Veille CVE

Recherche « Mozilla firefox »

240 CVE

Critique 48 Élevée 116 Moyenne 69 Faible 0 Non évaluée 7 Exploitées (KEV) Tri : plus récentes « Mozilla firefox » ✕
  1. CVE-2026-113470 5.4 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Cryptographic issue in the Security Block-lists, Allow-lists, and other State component. This vulnerability was fixed in Firefox 158.0.1, Firefox ESR 153.5.1, Firefox ESR 115.43.1, Thunderbird 158.0.1, Thunderbird 153.5.1, and Firefox 158.0.2.

  2. CVE-2026-113401 6.5 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Denial-of-service in the PDF Viewer component. This vulnerability was fixed in Firefox 158.0.1 and Thunderbird 158.0.1.

  3. CVE-2026-113400 5.4 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Uninitialized memory in the Audio/Video: cubeb component. This vulnerability was fixed in Firefox 158.0.1 and Thunderbird 158.0.1.

  4. CVE-2026-113399 – Non évaluée

    Mozilla Firefox · Mozilla Thunderbird

    Incorrect boundary conditions in the SVG component. This vulnerability was fixed in Firefox 158.0.1 and Thunderbird 158.0.1.

  5. CVE-2026-109783 – Non évaluée

    Mozilla Firefox · Mozilla Thunderbird

    Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox ESR 153.5 and Thunderbird 153.5.

  6. CVE-2026-109782 – Non évaluée

    Mozilla Firefox · Mozilla Thunderbird

    Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox ESR 153.5 and Thunderbird 153.5.

  7. CVE-2026-109781 6.5 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Denial-of-service in the Printing: Output component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  8. CVE-2026-109780 – Non évaluée

    Mozilla Firefox · Mozilla Thunderbird

    Mitigation bypass in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 158 and Thunderbird 158.

  9. CVE-2026-109779 4.2 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Race condition in the Networking: DNS component. This vulnerability was fixed in Firefox 158 and Thunderbird 158.

  10. CVE-2026-109778 8.8 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Privilege escalation in the WebExtensions component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  11. CVE-2026-109777 4.3 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Information disclosure in the Storage: IndexedDB component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  12. CVE-2026-109776 4.2 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Race condition in the XPCOM component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  13. CVE-2026-109775 6.5 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Denial-of-service in the WebRTC component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  14. CVE-2026-109774 – Non évaluée

    Mozilla Firefox · Mozilla Thunderbird

    Invalid pointer, undefined behavior in the DOM: Notifications component. This vulnerability was fixed in Firefox 158 and Thunderbird 158.

  15. CVE-2026-109773 6.5 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Denial-of-service in the Sync component. This vulnerability was fixed in Firefox 158 and Thunderbird 158.

  16. CVE-2026-109772 – Non évaluée

    Mozilla Firefox · Mozilla Thunderbird

    Same-origin policy bypass in the DevTools component. This vulnerability was fixed in Firefox 158 and Thunderbird 158.

  17. CVE-2026-109771 4.3 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Information disclosure in the WebRTC: Networking component. This vulnerability was fixed in Firefox 158 and Thunderbird 158.

  18. CVE-2026-109770 6.1 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Spoofing issue in the DOM: Web Serial component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  19. CVE-2026-109769 4.3 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Information disclosure in the Networking: Cache component. This vulnerability was fixed in Firefox 158 and Thunderbird 158.

  20. CVE-2026-109768 6.5 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Denial-of-service in the Site Reports component. This vulnerability was fixed in Firefox 158 and Thunderbird 158.

  21. CVE-2026-109767 4.3 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Information disclosure in the Networking component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  22. CVE-2026-109766 8.1 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Mitigation bypass in the Enterprise Policies component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  23. CVE-2026-109765 4.2 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Race condition, use-after-free in the Graphics: Text component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  24. CVE-2026-109764 5.4 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Mitigation bypass in the Enterprise Policies component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  25. CVE-2026-109763 – Non évaluée

    Mozilla Firefox · Mozilla Thunderbird

    Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  26. CVE-2026-109762 8.8 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Incorrect boundary conditions in the SVG component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  27. CVE-2026-109761 5.4 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 158 and Thunderbird 158.

