Mozilla Firefox vulnerabilities
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Published CVEs affecting Mozilla Firefox: 606 record(s), with affected versions and fixes.cpe:2.3:a:mozilla:firefox
CVE-2026-92061
Critical · 9.8
CWE-119 Sep 15, 2026
Incorrect boundary conditions in the Security: Process Sandboxing component
Incorrect boundary conditions in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox 156 and Thunderbird 156.
CVE-2026-92060
High · 8.8
CWE-416 Sep 15, 2026
Use-after-free in the Internationalization component
Use-after-free in the Internationalization component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.
CVE-2026-92059
Critical · 9.3
CWE-119 Sep 15, 2026
Incorrect boundary conditions in the DOM: Editor component
Incorrect boundary conditions in the DOM: Editor component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.
CVE-2026-92058
High · 8.8
CWE-416 Sep 15, 2026
Use-after-free in the Graphics component
Use-after-free in the Graphics component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.
CVE-2026-92057
Critical · 9.1
CWE-693 Sep 15, 2026
Mitigation bypass in the Enterprise Policies component
Mitigation bypass in the Enterprise Policies component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.
CVE-2026-92056
High · 8.8
CWE-416 Sep 15, 2026
Use-after-free in the Graphics: Text component
Use-after-free in the Graphics: Text component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.
CVE-2026-92055
High · 8.8
CWE-269 Sep 15, 2026
Privilege escalation in the DevTools component
Privilege escalation in the DevTools component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.
CVE-2026-92054
High · 8.8
CWE-119 Sep 15, 2026
Privilege escalation in the Memory component
Privilege escalation in the Memory component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.
CVE-2026-92053
High · 8.8
CWE-269 Sep 15, 2026
Privilege escalation in the Graphics: CanvasWebGL component
Privilege escalation in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.
CVE-2026-92052
High · 8.8
CWE-457 Sep 15, 2026
Privilege escalation due to uninitialized memory in the Graphics: CanvasWebGL component
Privilege escalation due to uninitialized memory in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.
CVE-2026-92051
Critical · 9.1
CWE-476 Sep 15, 2026
Spoofing issue due to invalid pointer in the Graphics component
Spoofing issue due to invalid pointer in the Graphics component. This vulnerability was fixed in Firefox 156 and Thunderbird 156.
CVE-2026-92050
Critical · 9.1
CWE-362 Sep 15, 2026
Sandbox escape due to race condition in the XPConnect component
Sandbox escape due to race condition in the XPConnect component. This vulnerability was fixed in Firefox 156 and Thunderbird 156.
CVE-2026-92049
High · 8.8
CWE-416 Sep 15, 2026
Use-after-free in the Widget: Win32 component
Use-after-free in the Widget: Win32 component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.
CVE-2026-92048
Critical · 9.0
CWE-119 Sep 15, 2026
Sandbox escape due to incorrect boundary conditions in the Widget: Win32 component
Sandbox escape due to incorrect boundary conditions in the Widget: Win32 component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.
CVE-2026-92047
High · 8.8
CWE-269 Sep 15, 2026
Privilege escalation in the Crash Reporting component
Privilege escalation in the Crash Reporting component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.
CVE-2026-92046
High · 8.8
CWE-416 Sep 15, 2026
Use-after-free in the Graphics component
Use-after-free in the Graphics component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.
CVE-2026-92045
Critical · 9.6
CWE-119 Sep 15, 2026
Sandbox escape due to incorrect boundary conditions in the WebRTC component
Sandbox escape due to incorrect boundary conditions in the WebRTC component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.
CVE-2026-92044
High · 7.5
CWE-200 Sep 15, 2026
Information disclosure in the Networking: HTTP component
Information disclosure in the Networking: HTTP component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.
CVE-2026-92043
High · 8.8
CWE-120 Sep 15, 2026
Privilege escalation due to incorrect boundary conditions in the Audio/Video component
Privilege escalation due to incorrect boundary conditions in the Audio/Video component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.
CVE-2026-92042
High · 7.5
CWE-362 Sep 15, 2026
Race condition in the DOM: Content Processes component
Race condition in the DOM: Content Processes component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.
CVE-2026-92041
Critical · 9.1
CWE-693 Sep 15, 2026
Mitigation bypass in the DOM: Networking component
Mitigation bypass in the DOM: Networking component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.
CVE-2026-92040
High · 8.8
CWE-416 Sep 15, 2026
Use-after-free in the JavaScript: WebAssembly component
Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 156 and Thunderbird 156.
CVE-2026-92039
Medium · 6.3
CWE-693 Sep 15, 2026
Mitigation bypass in the DOM: Notifications component
Mitigation bypass in the DOM: Notifications component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.
CVE-2026-92038
Critical · 9.1
CWE-693 Sep 15, 2026
Mitigation bypass in the Remote Settings Client component
Mitigation bypass in the Remote Settings Client component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.
CVE-2026-92037
Critical · 9.8
CWE-119 Sep 15, 2026
Incorrect boundary conditions in the DOM: Animation component
Incorrect boundary conditions in the DOM: Animation component. This vulnerability was fixed in Firefox 156 and Thunderbird 156.