Mozilla

CVE VENDORS PRODUCTS UPDATED PUBLISHED CVSS
CVE-2026-100814 1Mozilla 2Firefox Thunderbird Oct 5, 2026 Sep 29, 2026 N/A· v4 8.8 HIGH· v3 N/A· v2 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.
CVE-2026-100813 1Mozilla 2Firefox Thunderbird Oct 5, 2026 Sep 29, 2026 N/A· v4 8.8 HIGH· v3 N/A· v2 Invalid pointer in the JavaScript Engine: JIT component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.
CVE-2026-100812 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.
CVE-2026-100811 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.
CVE-2026-100810 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.
CVE-2026-100809 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.
CVE-2026-100808 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.
CVE-2026-100807 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.
CVE-2026-100806 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.
CVE-2026-100805 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.
CVE-2026-100804 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.
CVE-2026-100803 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
CVE-2026-100802 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.
CVE-2026-100801 1Mozilla 2Firefox Thunderbird Oct 27, 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 159, Firefox ESR 153.6, Thunderbird 159, Thunderbird...Show more 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 159, Firefox ESR 153.6, Thunderbird 159, Thunderbird 153.6, Firefox 157, and Firefox ESR 140.17.Show less
CVE-2026-100800 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.
CVE-2026-100799 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.
CVE-2026-100798 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.
CVE-2026-100797 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
CVE-2026-100796 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.
CVE-2026-100795 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.

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