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CVSS
EPSS
| CVE | CVSS | EPSS | Vendor, product | Description | Modified |
|---|---|---|---|---|---|
| CVE-2026-100765 | 8.8 high | 0.00% | mozilla, firefox, thunderbird | Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157. | 13 Oct |
| CVE-2026-100824 | 8.8 high | 0.00% | mozilla, firefox, thunderbird | Privilege escalation in the Places component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157. | 13 Oct |
| CVE-2026-100825 | 8.8 high | 0.00% | mozilla, firefox, thunderbird | Use-after-free in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157. | 13 Oct |
| CVE-2026-100831 | 8.8 high | 0.00% | mozilla, firefox, thunderbird | Use-after-free in the DOM: UI Events & Focus Handling component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157. | 13 Oct |
| CVE-2026-8958 | 8.6 high | 0.00% | mozilla, firefox, thunderbird | Information disclosure, sandbox escape in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11. | 14 Oct |
| CVE-2026-8093 | 8.1 high | 0.00% | mozilla, firefox, thunderbird | Memory safety bugs present in Thunderbird 150.0.1. 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 150.0.2 and Thunderbird 150.0.2. | Mon 26 Oct |
| CVE-2026-8092 | 8.1 high | 0.00% | mozilla, firefox, thunderbird | Memory safety bugs present in Thunderbird ESR 140.10.1 and Thunderbird 150.0.1. 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 150.0.2, Firefox ESR 140.10.2, Firefox ESR 115.35.2, Thunderbird 150.0.2, and Thunderbird 140.10.2. | Mon 26 Oct |
| CVE-2026-12326 | 8.1 high | 0.00% | mozilla, firefox, thunderbird | 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. | Mon 26 Oct |
| CVE-2026-12327 | 8.1 high | 0.00% | mozilla, firefox, thunderbird | 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. | Mon 26 Oct |
| CVE-2026-12328 | 8.1 high | 0.00% | mozilla, firefox, thunderbird | 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. | Mon 26 Oct |
| CVE-2026-12290 | 8.1 high | 0.00% | mozilla, firefox, thunderbird | Memory safety bug fixed in Thunderbird 152. 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-2026-12292 | 8.1 high | 0.00% | mozilla, firefox, thunderbird | Incorrect boundary conditions in the Web Audio component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. | Mon 26 Oct |
| CVE-2025-11713 | 8.1 high | 0.00% | mozilla, firefox, thunderbird | Insufficient escaping in the “Copy as cURL” feature could have been used to trick a user into executing unexpected code on Windows. This did not affect the application when running on other operating systems. This vulnerability was fixed in Firefox 144, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4. | Fri 23 Oct |
| CVE-2025-13017 | 8.1 high | 0.00% | mozilla, firefox | Same-origin policy bypass in the DOM: Notifications component. This vulnerability was fixed in Firefox 145, Firefox ESR 140.5, Thunderbird 145, and Thunderbird 140.5. | Fri 23 Oct |
| CVE-2025-13018 | 8.1 high | 0.00% | mozilla, firefox | Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 145, Firefox ESR 140.5, Thunderbird 145, and Thunderbird 140.5. | Fri 23 Oct |
| CVE-2025-13019 | 8.1 high | 0.00% | mozilla, firefox | Same-origin policy bypass in the DOM: Workers component. This vulnerability was fixed in Firefox 145, Firefox ESR 140.5, Thunderbird 145, and Thunderbird 140.5. | Fri 23 Oct |
| CVE-2026-100798 | 8.1 high | 0.00% | mozilla, firefox, thunderbird | Cryptography misuse in Storage: Quota Manager component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157. | 19 Oct |
| CVE-2026-100803 | 8.1 high | 0.00% | mozilla, firefox, thunderbird | Same-origin policy bypass in the WebExtensions component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17. | 19 Oct |
| CVE-2025-10534 | 8.1 high | 0.00% | mozilla, firefox, thunderbird | Spoofing issue in the Site Permissions component. This vulnerability was fixed in Firefox 143 and Thunderbird 143. | 18 Oct |
| CVE-2025-13027 | 8.1 high | 0.00% | mozilla, firefox | Memory safety bugs present in Firefox 144 and Thunderbird 144. 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 145 and Thunderbird 145. | 18 Oct |
| CVE-2026-100759 | 8.1 high | 0.00% | mozilla, firefox, thunderbird | Uninitialized memory in the Storage: Quota Manager component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17. | 13 Oct |
| CVE-2026-100830 | 8.1 high | 0.00% | mozilla, firefox, thunderbird | Mitigation bypass in the DOM: Navigation component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157. | 13 Oct |
| CVE-2025-11720 | 8.1 high | 0.00% | mozilla, firefox | The Firefox and Firefox Focus UI for the Android custom tab feature only showed the "site" that was loaded, not the full hostname. User supplied content hosted on a subdomain of a site could have been used to fool a user into thinking it was content from a different subdomain of that site. This vulnerability was fixed in Firefox 144. | 8 Oct |
| CVE-2026-41431 | 8.0 high | 0.00% | no CPE yet | Zen is a firefox-based browser. Prior to 1.19.9b, Zen Browser ships a Mozilla Application Resource (MAR) updater (org.mozilla.updater) that has had all MAR signature verification stripped from the Firefox codebase it was forked from. The MAR files served to users contain zero cryptographic signatures, and the updater binary contains zero cryptographic verification code. This eliminates the defense-in-depth that MAR signing provides. If the update server or GitHub release pipeline is compromised, arbitrary unsigned code can be delivered to all Zen users via the auto-update mechanism. This vulnerability is fixed in 1.19.9b. | Mon 26 Oct |
