Firefox

firefox

Vendor: Mozilla • 3,181 CVEs

CVEs (3,181)

CVE VENDORS PRODUCTS UPDATED PUBLISHED CVSS
CVE-2026-2799 1Mozilla 2Firefox Thunderbird Jul 15, 2026 Feb 24, 2026 N/A· v4 9.8 CRITICAL· v3 N/A· v2 Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 148 and Thunderbird 148.
CVE-2026-2798 1Mozilla 2Firefox Thunderbird Jul 15, 2026 Feb 24, 2026 N/A· v4 8.8 HIGH· v3 N/A· v2 Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 148 and Thunderbird 148.
CVE-2026-2797 1Mozilla 2Firefox Thunderbird Jul 15, 2026 Feb 24, 2026 N/A· v4 9.8 CRITICAL· v3 N/A· v2 Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 148 and Thunderbird 148.
CVE-2026-2796 1Mozilla 2Firefox Thunderbird Jul 15, 2026 Feb 24, 2026 N/A· v4 9.8 CRITICAL· v3 N/A· v2 JIT miscompilation in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 148 and Thunderbird 148.
CVE-2026-2795 1Mozilla 2Firefox Thunderbird Jul 15, 2026 Feb 24, 2026 N/A· v4 9.8 CRITICAL· v3 N/A· v2 Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 148 and Thunderbird 148.
CVE-2026-2794 1Mozilla 1Firefox Jul 15, 2026 Feb 24, 2026 N/A· v4 7.5 HIGH· v3 N/A· v2 Information disclosure due to uninitialized memory in Firefox and Firefox Focus for Android. This vulnerability was fixed in Firefox 148.
CVE-2026-2793 1Mozilla 2Firefox Thunderbird Jul 15, 2026 Feb 24, 2026 N/A· v4 9.8 CRITICAL· v3 N/A· v2 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...Show more 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.Show less
CVE-2026-2792 1Mozilla 2Firefox Thunderbird Jul 15, 2026 Feb 24, 2026 N/A· v4 9.8 CRITICAL· v3 N/A· v2 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...Show more 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.Show less
CVE-2026-2791 1Mozilla 2Firefox Thunderbird Jun 17, 2026 Feb 24, 2026 N/A· v4 9.8 CRITICAL· v3 N/A· v2 Mitigation bypass in the Networking: Cache component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
CVE-2026-2790 1Mozilla 2Firefox Thunderbird Jun 17, 2026 Feb 24, 2026 N/A· v4 9.8 CRITICAL· v3 N/A· v2 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.
CVE-2026-2789 1Mozilla 2Firefox Thunderbird Jun 17, 2026 Feb 24, 2026 N/A· v4 9.8 CRITICAL· v3 N/A· v2 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.
CVE-2026-2788 1Mozilla 2Firefox Thunderbird Jun 17, 2026 Feb 24, 2026 N/A· v4 9.8 CRITICAL· v3 N/A· v2 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.
CVE-2026-2787 1Mozilla 2Firefox Thunderbird Jun 17, 2026 Feb 24, 2026 N/A· v4 9.8 CRITICAL· v3 N/A· v2 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.
CVE-2026-2786 1Mozilla 2Firefox Thunderbird Jun 17, 2026 Feb 24, 2026 N/A· v4 9.8 CRITICAL· v3 N/A· v2 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.
CVE-2026-2785 1Mozilla 2Firefox Thunderbird Jun 17, 2026 Feb 24, 2026 N/A· v4 9.8 CRITICAL· v3 N/A· v2 Invalid pointer in the JavaScript Engine component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
CVE-2026-2784 1Mozilla 2Firefox Thunderbird Jun 17, 2026 Feb 24, 2026 N/A· v4 9.8 CRITICAL· v3 N/A· v2 Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
CVE-2026-2783 1Mozilla 2Firefox Thunderbird Jun 17, 2026 Feb 24, 2026 N/A· v4 7.5 HIGH· v3 N/A· v2 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.
CVE-2026-2782 1Mozilla 2Firefox Thunderbird Jun 17, 2026 Feb 24, 2026 N/A· v4 9.8 CRITICAL· v3 N/A· v2 Privilege escalation in the Netmonitor component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
CVE-2026-2781 1Mozilla 2Firefox Thunderbird Jun 17, 2026 Feb 24, 2026 N/A· v4 9.8 CRITICAL· v3 N/A· v2 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.
CVE-2026-2780 1Mozilla 2Firefox Thunderbird Jun 17, 2026 Feb 24, 2026 N/A· v4 9.8 CRITICAL· v3 N/A· v2 Privilege escalation in the Netmonitor component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.

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