  28. CVE-2026-109760 8.1 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Mitigation bypass in the Networking: HTTP component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  29. CVE-2026-109759 8.1 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Site isolation issue in the Networking component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  30. CVE-2026-109757 8.3 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Sandbox escape due to race condition in the Networking component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  31. CVE-2026-109756 8.8 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Privilege escalation in the DOM: Navigation component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  32. CVE-2026-109755 9.6 Critique

    Mozilla Firefox · Mozilla Thunderbird

    Sandbox escape in the DOM: Content Processes component. This vulnerability was fixed in Firefox 158 and Thunderbird 158.

  33. CVE-2026-109754 8.1 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Incorrect boundary conditions in the DOM: Editor component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  34. CVE-2026-109753 8.1 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Incorrect boundary conditions in the Layout component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  35. CVE-2026-109752 5.4 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Use-after-free in the DOM: Workers component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  36. CVE-2026-109751 4.3 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Information disclosure in the Networking component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  37. CVE-2026-109750 9.6 Critique

    Mozilla Firefox · Mozilla Thunderbird

    Site isolation issue in the DOM: Web Authentication component. This vulnerability was fixed in Firefox 158 and Thunderbird 158.

  38. CVE-2026-109749 5.4 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 158 and Thunderbird 158.

  39. CVE-2026-109748 5.4 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 158 and Thunderbird 158.

  40. CVE-2026-109747 7.3 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Other issue in the Address Bar component. This vulnerability was fixed in Firefox 158 and Thunderbird 158.

  41. CVE-2026-109746 7.3 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 158 and Thunderbird 158.

  42. CVE-2026-109745 9.6 Critique

    Mozilla Firefox · Mozilla Thunderbird

    Sandbox escape due to uninitialized memory in the DOM: Web Serial component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  43. CVE-2026-109744 8.1 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Other issue in the DOM: File component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  44. CVE-2026-109743 8.8 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Privilege escalation in the Panning and Zooming component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  45. CVE-2026-109742 4.3 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Information disclosure in the PDF Viewer component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  46. CVE-2026-109741 5.4 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Use-after-free in the Storage: Bucket File System component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  47. CVE-2026-109740 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 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  48. CVE-2026-109739 8.8 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Privilege escalation in the WebExtensions component. This vulnerability was fixed in Firefox 158 and Thunderbird 158.

  49. CVE-2026-109738 5.4 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Use-after-free in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  50. CVE-2026-109737 8.1 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Mitigation bypass in the Enterprise Policies component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  51. CVE-2026-109736 8.1 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Frame poisoning in the Layout component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  52. CVE-2026-109735 5.4 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Use-after-free in the DOM: Animation component. This vulnerability was fixed in Firefox 158 and Thunderbird 158.

  53. CVE-2026-109734 8.1 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  54. CVE-2026-109733 8.1 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  55. CVE-2026-109732 5.4 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Use-after-free in the DOM: Streams component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  56. CVE-2026-109731 5.4 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Incorrect boundary conditions in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  57. CVE-2026-109730 8.8 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Integer overflow in the Graphics component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  58. CVE-2026-109729 5.4 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Use-after-free in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  59. CVE-2026-109728 5.4 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Use-after-free in the DOM: Animation component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  60. CVE-2026-109727 5.4 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Use-after-free in the Audio/Video component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  61. CVE-2026-109726 5.4 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Use-after-free in the SVG component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  62. CVE-2026-109725 5.4 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  63. CVE-2026-109724 5.4 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  64. CVE-2026-109723 5.4 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Integer overflow in the Layout: Text and Fonts component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  65. CVE-2026-109722 8.1 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  66. CVE-2026-109721 5.4 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Incorrect boundary conditions in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  67. CVE-2026-109720 7.1 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    JIT miscompilation in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  68. CVE-2026-109719 4.2 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Race condition, use-after-free in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  69. CVE-2026-109718 5.4 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Use-after-free in the XML component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  70. CVE-2026-109717 5.4 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Use-after-free in the DOM: Bindings (WebIDL) component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  71. CVE-2026-109716 8.1 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Incorrect boundary conditions in the JavaScript Engine component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  72. CVE-2026-109715 8.1 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Incorrect boundary conditions in the JavaScript Engine component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  73. CVE-2026-109714 5.4 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Incorrect boundary conditions in the Layout component. This vulnerability was fixed in Firefox 158 and Thunderbird 158.

