) | Sandbox escape due to incorrect boundary conditions in the Telemetry component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | NETWORK |
| CVE-2026-4686 | 2026-03-24 13:16:04 | HIGH (8) | Incorrect boundary conditions in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | NETWORK |
| CVE-2026-4685 | 2026-03-24 13:16:04 | HIGH (8) | Incorrect boundary conditions in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | NETWORK |
| CVE-2026-4684 | 2026-03-24 13:16:04 | HIGH (8) | Race condition, use-after-free in the Graphics: WebRender component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | NETWORK |
| CVE-2026-45173 | 2026-06-11 22:16:57 | HIGH (8) | Idira Identity Browser Extension (Chrome, Firefox, and Edge builds) versions prior to 26.8.1 exhibit an origin validation flaw within its internal web-page verification routines. If an authenticated user navigates to a specially crafted webpage, this interaction could potentially allow a remote attacker to trigger unauthorized application interaction or execution parameters within the context of that authenticated browser session. CyberArk Security Bulletin: CA26-21 | NETWORK |
| CVE-2026-3847 | 2026-03-10 18:19:06 | HIGH (9) | Memory safety bugs present in Firefox 148.0.2. 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 148.0.2. | NETWORK |
| CVE-2026-3846 | 2026-03-10 18:19:06 | MEDIUM (7) | Same-origin policy bypass in the CSS Parsing and Computation component. This vulnerability was fixed in Firefox 148.0.2. | NETWORK |
| CVE-2026-3845 | 2026-03-10 18:19:06 | HIGH (9) | Heap buffer overflow in the Audio/Video: Playback component in Firefox for Android. This vulnerability was fixed in Firefox 148.0.2. | 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-2026-2794 | 2026-02-24 14:16:28 | HIGH (8) | Information disclosure due to uninitialized memory in Firefox and Firefox Focus for Android. This vulnerability was fixed in Firefox 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-2026-2634 | 2026-02-24 14:16:24 | CRITICAL (10) | Malicious scripts could cause desynchronization between the address bar and web content before a response is received in Firefox iOS, allowing attacker-controlled pages to be presented under spoofed domains. This vulnerability was fixed in Firefox for iOS 147.4. | NETWORK |
| CVE-2026-24869 | 2026-01-27 16:16:36 | HIGH (9) | Use-after-free in the Layout: Scrolling and Overflow component. This vulnerability was fixed in Firefox 147.0.2. | NETWORK |
| CVE-2026-24868 | 2026-01-27 16:16:36 | MEDIUM (7) | Mitigation bypass in the Privacy: Anti-Tracking component. This vulnerability was fixed in Firefox 147.0.2. | 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-2026-2032 | 2026-02-16 15:18:35 | MEDIUM (4) | Malicious scripts that interrupt new tab page loading could cause desynchronization between the address bar and page content, allowing the attacker to spoof arbitrary HTML under a trusted domain. This vulnerability was fixed in Firefox for iOS 147.2.1. | NETWORK |
| CVE-2026-16412 | 2026-07-21 13:17:17 | CRITICAL (10) | Memory safety bugs present in 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 140.13, Thunderbird 153, and Thunderbird 140.13. | NETWORK |
| CVE-2026-16411 | 2026-07-21 13:17:17 | CRITICAL (10) | Memory safety bugs present in 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 and Thunderbird 153. | 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-2026-16408 | 2026-07-21 13:17:16 | CRITICAL (10) | Integer overflow in the Audio/Video: Playback 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-2026-16406 | 2026-07-21 13:17:16 | CRITICAL (9) | Mitigation bypass in the Networking component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | NETWORK |
| CVE-2026-16405 | 2026-07-21 13:17:16 | HIGH (8) | Information disclosure in the Networking: WebSockets component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | 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-2026-16397 | 2026-07-21 13:17:15 | MEDIUM (7) | Clickjacking issue in the WebExtensions component in Firefox for Android. This vulnerability was fixed in Firefox 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-2026-16395 | 2026-07-21 13:17:15 | CRITICAL (10) | Integer overflow in the Audio/Video component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | NETWORK |
