Veille CVE

Semaine du 12 octobre au 18 octobre 2026

81 CVE

Critique 7 Élevée 28 Moyenne 40 Faible 0 Non évaluée 6 Exploitées (KEV) Tri : plus récentes « Mozilla Thunderbird » ✕
  1. CVE-2026-110249 8.6 Élevée

    Mozilla Thunderbird

    A malicious, compromised, or MITM-controlled Exchange server can return a single well-formed SOAP response containing an element with enough attributes to keep Thunderbird's main thread CPU-bound for seconds to hours. This vulnerability was fixed in Thunderbird 158 and Thunderbird 153.5.

  2. CVE-2026-110247 8.4 Élevée

    Mozilla Thunderbird

    Several buffer-growth sites in libmime performed size arithmetic in 32-bit types without overflow checks. On a sufficiently large message the growth guard could fail open, or the buffer could be reallocated smaller than required, and a subsequent memcpy would then write attacker-controlled data across adjacent heap allocations. This vulnerability was fixed in Thunderbird 158.

  3. 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.

  4. 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.

  5. 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.

  6. 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.

  7. 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.

  8. 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.

  9. 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.

  10. 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.

  11. 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.

  12. 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.

  13. 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.

  14. 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.

  15. 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.

  16. 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.

  17. 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.

  18. 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.

  19. 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.

  20. 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.

  21. 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.

  22. 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.

  23. 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.

  24. 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.

  25. 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.

  26. 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.

  27. 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.

  28. 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.

  29. 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.

  30. 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.

  31. 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.

  32. 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.

  33. 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.

  34. 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.

  35. 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.

  36. 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.

  37. 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.

  38. 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.

  39. 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.

  40. 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.

  41. 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.

  42. 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.

  43. 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.

  44. 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.

  45. 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.

  46. 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.

  47. 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.

  48. 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.

  49. 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.

  50. 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.

  51. 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.

  52. 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.

  53. 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.

  54. 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.

  55. 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.

  56. 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.

  57. 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.

  58. 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.

  59. 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.

  60. 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.

  61. 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.

  62. 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.

  63. 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.

  64. 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.

  65. 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.

  66. 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.

  67. 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.

  68. 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.

  69. 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.

  70. 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.

  71. 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.

  72. 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.

  73. 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.

  74. 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.

  75. 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.

  76. 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.

  77. 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.

  78. 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.

  79. 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.

  80. 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.

  81. 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.