| CVE-2026-12315 | 심각9.1 | Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. | 16/06/2026 |
| CVE-2026-12314 | 높음7.5 | Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. | 16/06/2026 |
| CVE-2026-12313 | 보통4.7 | Information disclosure, sandbox escape in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. | 16/06/2026 |
| CVE-2026-12312 | 높음7.5 | Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. | 16/06/2026 |
| CVE-2026-12311 | 보통4.7 | Information disclosure, sandbox escape in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. | 16/06/2026 |
| CVE-2026-12310 | 높음7.5 | Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. | 16/06/2026 |
| CVE-2026-12309 | 보통6.5 | Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. | 16/06/2026 |
| CVE-2026-12308 | 보통5.3 | Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. | 16/06/2026 |
| CVE-2026-12307 | 보통5.3 | Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. | 16/06/2026 |
| CVE-2026-12306 | 보통5.3 | Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. | 16/06/2026 |
| CVE-2026-12305 | 높음7.5 | Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. | 16/06/2026 |
| CVE-2026-12304 | 심각9.1 | Same-origin policy bypass in the Networking: Cookies component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. | 16/06/2026 |
| CVE-2026-12303 | 보통4.3 | Information disclosure due to incorrect boundary conditions in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 152 and Thunderbird 152. | 16/06/2026 |
| CVE-2026-12302 | 보통6.5 | Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12. | 16/06/2026 |
| CVE-2026-12301 | 보통5.3 | Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152 and Thunderbird 152. | 16/06/2026 |
| CVE-2026-12300 | 보통5.3 | Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152 and Thunderbird 152. | 16/06/2026 |
| CVE-2026-12299 | 보통5.4 | JIT miscompilation in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12. | 16/06/2026 |
| CVE-2026-12298 | 보통5.4 | Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. | 16/06/2026 |
| CVE-2026-12297 | 심각9.6 | Sandbox escape due to incorrect boundary conditions in the Networking component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12. | 16/06/2026 |
| CVE-2026-12296 | 심각9.6 | Sandbox escape in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. | 16/06/2026 |