Firefox

firefox

Vendor: Mozilla • 3,269 CVEs

CVEs (3,269)

CVE VENDORS PRODUCTS UPDATED PUBLISHED CVSS
CVE-2026-74934 1Mozilla 2Firefox Thunderbird Aug 24, 2026 Aug 18, 2026 N/A· v4 7.5 HIGH· v3 N/A· v2 Site isolation issue in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 15...Show more Site isolation issue in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1.Show less
CVE-2026-16392 1Mozilla 2Firefox Thunderbird Aug 6, 2026 Jul 21, 2026 N/A· v4 9.1 CRITICAL· v3 N/A· v2 JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.
CVE-2026-16389 1Mozilla 2Firefox Thunderbird Aug 10, 2026 Jul 21, 2026 N/A· v4 9.8 CRITICAL· v3 N/A· v2 Incorrect boundary conditions, integer overflow in the Libraries component in NSS. This vulnerability was fixed in Firefox 153 and Thunderbird 153.
CVE-2026-16386 1Mozilla 2Firefox Thunderbird Jul 27, 2026 Jul 21, 2026 N/A· v4 7.5 HIGH· v3 N/A· v2 Information disclosure due to uninitialized memory in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.
CVE-2026-16385 1Mozilla 2Firefox Thunderbird Jul 27, 2026 Jul 21, 2026 N/A· v4 7.5 HIGH· v3 N/A· v2 Information disclosure due to uninitialized memory in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.
CVE-2026-16384 1Mozilla 2Firefox Thunderbird Jul 27, 2026 Jul 21, 2026 N/A· v4 7.5 HIGH· v3 N/A· v2 Information disclosure due to uninitialized memory in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.
CVE-2026-16371 1Mozilla 2Firefox Thunderbird Sep 1, 2026 Jul 21, 2026 N/A· v4 8.8 HIGH· v3 N/A· v2 Privilege escalation in the DOM: Navigation component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, Thunderbird 140.13, Firefox ESR 140.15, and Thunderbird 140.15.
CVE-2026-16365 1Mozilla 2Firefox Thunderbird Sep 1, 2026 Jul 21, 2026 N/A· v4 8.8 HIGH· v3 N/A· v2 Privilege escalation in the DOM: Workers component. This vulnerability was fixed in Firefox 153, Thunderbird 153, Firefox ESR 140.15, and Thunderbird 140.15.
CVE-2026-15719 1Mozilla 1Firefox Jul 22, 2026 Jul 14, 2026 N/A· v4 5.4 MEDIUM· v3 N/A· v2 We are aware that exploit code for this is public however we are not aware of any attacks in the wild abusing this flaw. This vulnerability was fixed in Firefox 152.0.6, Firefox ESR 115.38, Firefox ESR 140.13, and Thunde...Show more We are aware that exploit code for this is public however we are not aware of any attacks in the wild abusing this flaw. This vulnerability was fixed in Firefox 152.0.6, Firefox ESR 115.38, Firefox ESR 140.13, and Thunderbird 140.13.Show less
CVE-2026-15718 1Mozilla 1Firefox Jul 22, 2026 Jul 14, 2026 N/A· v4 4.3 MEDIUM· v3 N/A· v2 We are aware that exploit code for this is public however we are not aware of any attacks in the wild abusing this flaw. This vulnerability was fixed in Firefox 152.0.6, Firefox ESR 140.13, and Thunderbird 140.13.
CVE-2026-13356 1Mozilla 1Firefox Jul 8, 2026 Jul 7, 2026 N/A· v4 6.3 MEDIUM· v3 N/A· v2 A malicious webpage could interrupt a pending navigation by enqueuing a synchronous JavaScript dialog, causing the browser UI to display the destination origin in the address bar while continuing to render attacker-contr...Show more A malicious webpage could interrupt a pending navigation by enqueuing a synchronous JavaScript dialog, causing the browser UI to display the destination origin in the address bar while continuing to render attacker-controlled content. This vulnerability was fixed in Firefox for iOS 152.3.Show less
CVE-2026-14241 1Mozilla 1Firefox Jul 6, 2026 Jun 30, 2026 N/A· v4 9.8 CRITICAL· v3 N/A· v2 Memory safety bugs present in Firefox 152.0.3. 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 vulnerabil...Show more Memory safety bugs present in Firefox 152.0.3. 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 152.0.4.Show less
CVE-2026-12330 1Mozilla 2Firefox Thunderbird Jun 17, 2026 Jun 16, 2026 N/A· v4 5.4 MEDIUM· v3 N/A· v2 Incorrect boundary conditions in the Internationalization component. This vulnerability was fixed in Firefox ESR 140.12, Firefox ESR 115.37, and Thunderbird 140.12.
CVE-2026-12329 1Mozilla 2Firefox Thunderbird Jul 15, 2026 Jun 16, 2026 N/A· v4 7.5 HIGH· v3 N/A· v2 Memory safety bug fixed in Thunderbird ESR 140.12. This vulnerability was fixed in Firefox ESR 140.12 and Thunderbird 140.12.
CVE-2026-12328 1Mozilla 2Firefox Thunderbird Jul 15, 2026 Jun 16, 2026 N/A· v4 8.1 HIGH· v3 N/A· v2 Memory safety bugs present in Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird ESR 140.11, Firefox 151 and Thunderbird 151. Some of these bugs showed evidence of memory corruption and we presume that with enough effor...Show more Memory safety bugs present in Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird ESR 140.11, Firefox 151 and Thunderbird 151. 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 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.Show less
CVE-2026-12327 1Mozilla 2Firefox Thunderbird Jun 17, 2026 Jun 16, 2026 N/A· v4 8.1 HIGH· v3 N/A· v2 Memory safety bugs present in Firefox ESR 140.11, Thunderbird ESR 140.11, Firefox 151 and Thunderbird 151. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these coul...Show more Memory safety bugs present in Firefox ESR 140.11, Thunderbird ESR 140.11, Firefox 151 and Thunderbird 151. 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 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.Show less
CVE-2026-12326 1Mozilla 2Firefox Thunderbird Jul 15, 2026 Jun 16, 2026 N/A· v4 8.1 HIGH· v3 N/A· v2 Memory safety bugs present in Firefox 151 and Thunderbird 151. 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....Show more Memory safety bugs present in Firefox 151 and Thunderbird 151. 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 152 and Thunderbird 152.Show less
CVE-2026-12325 1Mozilla 2Firefox Thunderbird Jun 17, 2026 Jun 16, 2026 N/A· v4 6.5 MEDIUM· v3 N/A· v2 Denial-of-service in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.
CVE-2026-12324 1Mozilla 2Firefox Thunderbird Jun 17, 2026 Jun 16, 2026 N/A· v4 7.3 HIGH· v3 N/A· v2 Incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.
CVE-2026-12323 1Mozilla 2Firefox Thunderbird Jun 17, 2026 Jun 16, 2026 N/A· v4 5.4 MEDIUM· v3 N/A· v2 Spoofing issue in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 152 and Thunderbird 152.

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