Veille CVE

Lundi 5 octobre 2026

75 CVE

Critique 26 Élevée 37 Moyenne 12 Faible 0 Non évaluée 0 Exploitées (KEV) Tri : plus récentes « Mozilla Firefox » ✕
  1. CVE-2026-92067 8.8 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Use-after-free in the Widget: Gtk component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.

  2. CVE-2026-92068 5.4 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Site isolation issue in the Reader Mode component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.

  3. CVE-2026-92069 5.4 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Spoofing issue in the DOM: Navigation component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.

  4. CVE-2026-92070 4.3 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Information disclosure in the Networking component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.

  5. CVE-2026-92071 9.6 Critique

    Mozilla Firefox · Mozilla Thunderbird

    Sandbox escape due to incorrect boundary conditions in the Widget: Win32 component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.

  6. CVE-2026-92072 8.0 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Incorrect boundary conditions in the Safe Browsing component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.

  7. CVE-2026-92073 8.8 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Privilege escalation in the Enterprise Policies component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.

  8. CVE-2026-92074 8.8 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Mitigation bypass in the Popup Blocker component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.

  9. CVE-2026-92075 9.1 Critique

    Mozilla Firefox · Mozilla Thunderbird

    Mitigation bypass in the Networking component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.

  10. CVE-2026-92076 8.8 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Incorrect boundary conditions in the Networking component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.

  11. CVE-2026-92077 6.5 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Denial-of-service in the SVG component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.

  12. CVE-2026-92078 6.5 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Denial-of-service in the Security component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.

  13. CVE-2026-92079 9.1 Critique

    Mozilla Firefox · Mozilla Thunderbird

    Mitigation bypass in the Widget: Win32 component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.

  14. CVE-2026-92057 9.1 Critique

    Mozilla Firefox · Mozilla Thunderbird

    Mitigation bypass in the Enterprise Policies component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.

  15. CVE-2026-92058 8.8 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Use-after-free in the Graphics component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.

  16. CVE-2026-92059 9.3 Critique

    Mozilla Firefox · Mozilla Thunderbird

    Incorrect boundary conditions in the DOM: Editor component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.

  17. CVE-2026-92060 8.8 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Use-after-free in the Internationalization component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.

  18. CVE-2026-92061 9.8 Critique

    Mozilla Firefox · Mozilla Thunderbird

    Incorrect boundary conditions in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox 156 and Thunderbird 156.

  19. CVE-2026-92062 8.8 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Privilege escalation in the Session Restore component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.

  20. CVE-2026-92063 6.5 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Denial-of-service in the Audio/Video component. This vulnerability was fixed in Firefox 156 and Thunderbird 156.

  21. CVE-2026-92064 8.8 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Sandbox escape due to incorrect boundary conditions in the Widget: Win32 component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.

  22. CVE-2026-92065 8.8 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Sandbox escape due to incorrect boundary conditions in the Widget: Win32 component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.

  23. CVE-2026-92066 9.8 Critique

    Mozilla Firefox · Mozilla Thunderbird

    Sandbox escape in the Profile Backup component. This vulnerability was fixed in Firefox 156 and Thunderbird 156.

  24. CVE-2026-92047 8.8 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Privilege escalation in the Crash Reporting component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.

  25. CVE-2026-92048 9.0 Critique

    Mozilla Firefox · Mozilla Thunderbird

    Sandbox escape due to incorrect boundary conditions in the Widget: Win32 component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.

  26. CVE-2026-92049 8.8 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Use-after-free in the Widget: Win32 component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.

  27. CVE-2026-92050 9.1 Critique

    Mozilla Firefox · Mozilla Thunderbird

    Sandbox escape due to race condition in the XPConnect component. This vulnerability was fixed in Firefox 156 and Thunderbird 156.

  28. CVE-2026-92051 9.1 Critique

    Mozilla Firefox · Mozilla Thunderbird

    Spoofing issue due to invalid pointer in the Graphics component. This vulnerability was fixed in Firefox 156 and Thunderbird 156.

  29. CVE-2026-92052 8.8 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Privilege escalation due to uninitialized memory in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.

  30. CVE-2026-92053 8.8 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Privilege escalation in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.

  31. CVE-2026-92054 8.8 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Privilege escalation in the Memory component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.

  32. CVE-2026-92055 8.8 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Privilege escalation in the DevTools component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.

  33. CVE-2026-92056 8.8 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Use-after-free in the Graphics: Text component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.

  34. CVE-2026-92033 8.8 Élevée

    Mozilla Firefox · Mozilla firefox mobile

    Privilege escalation in Firefox for Android. This vulnerability was fixed in Firefox 156.

  35. CVE-2026-92032 9.6 Critique

    Mozilla Firefox · Mozilla Thunderbird

    Sandbox escape due to invalid pointer in the Graphics component. This vulnerability was fixed in Firefox 156, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.

  36. CVE-2026-92034 9.1 Critique

    Mozilla Firefox · Mozilla Thunderbird

    Site isolation issue in the Graphics component. This vulnerability was fixed in Firefox 156 and Thunderbird 156.

  37. CVE-2026-92035 9.6 Critique

    Mozilla Firefox · Mozilla Thunderbird

    Sandbox escape due to incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Thunderbird 140.17, Firefox 156, Firefox ESR 153.3, Thunderbird 156, Thunderbird 153.3, Firefox ESR 115.42, and Firefox ESR 140.17.