| CVE-2026-6776 | 7.8 high | 0.00% | mozilla, firefox, thunderbird | Incorrect boundary conditions in the WebRTC: Networking component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | Mon 26 Oct |
| CVE-2023-37208 | 7.8 high | 0.00% | mozilla, debian, firefox, firefox_esr, thunderbird | When opening Diagcab files, Firefox did not warn the user that these files may contain malicious code. This vulnerability affects Firefox < 115, Firefox ESR < 102.13, and Thunderbird < 102.13. | Sat 24 Oct |
| CVE-2026-6786 | 7.5 high | 0.00% | mozilla, firefox, thunderbird | 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 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 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | Mon 26 Oct |
| CVE-2026-6747 | 7.5 high | 0.00% | mozilla, firefox, thunderbird | Use-after-free in the WebRTC component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | Mon 26 Oct |
| CVE-2026-6766 | 7.5 high | 0.00% | mozilla, firefox, thunderbird | Incorrect boundary conditions in the Libraries component in NSS. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | Mon 26 Oct |
| CVE-2026-6772 | 7.5 high | 0.00% | mozilla, firefox, thunderbird | Incorrect boundary conditions in the Libraries component in NSS. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | Mon 26 Oct |
| CVE-2026-6784 | 7.5 high | 0.00% | mozilla, firefox, thunderbird | Memory safety bugs present in Firefox 149 and Thunderbird 149. 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 150 and Thunderbird 150. | Mon 26 Oct |
| CVE-2026-12305 | 7.5 high | 0.00% | mozilla, firefox, thunderbird | Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. | Mon 26 Oct |
| CVE-2026-7320 | 7.5 high | 0.00% | mozilla, firefox, thunderbird | Information disclosure due to incorrect boundary conditions in the Audio/Video component. This vulnerability was fixed in Firefox 150.0.1, Firefox ESR 140.10.1, Firefox ESR 115.35.1, Thunderbird 150.0.1, and Thunderbird 140.10.1. | Mon 26 Oct |
| CVE-2026-12310 | 7.5 high | 0.00% | mozilla, firefox, thunderbird | Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. | Mon 26 Oct |
| CVE-2026-12312 | 7.5 high | 0.00% | mozilla, firefox, thunderbird | Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. | Mon 26 Oct |
| CVE-2026-12314 | 7.5 high | 0.00% | mozilla, firefox, thunderbird | Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. | Mon 26 Oct |
| CVE-2026-12317 | 7.5 high | 0.00% | mozilla, firefox, thunderbird | Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152 and Thunderbird 152. | Mon 26 Oct |
| CVE-2026-6756 | 7.5 high | 0.00% | mozilla, firefox | Mitigation bypass in Firefox for Android. This vulnerability was fixed in Firefox 150. | Mon 26 Oct |
| CVE-2026-6759 | 7.5 high | 0.00% | mozilla, firefox, thunderbird | Use-after-free in the Widget: Cocoa component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | Mon 26 Oct |
| CVE-2026-6773 | 7.5 high | 0.00% | mozilla, firefox, thunderbird | Denial-of-service due to integer overflow in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 150 and Thunderbird 150. | Mon 26 Oct |
| CVE-2026-6780 | 7.5 high | 0.00% | mozilla, firefox, thunderbird | Denial-of-service in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 150 and Thunderbird 150. | Mon 26 Oct |
| CVE-2026-6781 | 7.5 high | 0.00% | mozilla, firefox, thunderbird | Denial-of-service in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 150 and Thunderbird 150. | Mon 26 Oct |
| CVE-2026-6782 | 7.5 high | 0.00% | mozilla, firefox, thunderbird | Information disclosure in the IP Protection component. This vulnerability was fixed in Firefox 150 and Thunderbird 150. | Mon 26 Oct |
| CVE-2026-6749 | 7.5 high | 0.00% | mozilla, firefox, thunderbird | Information disclosure due to uninitialized memory in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | Sun 25 Oct |
| CVE-2026-6754 | 7.5 high | 0.00% | mozilla, firefox, thunderbird | Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | Sun 25 Oct |
| CVE-2026-16398 | 7.5 high | 0.00% | mozilla, firefox, thunderbird | Site isolation issue in the Graphics component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | Sat 24 Oct |
| CVE-2026-16354 | 7.5 high | 0.00% | mozilla, firefox, thunderbird | 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. | Sat 24 Oct |
| CVE-2026-16373 | 7.5 high | 0.00% | mozilla, firefox_mobile | Information disclosure in the Privacy component in Firefox for Android. This vulnerability was fixed in Firefox 153. | Sat 24 Oct |
| CVE-2026-16374 | 7.5 high | 0.00% | mozilla, firefox, thunderbird | 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. | Sat 24 Oct |
| CVE-2026-16378 | 7.5 high | 0.00% | mozilla, firefox, thunderbird | Other issue in the DOM: Copy & Paste and Drag & Drop component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | Sat 24 Oct |
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EPSS scores: 2026-10-29. 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.