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CVSS
EPSS
| CVE | CVSS | EPSS | Vendor, product | Description | Modified |
|---|---|---|---|---|---|
| CVE-2026-12295exploit | 9.6 critical | 0.00% | mozilla, firefox, thunderbird | Sandbox escape in the DOM: Navigation component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12. | Mon 26 Oct |
| CVE-2025-6424 | 9.8 critical | 8.0% | mozilla, firefox | A use-after-free in FontFaceSet resulted in a potentially exploitable crash. This vulnerability was fixed in Firefox 140, Firefox ESR 115.25, Firefox ESR 128.12, Thunderbird 140, and Thunderbird 128.12. | 23 Oct |
| CVE-2026-16367 | 10.0 critical | 1.0% | mozilla, firefox, thunderbird | Sandbox escape due to invalid pointer in the Disability Access APIs component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | 24 Oct |
| CVE-2026-74990 | 9.8 critical | 1.0% | mozilla, firefox, thunderbird | Internally found bugs present in Firefox ESR 115.38, Firefox ESR 140.13, Firefox ESR 153.0 and Firefox 153. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. 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. | Wed 28 Oct |
| CVE-2026-74989 | 9.8 critical | 1.0% | mozilla, firefox, thunderbird | Internally found bugs present in Firefox 153. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. This vulnerability was fixed in Firefox 154 and Thunderbird 154. | Wed 28 Oct |
| CVE-2026-74988 | 9.8 critical | 1.0% | mozilla, firefox, thunderbird | Internally found bugs present in Firefox ESR 153.0 and Firefox 153. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.1. | Wed 28 Oct |
| CVE-2026-74987 | 9.8 critical | 1.0% | mozilla, firefox, thunderbird | Internally found bugs present in Firefox ESR 140.13, Firefox ESR 153.0 and Firefox 153. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1. | Wed 28 Oct |
| CVE-2026-16360 | 9.8 critical | 1.0% | mozilla, firefox, thunderbird | Memory safety bugs present in Thunderbird ESR 140.12 and Thunderbird 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. | 24 Oct |
| CVE-2026-16395 | 9.8 critical | 1.0% | mozilla, firefox | Integer overflow in the Audio/Video component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | 24 Oct |
| CVE-2026-16350 | 9.8 critical | 1.0% | mozilla, firefox, thunderbird | 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. | 24 Oct |
| CVE-2026-16351 | 9.8 critical | 1.0% | mozilla, firefox, thunderbird | 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. | 24 Oct |
| CVE-2026-16352 | 9.8 critical | 1.0% | mozilla, firefox, thunderbird | 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. | 24 Oct |
| CVE-2026-16353 | 9.8 critical | 1.0% | mozilla, firefox, thunderbird | 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. | 24 Oct |
| CVE-2026-16355 | 9.8 critical | 1.0% | mozilla, firefox, thunderbird | 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. | 24 Oct |
| CVE-2026-16356 | 9.8 critical | 1.0% | mozilla, firefox, thunderbird | 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. | 24 Oct |
| CVE-2026-16357 | 9.8 critical | 1.0% | mozilla, firefox, thunderbird | 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. | 24 Oct |
| CVE-2026-16361 | 9.8 critical | 1.0% | mozilla, firefox, thunderbird | 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. | 24 Oct |
| CVE-2026-16363 | 9.8 critical | 1.0% | mozilla, firefox, thunderbird | JIT miscompilation in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | 24 Oct |
| CVE-2026-16368 | 9.8 critical | 1.0% | mozilla, firefox, thunderbird | 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. | 24 Oct |
| CVE-2026-16369 | 9.8 critical | 1.0% | mozilla, firefox, thunderbird | Integer overflow in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | 24 Oct |
| CVE-2026-16377 | 9.8 critical | 1.0% | mozilla, firefox, thunderbird | Mitigation bypass in the PDF Viewer component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | 24 Oct |
| CVE-2026-16382 | 9.8 critical | 1.0% | mozilla, firefox, thunderbird | Mitigation bypass in the DOM: Service Workers component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | 24 Oct |
| CVE-2026-16383 | 9.8 critical | 1.0% | mozilla, firefox, thunderbird | Mitigation bypass in the DOM: Networking component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | 24 Oct |
| CVE-2026-16388 | 9.8 critical | 1.0% | mozilla, firefox, thunderbird | Sandbox escape in the DOM: Networking component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | 24 Oct |
| CVE-2026-16389 | 9.8 critical | 1.0% | mozilla, firefox, thunderbird | Incorrect boundary conditions, integer overflow in the Libraries component in NSS. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | 24 Oct |
| CVE-2026-16402 | 9.8 critical | 1.0% | mozilla, firefox, thunderbird | Integer overflow in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | 24 Oct |
| CVE-2026-16407 | 9.8 critical | 1.0% | mozilla, firefox, thunderbird | Mitigation bypass in the DOM: Service Workers component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | 24 Oct |
| CVE-2026-16408 | 9.8 critical | 1.0% | mozilla, firefox | Integer overflow in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | 24 Oct |