  38. CVE-2026-92036 9.8 Critique

    Mozilla Firefox · Mozilla Thunderbird

    Incorrect boundary conditions in the Networking: HTTP component. This vulnerability was fixed in Firefox 156 and Thunderbird 156.

  39. CVE-2026-92037 9.8 Critique

    Mozilla Firefox · Mozilla Thunderbird

    Incorrect boundary conditions in the DOM: Animation component. This vulnerability was fixed in Firefox 156 and Thunderbird 156.

  40. CVE-2026-92038 9.1 Critique

    Mozilla Firefox · Mozilla Thunderbird

    Mitigation bypass in the Remote Settings Client component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.

  41. CVE-2026-92039 6.3 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Mitigation bypass in the DOM: Notifications component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.

  42. CVE-2026-92040 8.8 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 156 and Thunderbird 156.

  43. CVE-2026-92041 9.1 Critique

    Mozilla Firefox · Mozilla Thunderbird

    Mitigation bypass in the DOM: Networking component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.

  44. CVE-2026-92042 7.5 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Race condition in the DOM: Content Processes component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.

  45. CVE-2026-92043 8.8 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Privilege escalation due to incorrect boundary conditions in the Audio/Video component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.

  46. CVE-2026-92044 7.5 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Information disclosure in the Networking: HTTP component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.

  47. CVE-2026-92045 9.6 Critique

    Mozilla Firefox · Mozilla Thunderbird

    Sandbox escape due to incorrect boundary conditions in the WebRTC component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.

  48. CVE-2026-92046 8.8 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Use-after-free in the Graphics component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.

  49. CVE-2026-86853 4.3 Moyenne

    Mozilla Firefox for iOS · Mozilla firefox mobile

    A malicious webpage could repeatedly trigger external URL schemes, causing system prompts or external application launches. This could make Firefox for iOS temporarily unusable until the page is closed. This vulnerability was fixed in Firefox for iOS 155.1.

  50. CVE-2026-100810 9.8 Critique

    Mozilla Thunderbird · Mozilla Firefox

    Other issue in the DevTools component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.

  51. CVE-2026-100811 9.6 Critique

    Mozilla Thunderbird · Mozilla Firefox

    Sandbox escape due to use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, and Firefox ESR 140.17.

  52. CVE-2026-100812 6.5 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Denial-of-service in the Graphics component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157.

  53. CVE-2026-100813 8.8 Élevée

    Mozilla Thunderbird · Mozilla Firefox

    Invalid pointer in the JavaScript Engine: JIT component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.

  54. CVE-2026-100814 8.8 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Incorrect boundary conditions in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157.

  55. CVE-2026-100815 8.8 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Use-after-free in the CSS Parsing and Computation component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157.

  56. CVE-2026-100816 8.1 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Site isolation issue in the DOM: Networking component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157.

  57. CVE-2026-100818 9.6 Critique

    Mozilla Thunderbird · Mozilla Firefox

    Sandbox escape due to use-after-free in the Widget: Gtk component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, and Firefox ESR 140.17.

  58. CVE-2026-100823 5.4 Moyenne

    Mozilla Firefox · Mozilla firefox mobile

    Spoofing issue in the Downloads component in Firefox for Android. This vulnerability was fixed in Firefox 157.

  59. CVE-2026-100777 8.8 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Use-after-free in the Graphics: Canvas2D 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.

  60. CVE-2026-100778 9.6 Critique

    Mozilla Firefox · Mozilla Thunderbird

    Sandbox escape due to use-after-free in the DOM: Core & HTML 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.

  61. CVE-2026-100779 8.8 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Use-after-free in the XSLT 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.

  62. CVE-2026-100780 8.8 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Use-after-free in the DOM: Core & HTML 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.

  63. CVE-2026-100781 9.6 Critique

    Mozilla Firefox · Mozilla Thunderbird

    Sandbox escape due to incorrect boundary conditions in the Graphics: WebRender 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.

  64. CVE-2026-100808 8.8 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Mitigation bypass in the DOM: Service Workers component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157.

  65. CVE-2026-100809 8.1 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Same-origin policy bypass in the DevTools component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157.

  66. CVE-2026-100819 9.6 Critique

    Mozilla Firefox · Mozilla Thunderbird

    Sandbox escape due to incorrect boundary conditions in the XPCOM 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.

  67. CVE-2026-100820 8.8 Élevée

    Mozilla Thunderbird · Mozilla Firefox

    Privilege escalation in the Address Bar component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, and Firefox ESR 140.17.

  68. CVE-2026-100832 8.8 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 140.17, Thunderbird 153.4, Firefox ESR 115.42, and Firefox ESR 140.17.

  69. CVE-2026-96869 4.3 Moyenne

    Mozilla Thunderbird · Mozilla Firefox

    Information disclosure in the Networking component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, and Firefox ESR 140.17.

  70. CVE-2026-100782 8.8 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Privilege escalation due to incorrect boundary conditions in the Graphics 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.

  71. CVE-2026-100783 4.3 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Uninitialized memory in the Audio/Video 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.

  72. CVE-2026-100784 8.8 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Use-after-free in the Layout: Text and Fonts 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.

  73. CVE-2026-100785 8.8 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Use-after-free in the DOM: Core & HTML 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.

  74. CVE-2026-100786 9.6 Critique

    Mozilla Firefox · Mozilla Thunderbird

    Sandbox escape due to use-after-free in the Graphics 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.

  75. CVE-2026-100787 9.6 Critique

    Mozilla Firefox · Mozilla Thunderbird

    Sandbox escape in the XUL component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157.