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Vendor: Mozilla • 3,473 CVEs

CVEs (3,473)

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1Mozilla
2Firefox
Thunderbird
Oct 5, 2026
Sep 15, 2026
N/A· v4
8.8 HIGH· v3
N/A· v2
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.
1Mozilla
2Firefox
Thunderbird
Oct 5, 2026
Sep 15, 2026
N/A· v4
8.8 HIGH· v3
N/A· v2
Privilege escalation in the DevTools component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.
1Mozilla
2Firefox
Thunderbird
Oct 5, 2026
Sep 15, 2026
N/A· v4
8.8 HIGH· v3
N/A· v2
Privilege escalation in the Memory component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.
1Mozilla
2Firefox
Thunderbird
Oct 5, 2026
Sep 15, 2026
N/A· v4
8.8 HIGH· v3
N/A· v2
Privilege escalation in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.
1Mozilla
2Firefox
Thunderbird
Oct 5, 2026
Sep 15, 2026
N/A· v4
8.8 HIGH· v3
N/A· v2
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.
1Mozilla
2Firefox
Thunderbird
Oct 5, 2026
Sep 15, 2026
N/A· v4
9.1 CRITICAL· v3
N/A· v2
Spoofing issue due to invalid pointer in the Graphics component. This vulnerability was fixed in Firefox 156 and Thunderbird 156.
1Mozilla
2Firefox
Thunderbird
Oct 5, 2026
Sep 15, 2026
N/A· v4
9.1 CRITICAL· v3
N/A· v2
Sandbox escape due to race condition in the XPConnect component. This vulnerability was fixed in Firefox 156 and Thunderbird 156.
1Mozilla
2Firefox
Thunderbird
Oct 5, 2026
Sep 15, 2026
N/A· v4
8.8 HIGH· v3
N/A· v2
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.
1Mozilla
2Firefox
Thunderbird
Oct 5, 2026
Sep 15, 2026
N/A· v4
9.0 CRITICAL· v3
N/A· v2
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.
1Mozilla
2Firefox
Thunderbird
Oct 5, 2026
Sep 15, 2026
N/A· v4
8.8 HIGH· v3
N/A· v2
Privilege escalation in the Crash Reporting component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.
1Mozilla
2Firefox
Thunderbird
Oct 5, 2026
Sep 15, 2026
N/A· v4
8.8 HIGH· v3
N/A· v2
Use-after-free in the Graphics component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.
1Mozilla
2Firefox
Thunderbird
Oct 5, 2026
Sep 15, 2026
N/A· v4
9.6 CRITICAL· v3
N/A· v2
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.
1Mozilla
2Firefox
Thunderbird
Oct 5, 2026
Sep 15, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
Information disclosure in the Networking: HTTP component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.
1Mozilla
2Firefox
Thunderbird
Oct 5, 2026
Sep 15, 2026
N/A· v4
8.8 HIGH· v3
N/A· v2
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.
1Mozilla
2Firefox
Thunderbird
Oct 5, 2026
Sep 15, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
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.
1Mozilla
2Firefox
Thunderbird
Oct 5, 2026
Sep 15, 2026
N/A· v4
9.1 CRITICAL· v3
N/A· v2
Mitigation bypass in the DOM: Networking component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.
1Mozilla
2Firefox
Thunderbird
Oct 5, 2026
Sep 15, 2026
N/A· v4
8.8 HIGH· v3
N/A· v2
Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 156 and Thunderbird 156.
1Mozilla
2Firefox
Thunderbird
Oct 5, 2026
Sep 15, 2026
N/A· v4
6.3 MEDIUM· v3
N/A· v2
Mitigation bypass in the DOM: Notifications component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.
1Mozilla
2Firefox
Thunderbird
Oct 5, 2026
Sep 15, 2026
N/A· v4
9.1 CRITICAL· v3
N/A· v2
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.
1Mozilla
2Firefox
Thunderbird
Oct 5, 2026
Sep 15, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Incorrect boundary conditions in the DOM: Animation component. This vulnerability was fixed in Firefox 156 and Thunderbird 156.