| CVE-2026-16394 | 2026-07-21 13:17:15 | CRITICAL (9) | Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | 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-2026-15719 | 2026-07-14 13:18:20 | MEDIUM (5) | We are aware that exploit code for this is public however we are not aware of any attacks in the wild abusing this flaw. This vulnerability was fixed in Firefox 152.0.6, Firefox ESR 115.38, Firefox ESR 140.13, and Thunderbird 140.13. | NETWORK |
| CVE-2026-15718 | 2026-07-14 13:18:20 | MEDIUM (4) | We are aware that exploit code for this is public however we are not aware of any attacks in the wild abusing this flaw. This vulnerability was fixed in Firefox 152.0.6, Firefox ESR 140.13, and Thunderbird 140.13. | NETWORK |
| CVE-2026-14241 | 2026-06-30 14:16:26 | CRITICAL (10) | Memory safety bugs present in Firefox 152.0.3. 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 152.0.4. | NETWORK |
| CVE-2026-13356 | 2026-07-07 00:16:34 | MEDIUM (6) | A malicious webpage could interrupt a pending navigation by enqueuing a synchronous JavaScript dialog, causing the browser UI to display the destination origin in the address bar while continuing to render attacker-controlled content. This vulnerability was fixed in Firefox for iOS 152.3. | 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-2026-10702 | 2026-06-02 20:16:33 | MEDIUM (4) | JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 151.0.3. | NETWORK |
| CVE-2026-10701 | 2026-06-02 20:16:33 | HIGH (8) | Incorrect boundary conditions in the Graphics: Text component. This vulnerability was fixed in Firefox 151.0.3. | NETWORK |
| CVE-2026-106016 | 2026-10-06 13:16:47 | CRITICAL (10) | Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox 157.0.1 and Thunderbird 158. | 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-2025-9186 | 2025-08-19 21:15:31 | MEDIUM (7) | Spoofing issue in the Address Bar component of Firefox Focus for Android. This vulnerability affects Firefox < 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-2025-9183 | 2025-08-19 21:15:31 | MEDIUM (7) | Spoofing issue in the Address Bar component. This vulnerability affects Firefox < 142 and Firefox ESR < 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-2025-8364 | 2025-08-19 21:15:30 | MEDIUM (4) | A crafted URL using a blob: URI could have hidden the true origin of the page, resulting in a potential spoofing attack. *Note: This issue only affected Android operating systems. Other operating systems are unaffected.* This vulnerability affects Firefox < 141. | 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-2025-8042 | 2025-08-19 21:15:29 | CRITICAL (10) | Firefox for Android allowed a sandboxed iframe without the `allow-downloads` attribute to start downloads. This vulnerability affects Firefox < 141. | NETWORK |
| CVE-2025-8041 | 2025-08-19 21:15:29 | MEDIUM (5) | In the address bar, Firefox for Android truncated the display of URLs from the end instead of prioritizing the origin. This vulnerability affects Firefox < 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-2025-6434 | 2025-06-24 13:15:24 | MEDIUM (4) | The exception page for the HTTPS-Only feature, displayed when a website is opened via HTTP, lacked an anti-clickjacking delay, potentially allowing an attacker to trick a user into granting an exception and loading a webpage over HTTP. This vulnerability affects Firefox < 140 and Thunderbird < 140. | NETWORK |
| CVE-2025-6433 | 2025-06-24 13:15:24 | CRITICAL (10) | If a user visited a webpage with an invalid TLS certificate, and granted an exception, the webpage was able to provide a WebAuthn challenge that the user would be prompted to complete. This is in violation of the WebAuthN spec which requires "a secure transport established without errors". This vulnerability affects Firefox < 140 and Thunderbird < 140. | NETWORK |
| CVE-2025-6432 | 2025-06-24 13:15:24 | HIGH (9) | When Multi-Account Containers was enabled, DNS requests could have bypassed a SOCKS proxy when the domain name was invalid or the SOCKS proxy was not responding. This vulnerability affects Firefox < 140 and Thunderbird < 140. | NETWORK |
| CVE-2025-6431 | 2025-06-24 13:15:24 | MEDIUM (7) | When a link can be opened in an external application, Firefox for Android will, by default, prompt the user before doing so. An attacker could have bypassed this prompt, potentially exposing the user to security vulnerabilities or privacy leaks in external applications. *This bug only affects Firefox for Android. Other versions of Firefox are unaffected.* This vulnerability affects Firefox < 140. | NETWORK |
