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Vendor: Mozilla • 3,473 CVEs

CVEs (3,473)

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1Mozilla
2Firefox
Thunderbird
Oct 5, 2026
Sep 29, 2026
N/A· v4
6.5 MEDIUM· v3
N/A· v2
Denial-of-service in the Graphics component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157.
1Mozilla
2Firefox
Thunderbird
Oct 5, 2026
Sep 29, 2026
N/A· v4
9.6 CRITICAL· v3
N/A· v2
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.
1Mozilla
2Firefox
Thunderbird
Oct 5, 2026
Sep 29, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Other issue in the DevTools component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.
1Mozilla
2Firefox
Thunderbird
Oct 5, 2026
Sep 29, 2026
N/A· v4
8.1 HIGH· v3
N/A· v2
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.
1Mozilla
2Firefox
Thunderbird
Oct 5, 2026
Sep 29, 2026
N/A· v4
8.8 HIGH· v3
N/A· v2
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.
1Mozilla
2Firefox
Thunderbird
Oct 19, 2026
Sep 29, 2026
N/A· v4
8.8 HIGH· v3
N/A· v2
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.
1Mozilla
2Firefox
Thunderbird
Oct 19, 2026
Sep 29, 2026
N/A· v4
4.3 MEDIUM· v3
N/A· v2
Uninitialized memory in the Graphics: WebGPU component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157.
1Mozilla
2Firefox
Thunderbird
Oct 19, 2026
Sep 29, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
Race condition, use-after-free in the Audio/Video component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.
1Mozilla
2Firefox
Thunderbird
Oct 19, 2026
Sep 29, 2026
N/A· v4
9.6 CRITICAL· v3
N/A· v2
Sandbox escape due to use-after-free in the Preferences: Backend component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.
1Mozilla
2Firefox
Thunderbird
Oct 19, 2026
Sep 29, 2026
N/A· v4
8.1 HIGH· v3
N/A· v2
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...Show more
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.Show less
1Mozilla
2Firefox
Thunderbird
Oct 19, 2026
Sep 29, 2026
N/A· v4
4.3 MEDIUM· v3
N/A· v2
Uninitialized memory in the Graphics: WebGPU component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.
1Mozilla
2Firefox
Thunderbird
Oct 19, 2026
Sep 29, 2026
N/A· v4
8.8 HIGH· v3
N/A· v2
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.
1Mozilla
2Firefox
Thunderbird
Oct 19, 2026
Sep 29, 2026
N/A· v4
9.6 CRITICAL· v3
N/A· v2
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.
1Mozilla
2Firefox
Thunderbird
Oct 19, 2026
Sep 29, 2026
N/A· v4
4.3 MEDIUM· v3
N/A· v2
Uninitialized memory in the Graphics: WebGPU component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.
1Mozilla
2Firefox
Thunderbird
Oct 19, 2026
Sep 29, 2026
N/A· v4
8.1 HIGH· v3
N/A· v2
Cryptography misuse in Storage: Quota Manager component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157.
1Mozilla
2Firefox
Thunderbird
Oct 19, 2026
Sep 29, 2026
N/A· v4
8.8 HIGH· v3
N/A· v2
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,...Show more
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.Show less
1Mozilla
2Firefox
Thunderbird
Oct 19, 2026
Sep 29, 2026
N/A· v4
8.8 HIGH· v3
N/A· v2
Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.
1Mozilla
2Firefox
Thunderbird
Oct 19, 2026
Sep 29, 2026
N/A· v4
6.5 MEDIUM· v3
N/A· v2
Denial-of-service in the Networking component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.
1Mozilla
2Firefox
Thunderbird
Oct 19, 2026
Sep 29, 2026
N/A· v4
9.6 CRITICAL· v3
N/A· v2
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 Firef...Show more
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.Show less
1Mozilla
2Firefox
Thunderbird
Oct 19, 2026
Sep 29, 2026
N/A· v4
6.5 MEDIUM· v3
N/A· v2
JIT miscompilation in the JavaScript Engine component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.