| CVE-2026-16410 | 9.8 critical | 1.0% | mozilla, firefox, thunderbird | JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | 24 Oct |
| CVE-2023-29531 | 9.8 critical | 1.0% | mozilla, firefox, firefox_esr, thunderbird | An attacker could have caused an out of bounds memory access using WebGL APIs, leading to memory corruption and a potentially exploitable crash. *This bug only affects Firefox and Thunderbird for macOS. Other operating systems are unaffected.* This vulnerability affects Firefox < 112, Firefox ESR < 102.10, and Thunderbird < 102.10. | 24 Oct |
| CVE-2023-34416 | 9.8 critical | 1.0% | mozilla, firefox, firefox_esr, thunderbird | Memory safety bugs present in Firefox 113, Firefox ESR 102.11, and Thunderbird 102.12. 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 affects Firefox ESR < 102.12, Firefox < 114, and Thunderbird < 102.12. | 24 Oct |
| CVE-2025-11708 | 9.8 critical | 1.0% | mozilla, firefox, thunderbird | Use-after-free in MediaTrackGraphImpl::GetInstance(). This vulnerability was fixed in Firefox 144, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4. | 23 Oct |
| CVE-2023-29542 | 9.8 critical | 1.0% | mozilla, firefox, firefox_esr, thunderbird | A newline in a filename could have been used to bypass the file extension security mechanisms that replace malicious file extensions such as .lnk with .download. This could have led to accidental execution of malicious code. *This bug only affects Firefox and Thunderbird on Windows. Other versions of Firefox and Thunderbird are unaffected.* This vulnerability affects Firefox < 112, Firefox ESR < 102.10, and Thunderbird < 102.10. | 23 Oct |
| CVE-2026-16412 | 9.8 critical | 1.0% | mozilla, firefox | Memory safety bugs present in Thunderbird ESR 140.12 and Thunderbird 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 140.13, Thunderbird 153, and Thunderbird 140.13. | 21 Oct |
| CVE-2026-16411 | 9.8 critical | 1.0% | mozilla, firefox | Memory safety bugs present in Thunderbird 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 and Thunderbird 153. | 21 Oct |
| CVE-2026-8956 | 9.8 critical | 1.0% | mozilla, firefox, thunderbird | Integer overflow in the Networking: JAR component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11. | 14 Oct |
| CVE-2026-8953 | 9.6 critical | 1.0% | mozilla, firefox, thunderbird | Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox 151, Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11. | 14 Oct |
| CVE-2026-16392 | 9.1 critical | 1.0% | mozilla, firefox, thunderbird | JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | 24 Oct |
| CVE-2026-16393 | 9.1 critical | 1.0% | mozilla, firefox, thunderbird | Incorrect boundary conditions in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | 24 Oct |
| CVE-2026-6771 | 9.8 critical | 0.00% | mozilla, firefox, thunderbird | Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | Mon 26 Oct |
| CVE-2026-6748 | 9.8 critical | 0.00% | mozilla, firefox, thunderbird | Uninitialized memory in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | Mon 26 Oct |
| CVE-2026-8094 | 9.8 critical | 0.00% | mozilla, firefox, thunderbird | Other issue in the WebRTC component. This vulnerability was fixed in Firefox ESR 140.10.2 and Thunderbird 140.10.2. | Mon 26 Oct |
| CVE-2026-109780 | 9.8 critical | 0.00% | no CPE yet | Mitigation bypass in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 158 and Thunderbird 158. | Mon 26 Oct |
| CVE-2026-109774 | 9.8 critical | 0.00% | no CPE yet | Invalid pointer, undefined behavior in the DOM: Notifications component. This vulnerability was fixed in Firefox 158 and Thunderbird 158. | Mon 26 Oct |
| CVE-2026-8401 | 9.8 critical | 0.00% | mozilla, firefox | Sandbox escape in the Profile Backup component. This vulnerability was fixed in Firefox 150.0.3, Firefox ESR 115.36, Firefox ESR 140.11, and Thunderbird 140.11. | Mon 26 Oct |
| CVE-2026-12293 | 9.8 critical | 0.00% | mozilla, firefox, thunderbird | Use-after-free in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 152 and Thunderbird 152. | Mon 26 Oct |
| CVE-2026-6760 | 9.8 critical | 0.00% | mozilla, firefox, thunderbird | Mitigation bypass in the Networking: Cookies component. This vulnerability was fixed in Firefox 150 and Thunderbird 150. | 26 Oct |
| CVE-2026-6768 | 9.8 critical | 0.00% | mozilla, firefox, thunderbird | Mitigation bypass in the Networking: Cookies component. This vulnerability was fixed in Firefox 150 and Thunderbird 150. | 26 Oct |
| CVE-2026-8091 | 9.8 critical | 0.00% | mozilla, firefox, thunderbird | Incorrect boundary conditions in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 150, Thunderbird 150, Firefox ESR 140.10.1, Thunderbird 140.10.1, and Firefox ESR 115.35.2. | 26 Oct |
| CVE-2026-16349 | 9.8 critical | 0.00% | mozilla, firefox, thunderbird | Same-origin policy bypass 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. | 24 Oct |
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EPSS scores: 2026-11-01. NVD cursor: 2026-10-29 00:22. The News page shows only notable CVEs (KEV, your stack, new criticals, EPSS over 50%, or active exploitation per SSVC); this table has all of them.