| CVE-2026-16409 | Invalid pointer in the Security: PSM component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | high | 2026-07-24 |
| CVE-2026-16407 | Mitigation bypass in the DOM: Service Workers component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | critical | 2026-07-24 |
| CVE-2026-16404 | Spoofing issue in Firefox for Android. This vulnerability was fixed in Firefox 153. | high | 2026-07-24 |
| CVE-2026-16403 | Spoofing issue in the Address Bar component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | medium | 2026-07-24 |
| CVE-2026-16402 | Integer overflow in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | critical | 2026-07-24 |
| CVE-2026-16401 | Privilege escalation in the Data Loss Prevention component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | high | 2026-07-24 |
| CVE-2026-16400 | Information disclosure in the DOM: Security component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | high | 2026-07-24 |
| CVE-2026-16399 | Site isolation issue in the DOM: Navigation component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | high | 2026-07-24 |
| CVE-2026-16398 | Site isolation issue in the Graphics component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | high | 2026-07-24 |
| CVE-2026-16396 | Privilege escalation in WebExtensions. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | high | 2026-07-24 |
| CVE-2026-16393 | Incorrect boundary conditions in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | critical | 2026-07-24 |
| CVE-2026-16391 | Information disclosure in the Storage: IndexedDB component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | high | 2026-07-24 |
| CVE-2026-16390 | Mitigation bypass in the Enterprise Policies component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | critical | 2026-07-24 |
| CVE-2026-16389 | Incorrect boundary conditions, integer overflow in the Libraries component in NSS. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | critical | 2026-07-24 |
| CVE-2026-16388 | Sandbox escape in the DOM: Networking component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | critical | 2026-07-24 |
| CVE-2026-16387 | Site isolation issue in the Networking component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | critical | 2026-07-24 |
| CVE-2026-16383 | Mitigation bypass in the DOM: Networking component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | critical | 2026-07-24 |
| CVE-2026-16382 | Mitigation bypass in the DOM: Service Workers component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | critical | 2026-07-24 |
| CVE-2026-16381 | Same-origin policy bypass in the Networking: DNS component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | critical | 2026-07-24 |
| CVE-2026-16380 | Mitigation bypass in the Networking component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | critical | 2026-07-24 |
| CVE-2026-16379 | Privilege escalation in the DOM: Content Processes component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | high | 2026-07-24 |
| CVE-2026-16378 | Other issue in the DOM: Copy & Paste and Drag & Drop component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | high | 2026-07-24 |
| CVE-2026-16377 | Mitigation bypass in the PDF Viewer component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | critical | 2026-07-24 |
| CVE-2026-16376 | Denial-of-service in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | high | 2026-07-24 |
| CVE-2026-16375 | Site isolation issue in the Networking: HTTP component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | critical | 2026-07-24 |
| CVE-2026-16374 | Information disclosure in the Framework component in DevTools. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | high | 2026-07-24 |
| CVE-2026-16373 | Information disclosure in the Privacy component in Firefox for Android. This vulnerability was fixed in Firefox 153. | high | 2026-07-24 |
| CVE-2026-16372 | Privilege escalation in the DOM: Content Processes component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | high | 2026-07-24 |
| CVE-2026-16371 | Privilege escalation in the DOM: Navigation component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | high | 2026-07-24 |
| CVE-2026-16370 | Mitigation bypass in the DOM: Networking component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | critical | 2026-07-24 |
| CVE-2026-16369 | Integer overflow in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | critical | 2026-07-24 |
| CVE-2026-16368 | Incorrect boundary conditions in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | critical | 2026-07-24 |
| 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. | critical | 2026-07-24 |
| CVE-2026-16366 | Privilege escalation in the DOM: Navigation component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | high | 2026-07-24 |
| CVE-2026-16365 | Privilege escalation in the DOM: Workers component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | high | 2026-07-24 |
| CVE-2026-16364 | Incorrect boundary conditions in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | critical | 2026-07-24 |
| CVE-2026-16363 | JIT miscompilation in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | critical | 2026-07-24 |
| CVE-2026-16362 | Use-after-free in the WebRTC: Audio/Video component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | high | 2026-07-24 |
| CVE-2026-16361 | Memory safety bugs present in Thunderbird ESR 140.12. 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 ESR 115.38, Firefox ESR 140.13, and Thunderbird 140.13. | critical | 2026-07-24 |
| CVE-2026-16360 | Memory safety bugs present in Firefox ESR 115.37, Firefox ESR 140.12 and Firefox 152. 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 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | critical | 2026-07-24 |
| CVE-2026-16359 | Incorrect boundary conditions in the Audio/Video: GMP component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | critical | 2026-07-24 |
| CVE-2026-16358 | Site isolation issue in the Graphics: WebRender component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | critical | 2026-07-24 |
| CVE-2026-16357 | Incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | critical | 2026-07-24 |
| CVE-2026-16356 | Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | critical | 2026-07-24 |
| CVE-2026-16355 | JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | critical | 2026-07-24 |
| CVE-2026-16354 | Information disclosure in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | high | 2026-07-24 |
| CVE-2026-16353 | Invalid pointer in the DOM: Bindings (WebIDL) component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | critical | 2026-07-24 |
| CVE-2026-16352 | Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | critical | 2026-07-24 |
| CVE-2026-16351 | Sandbox escape due to use-after-free in the DOM: Navigation component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | critical | 2026-07-24 |
| CVE-2026-16350 | Incorrect boundary conditions in the Audio/Video: cubeb component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | critical | 2026-07-24 |