| CVE-2025-6430 | 2025-06-24 13:15:24 | MEDIUM (6) | When a file download is specified via the `Content-Disposition` header, that directive would be ignored if the file was included via a `<embed>` or `<object>` tag, potentially making a website vulnerable to a cross-site scripting attack. This vulnerability affects Firefox < 140, Firefox ESR < 128.12, Thunderbird < 140, and Thunderbird < 128.12. | NETWORK |
| CVE-2025-6429 | 2025-06-24 13:15:24 | MEDIUM (7) | Firefox could have incorrectly parsed a URL and rewritten it to the youtube.com domain when parsing the URL specified in an `embed` tag. This could have bypassed website security checks that restricted which domains users were allowed to embed. This vulnerability affects Firefox < 140, Firefox ESR < 128.12, Thunderbird < 140, and Thunderbird < 128.12. | NETWORK |
| CVE-2025-6428 | 2025-06-24 13:15:24 | MEDIUM (4) | When a URL was provided in a link querystring parameter, Firefox for Android would follow that URL instead of the correct URL, potentially leading to phishing attacks. *This bug only affects Firefox for Android. Other versions of Firefox are unaffected.* This vulnerability affects Firefox < 140. | NETWORK |
| CVE-2025-6427 | 2025-06-24 13:15:24 | CRITICAL (9) | An attacker was able to bypass the `connect-src` directive of a Content Security Policy by manipulating subdocuments. This would have also hidden the connections from the Network tab in Devtools. This vulnerability affects Firefox < 140 and Thunderbird < 140. | NETWORK |
| CVE-2025-6426 | 2025-06-24 13:15:24 | HIGH (9) | The executable file warning did not warn users before opening files with the `terminal` extension. *This bug only affects Firefox for macOS. Other versions of Firefox are unaffected.* This vulnerability affects Firefox < 140, Firefox ESR < 128.12, Thunderbird < 140, and Thunderbird < 128.12. | NETWORK |
| CVE-2025-6425 | 2025-06-24 13:15:23 | MEDIUM (4) | An attacker who enumerated resources from the WebCompat extension could have obtained a persistent UUID that identified the browser, and persisted between containers and normal/private browsing mode, but not profiles. This vulnerability affects Firefox < 140, Firefox ESR < 115.25, Firefox ESR < 128.12, Thunderbird < 140, and Thunderbird < 128.12. | NETWORK |
| CVE-2025-6424 | 2025-06-24 13:15:23 | CRITICAL (10) | A use-after-free in FontFaceSet resulted in a potentially exploitable crash. This vulnerability affects Firefox < 140, Firefox ESR < 115.25, Firefox ESR < 128.12, Thunderbird < 140, and Thunderbird < 128.12. | NETWORK |
| CVE-2025-55031 | 2025-08-19 21:15:28 | CRITICAL (10) | Malicious pages could use Firefox for iOS to pass FIDO: links to the OS and trigger the hybrid passkey transport. An attacker within Bluetooth range could have used this to trick the user into using their passkey to log the attacker's computer into the target account. This vulnerability affects Firefox for iOS < 142 and Focus for iOS < 142. | NETWORK |
Showing the 500 most recent of 2903 tracked CVEs.
Why keeping Firefox 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 Firefox 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 Firefox
Lavawall® watches Firefox 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 Firefox, one policy to bring them current, and timestamped evidence for audits.
Frequently asked questions
What is the latest version of Firefox?
Lavawall tracks Firefox at version 159.0 (last checked 2026-10-28). New releases are monitored continuously and can be deployed automatically across your fleet.
Lavawall tracks Firefox at version 159.0 (last checked 2026-10-28). New releases are monitored continuously and can be deployed automatically across your fleet.
Does Firefox have known security vulnerabilities (CVEs)?
Lavawall continuously monitors Firefox for newly disclosed CVEs and remediates them automatically as they appear.
Lavawall continuously monitors Firefox for newly disclosed CVEs and remediates them automatically as they appear.
How do I patch Firefox automatically?
Deploy the Lavawall® agent and Firefox updates are applied automatically across Windows, macOS, and Linux, risk-ranked and reported, independently of your RMM.
Deploy the Lavawall® agent and Firefox updates are applied automatically across Windows, macOS, and Linux, risk-ranked and reported, independently of your RMM.
Lavawall® monitors releases and CVEs for Firefox through public information and proprietary statistical analysis, and can patch it automatically across your fleet.