  74. CVE-2026-109713 5.4 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Use-after-free in the Crash Reporting component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  75. CVE-2026-109712 7.1 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Sandbox escape due to uninitialized memory in the Graphics component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  76. CVE-2026-109711 5.4 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  77. CVE-2026-109710 5.4 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Use-after-free in the Graphics: Text component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  78. CVE-2026-109709 8.8 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Information disclosure, privilege escalation in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  79. CVE-2026-109708 9.6 Critique

    Mozilla Firefox · Mozilla Thunderbird

    Sandbox escape due to incorrect boundary conditions in the Networking component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  80. CVE-2026-109707 9.6 Critique

    Mozilla Firefox · Mozilla Thunderbird

    Sandbox escape due to use-after-free in the Networking component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  81. CVE-2026-109706 5.4 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Use-after-free in the Storage: IndexedDB component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  82. CVE-2026-109705 9.6 Critique

    Mozilla Firefox · Mozilla Thunderbird

    Sandbox escape, site isolation issue due to incorrect boundary conditions, use-after-free in the Networking component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  83. CVE-2026-109704 8.8 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Privilege escalation in the Application Update component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

  84. CVE-2026-103418 8.8 Élevée

    Mozilla Firefox for iOS

    Firefox for iOS directly interpolated the page’s HTML language attribute into translation JavaScript, allowing attacker-controlled markup to execute code in Firefox’s privileged content world and bypass the page’s Content Security Policy. This vulnerability was fixed in Firefox for iOS 157.1.

  85. CVE-2026-103417 5.5 Moyenne

    Mozilla Firefox for iOS

    Firefox for iOS could autofill saved credentials into a new page if cross-origin navigation occurred while the saved-login UI was open. Autofill was not bound to the originating page or rejected when its origin changed. This vulnerability was fixed in Firefox for iOS 157.1.

  86. CVE-2026-106016 9.8 Critique

    Mozilla Firefox · Mozilla Thunderbird

    Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox 157.0.1 and Thunderbird 158.

  87. 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.

  88. 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.

  89. CVE-2026-100831 8.8 Élevée

    Mozilla Firefox · Mozilla 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.

  90. CVE-2026-100830 8.1 Élevée

    Mozilla Firefox · Mozilla 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.

  91. CVE-2026-100829 9.6 Critique

    Mozilla Firefox · Mozilla Thunderbird

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

  92. CVE-2026-100828 9.6 Critique

    Mozilla Firefox · Mozilla Thunderbird

    Mitigation bypass in the Bookmarks & History component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157.

  93. CVE-2026-100826 6.5 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

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

  94. CVE-2026-100825 8.8 Élevée

    Mozilla Firefox · Mozilla 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.

  95. CVE-2026-100824 8.8 Élevée

    Mozilla Firefox · Mozilla Thunderbird

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

  96. 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.

  97. CVE-2026-100822 5.4 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Spoofing issue in the Networking: HTTP component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157.

  98. CVE-2026-100821 4.7 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Site isolation issue in the Panning and Zooming 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.

  99. 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.

  100. 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.

  101. 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.

  102. CVE-2026-100817 5.4 Moyenne

    Mozilla Thunderbird · Mozilla Firefox

    Other issue in the JavaScript: WebAssembly component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.

  103. 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.

  104. 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.

  105. 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.

  106. 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.

  107. 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.

  108. 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.

  109. 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.

  110. 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.

  111. 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.

