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  1. 7.5CVE-2026-8964EPSS 0.3%

    Spoofing issue in the Popup Blocker component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.

  2. 7.5CVE-2026-8963EPSS 0.3%

    Spoofing issue in the Web Speech component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.

  3. 8.1CVE-2026-8962EPSS 0.4%

    Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.

  4. 6.5CVE-2026-8961EPSS 0.3%

    Spoofing issue in the Form Autofill component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.

  5. 7.5CVE-2026-8960EPSS 0.4%

    Spoofing issue in WebExtensions. This vulnerability was fixed in Firefox 151 and Thunderbird 151.

  6. 9.6CVE-2026-8959EPSS 0.4%

    Sandbox escape due to incorrect boundary conditions in the Widget: Win32 component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.

  7. 8.6CVE-2026-8958EPSS 0.3%

    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.

  8. 8.8CVE-2026-8957EPSS 0.4%

    Privilege escalation in the Enterprise Policies component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.

  9. 9.8CVE-2026-8956EPSS 0.6%

    Integer overflow in the Networking: JAR component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.

  10. 8.8CVE-2026-8955EPSS 0.4%

    Privilege escalation in the DOM: Workers component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.

  11. 7.5CVE-2026-8954EPSS 0.4%

    Incorrect boundary conditions, integer overflow in the Audio/Video component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.

  12. 9.6CVE-2026-8953EPSS 0.5%

    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.

  13. 8.8CVE-2026-8952EPSS 0.4%

    Privilege escalation in the Application Update component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.

  14. 9.3CVE-2026-8950EPSS 0.2%

    Same-origin policy bypass in the Networking: HTTP component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.

  15. 7.5CVE-2026-8949EPSS 0.6%

    Integer overflow in the Widget: Win32 component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.

  16. 9.1CVE-2026-8948EPSS 0.4%

    Same-origin policy bypass in the DOM: Networking component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.

  17. 7.3CVE-2026-8947EPSS 0.4%

    Use-after-free in the DOM: Bindings (WebIDL) component. This vulnerability was fixed in Firefox 151, Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.

  18. 7.5CVE-2026-8946EPSS 0.6%

    Incorrect boundary conditions in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 151, Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.

  19. 9.8CVE-2026-8094EPSS 0.4%

    Other issue in the WebRTC component. This vulnerability was fixed in Firefox ESR 140.10.2 and Thunderbird 140.10.2.

  20. 8.1CVE-2026-8093EPSS 0.3%

    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 i…

  21. 8.1CVE-2026-8092EPSS 0.4%

    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. T…

  22. 9.8CVE-2026-8091EPSS 0.5%

    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.

  23. 7.3CVE-2026-8090EPSS 0.3%

    Use-after-free in the DOM: Networking component. 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.

  24. 7.3CVE-2026-7324EPSS 0.3%

    Memory safety bugs present in Thunderbird 150.0.0. 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 i…

  25. 7.3CVE-2026-7323EPSS 0.4%

    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 presume that with enough effort some of these could have been exploited to run arbitrary code. T…

  26. 7.3CVE-2026-7322EPSS 0.3%

    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 presume that with enough effort some of these could have been exploited to run arbitrary code. T…

  27. 9.6CVE-2026-7321EPSS 0.3%

    Sandbox escape due to incorrect boundary conditions in the WebRTC: Networking component. This vulnerability was fixed in Firefox 150, Thunderbird 150, Firefox ESR 140.10.1, and Thunderbird 140.10.1.

  28. 7.5CVE-2026-7320EPSS 0.3%

    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.

  29. 7.5CVE-2026-6786EPSS 0.5%

    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…

  30. 7.5CVE-2026-6785EPSS 0.5%

    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 showed evidence of memory corruption and we presume that with enough effort some of these could…

  31. 7.5CVE-2026-6784EPSS 0.4%

    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…

  32. 5.3CVE-2026-6783EPSS 0.2%

    Incorrect boundary conditions, integer overflow in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 150 and Thunderbird 150.

  33. 7.5CVE-2026-6782EPSS 0.3%

    Information disclosure in the IP Protection component. This vulnerability was fixed in Firefox 150 and Thunderbird 150.

  34. 7.5CVE-2026-6781EPSS 0.3%

    Denial-of-service in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 150 and Thunderbird 150.

  35. 7.5CVE-2026-6780EPSS 0.3%

    Denial-of-service in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 150 and Thunderbird 150.

  36. 5.3CVE-2026-6779EPSS 0.2%

    Other issue in the JavaScript Engine component. This vulnerability was fixed in Firefox 150 and Thunderbird 150.

  37. 5.3CVE-2026-6778EPSS 0.3%

    Invalid pointer in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 150 and Thunderbird 150.

  38. 5.3CVE-2026-6777EPSS 0.2%

    Other issue in the Networking: DNS component. This vulnerability was fixed in Firefox 150 and Thunderbird 150.

  39. 7.8CVE-2026-6776EPSS 0.1%

    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.

  40. 5.3CVE-2026-6775EPSS 0.2%

    Incorrect boundary conditions in the WebRTC component. This vulnerability was fixed in Firefox 150 and Thunderbird 150.

  41. 5.4CVE-2026-6774EPSS 0.2%

    Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 150 and Thunderbird 150.

  42. 7.5CVE-2026-6773EPSS 0.3%

    Denial-of-service due to integer overflow in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 150 and Thunderbird 150.

  43. 7.5CVE-2026-6772EPSS 0.4%

    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.

  44. 9.8CVE-2026-6771EPSS 0.3%

    Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.

  45. 6.5CVE-2026-6770EPSS 3.9%

    Other issue in the Storage: IndexedDB component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.

  46. 8.8CVE-2026-6769EPSS 0.2%

    Privilege escalation in the Debugger component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.

  47. 9.8CVE-2026-6768EPSS 0.3%

    Mitigation bypass in the Networking: Cookies component. This vulnerability was fixed in Firefox 150 and Thunderbird 150.

  48. 5.3CVE-2026-6767EPSS 0.2%

    Other issue 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.

  49. 7.5CVE-2026-6766EPSS 0.3%

    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.

  50. 5.3CVE-2026-6765EPSS 0.2%

    Information disclosure in the Form Autofill component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.