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CRITICAL 10.0 CVE-2026-16367 Sandbox escape due to invalid pointer in the Disability Access APIs component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. Firefox 153.0 / 153.0.0+ Fix from $2,3002026-07-21 CRITICAL 9.8 CVE-2026-14241 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… Firefox Mitigation only Fix from $2,3002026-06-30 HIGH 7.5 CVE-2026-12314 Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. Firefox 140.12.0 / 152.0.0+ Fix from $1,9502026-06-16 HIGH 7.5 CVE-2026-12310 Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. Firefox 140.12.0 / 152.0.0+ Fix from $1,9502026-06-16 MEDIUM 5.4 CVE-2026-12298 Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. Firefox 140.12.0 / 152.0+ Fix from $1,6002026-06-16 HIGH 8.1 CVE-2026-12292 Incorrect boundary conditions in the Web Audio component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thund… Firefox 140.12.0 / 152.0.0+ Fix from $1,9502026-06-16 HIGH 8.8 CVE-2026-8975 Memory safety bugs present in Firefox ESR 115.35, Firefox ESR 140.10 and Firefox 150. Some of these bugs showed evidence of memory corruption and we … Firefox 115.36.0 / 140.11+ Fix from $1,9502026-05-19 HIGH 8.8 CVE-2026-8973 Memory safety bugs present in Firefox 150. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of the… Firefox 151.0.0+ Fix from $1,9502026-05-19 HIGH 7.5 CVE-2026-8946 Incorrect boundary conditions in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 151, Firefox ESR 115.36, Firefox ESR … Firefox 115.36.0 / 140.11+ Fix from $1,9502026-05-19 MEDIUM 6.5 CVE-2026-8388 Incorrect boundary conditions in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 150.0.3, Firefox ESR 115.36, Firefox E… Firefox 150.0.3+ Fix from $1,6002026-05-12 HIGH 8.1 CVE-2026-8092 Memory safety bugs present in Firefox ESR 115.35.1, Firefox ESR 140.10.1 and Firefox 150.0.1. Some of these bugs showed evidence of memory corruption… Firefox 115.35.2 / 140.10.2+ Fix from $1,9502026-05-07 HIGH 7.3 CVE-2026-7322 Memory safety bugs present in Thunderbird ESR 140.10.0 and Thunderbird 150.0.0. Some of these bugs showed evidence of memory corruption and we presum… Firefox 115.35.1 / 140.10.1+ Fix from $1,9502026-04-28 HIGH 7.3 CVE-2026-7323 Memory safety bugs present in Thunderbird ESR 140.10.0 and Thunderbird 150.0.0. Some of these bugs showed evidence of memory corruption and we presum… Firefox 140.10.1 / 150.0.1+ Fix from $1,9502026-04-28 HIGH 7.5 CVE-2026-6785 Memory safety bugs present in Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149 and Thunderbird 149. Some of these bugs showe… Firefox 115.35.0 / 140.10.0+ Fix from $1,9502026-04-26 HIGH 7.5 CVE-2026-6786 Memory safety bugs present in Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149 and Thunderbird 149. Some of these bugs showed evidence of memory… Firefox 140.10.0 / 150.0+ Fix from $1,9502026-04-26 HIGH 7.5 CVE-2026-6784 Memory safety bugs present in Firefox 149 and Thunderbird 149. Some of these bugs showed evidence of memory corruption and we presume that with enoug… Firefox 150.0+ Fix from $1,9502026-04-21 HIGH 7.3 CVE-2026-6753 Incorrect boundary conditions in the WebRTC component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderb… Firefox 140.10.0 / 150.0+ Fix from $1,9502026-04-21 CRITICAL 9.8 CVE-2026-5731 Memory safety bugs present in Firefox ESR 115.34.0, Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. Some of th… Firefox Mitigation only Fix from $2,3002026-04-07 CRITICAL 9.8 CVE-2026-5734 Memory safety bugs present in Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. Some of these bugs showed eviden… Firefox 140.9.1 / 149.0.2+ Fix from $2,3002026-04-07 CRITICAL 9.8 CVE-2026-5735 Memory safety bugs present in Firefox 149.0.1 and Thunderbird 149.0.1. Some of these bugs showed evidence of memory corruption and we presume that wi… Firefox 149.0.2+ Fix from $2,3002026-04-07 HIGH 8.8 CVE-2026-5733 Incorrect boundary conditions in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 149.0.2 and Thunderbird 149.0.2. Firefox 149.0.2+ Fix from $1,9502026-04-07 HIGH 7.5 CVE-2026-4697 Incorrect boundary conditions in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 1… Firefox 140.9.0 / 149.0+ Fix from $1,9502026-03-24 HIGH 7.5 CVE-2026-4699 Incorrect boundary conditions in the Layout: Text and Fonts component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 1… Firefox 115.34.0 / 140.9.0+ Fix from $1,9502026-03-24 HIGH 7.5 CVE-2026-4685 Incorrect boundary conditions in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9… Firefox 115.34.0 / 140.9.0+ Fix from $1,9502026-03-24 HIGH 7.5 CVE-2026-4686 Incorrect boundary conditions in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9… Firefox 115.34.0 / 140.9.0+ Fix from $1,9502026-03-24 CRITICAL 9.8 CVE-2026-2807 Memory safety bugs present in Firefox 147 and Thunderbird 147. Some of these bugs showed evidence of memory corruption and we presume that with enoug… Firefox 148.0+ Fix from $2,3002026-02-24 CRITICAL 9.8 CVE-2026-2792 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… Firefox 140.8.0 / 148.0+ Fix from $2,3002026-02-24 CRITICAL 9.8 CVE-2026-2793 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 showe… Firefox 115.33.0 / 140.8.0+ Fix from $2,3002026-02-24 HIGH 8.1 CVE-2025-14333 Memory safety bugs present in Firefox ESR 140.5, Thunderbird ESR 140.5, Firefox 145 and Thunderbird 145. Some of these bugs showed evidence of memory… Firefox 140.6.0 / 146.0+ Fix from $1,9502025-12-09 HIGH 7.3 CVE-2025-14332 Memory safety bugs present in Firefox 145 and Thunderbird 145. Some of these bugs showed evidence of memory corruption and we presume that with enoug… Firefox 146.0+ Fix from $1,9502025-12-09