  112. CVE-2026-100807 8.8 Élevée

    Mozilla Thunderbird · Mozilla Firefox

    Privilege escalation in the DOM: Service Workers 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.

  113. CVE-2026-100806 4.3 Moyenne

    Mozilla Firefox · Mozilla Thunderbird

    Uninitialized memory in the Graphics: WebGPU component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157.

  114. CVE-2026-100805 7.5 Élevée

    Mozilla Thunderbird · Mozilla Firefox

    Race condition, use-after-free in the Audio/Video component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.

  115. CVE-2026-100804 9.6 Critique

    Mozilla Thunderbird · Mozilla Firefox

    Sandbox escape due to use-after-free in the Preferences: Backend component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.

  116. CVE-2026-100803 8.1 Élevée

    Mozilla Firefox · Mozilla 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.

  117. CVE-2026-100802 4.3 Moyenne

    Mozilla Thunderbird · Mozilla Firefox

    Uninitialized memory in the Graphics: WebGPU component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.

  118. CVE-2026-100801 8.8 Élevée

    Mozilla Thunderbird · Mozilla Firefox

    Privilege escalation in the DLL Services 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.

  119. CVE-2026-100800 9.6 Critique

    Mozilla Firefox · Mozilla Thunderbird

    Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157.

  120. CVE-2026-100799 4.3 Moyenne

    Mozilla Thunderbird · Mozilla Firefox

    Uninitialized memory in the Graphics: WebGPU component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.

  121. CVE-2026-100798 8.1 Élevée

    Mozilla Firefox · Mozilla 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.

  122. CVE-2026-100797 8.8 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Privilege escalation due to use-after-free 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.

  123. CVE-2026-100796 8.8 Élevée

    Mozilla Thunderbird · Mozilla Firefox

    Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.

  124. CVE-2026-100795 6.5 Moyenne

    Mozilla Thunderbird · Mozilla Firefox

    Denial-of-service in the Networking component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.

  125. CVE-2026-100794 9.6 Critique

    Mozilla Thunderbird · Mozilla Firefox

    Sandbox escape due to incorrect boundary conditions in the Internationalization 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.

  126. CVE-2026-100793 6.5 Moyenne

    Mozilla Thunderbird · Mozilla Firefox

    JIT miscompilation in the JavaScript Engine component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.

  127. CVE-2026-100792 7.1 Élevée

    Mozilla Thunderbird · Mozilla Firefox

    JIT miscompilation in the JavaScript: WebAssembly 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.

  128. CVE-2026-100791 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.

  129. CVE-2026-100790 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.

  130. CVE-2026-100789 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.

  131. CVE-2026-100788 9.8 Critique

    Mozilla Thunderbird · Mozilla Firefox

    Invalid pointer in the JavaScript: WebAssembly 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.

  132. 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.

  133. 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.

  134. 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.

  135. 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.

  136. 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.

  137. 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.

  138. 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.

  139. 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.

  140. 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.

  141. 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.

  142. 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.

  143. CVE-2026-100776 8.8 Élevée

    Mozilla Thunderbird · Mozilla Firefox

    Use-after-free in the JavaScript: WebAssembly 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.

  144. CVE-2026-100775 9.6 Critique

    Mozilla Firefox · Mozilla Thunderbird

    Sandbox escape 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.

  145. CVE-2026-100774 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.

  146. CVE-2026-100773 8.8 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Use-after-free in the Storage: IndexedDB 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.

  147. CVE-2026-100772 8.8 Élevée

    Mozilla Thunderbird · Mozilla Firefox

    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.

  148. CVE-2026-100771 8.1 Élevée

    Mozilla Firefox · Mozilla Thunderbird

    Undefined behavior in the DOM: Streams 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.

  149. CVE-2026-100770 9.6 Critique

    Mozilla Firefox · Mozilla Thunderbird

    Sandbox escape due to use-after-free in the DOM: Content Processes 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.

  150. CVE-2026-100769 8.8 Élevée

    Mozilla Thunderbird · Mozilla Firefox

    Use-after-free in the JavaScript: WebAssembly 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.