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Microsoft Patch Tuesday, October 2026: the CVEs, page 8

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Microsoft Patch Tuesday October 2026: the CVEs Microsoft published on 13 October 2026, the second Tuesday of the month, with CVSS, EPSS, CISA KEV and public exploits to show what to patch first. Narrow it: in CISA KEV · critical. The same day: Adobe, SAP. Earlier: Sep 2026, Aug 2026, Jul 2026, Jun 2026, May 2026, Apr 2026, Mar 2026, Feb 2026, Jan 2026, Dec 2025, Nov 2025, Oct 2025. Other lists: CISA KEV list, CVE exploit search, Latest critical CVEs, Ransomware CVEs, New CVEs today, This week, Patch Tuesday

  1. 7.8CVE-2026-83829EPSS 0.4%

    Heap-based buffer overflow in Microsoft Windows Search Component allows an authorized attacker to elevate privileges locally.

  2. 7.8CVE-2026-83828EPSS 0.4%

    Heap-based buffer overflow in Windows MIDI Service Module allows an authorized attacker to elevate privileges locally.

  3. 7.0CVE-2026-83827EPSS 0.3%

    Heap-based buffer overflow in Windows Bluetooth Port Driver allows an authorized attacker to elevate privileges locally.

  4. 7.8CVE-2026-83826EPSS 0.4%

    Untrusted pointer dereference in Windows Error Reporting allows an authorized attacker to elevate privileges locally.

  5. 5.5CVE-2026-83798EPSS 0.2%

    Improper verification of cryptographic signature in Windows Update Stack allows an authorized attacker to perform spoofing locally.

  6. 8.8CVE-2026-83797EPSS 0.9%

    Out-of-bounds read in Windows Partition Management Driver allows an unauthorized attacker to execute code over a network.

  7. 7.8CVE-2026-83796EPSS 0.4%

    Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.

  8. 7.5CVE-2026-83795EPSS 1.3%

    Heap-based buffer overflow in Windows IKE Extension allows an unauthorized attacker to deny service over a network.

  9. 5.5CVE-2026-83794EPSS 0.4%

    Out-of-bounds read in Windows Portable Device MTP Driver allows an authorized attacker to disclose information locally.

  10. 7.0CVE-2026-83793EPSS 0.3%

    Improper link resolution before file access ('link following') in Windows Update Orchestrator Service allows an authorized attacker to elevate privileges locally.

  11. 7.8CVE-2026-83792EPSS 0.3%

    Incorrect authorization in Windows Device Install Service allows an authorized attacker to elevate privileges locally.

  12. 7.8CVE-2026-83791EPSS 0.3%

    Improper authorization in Windows Virtual Input allows an authorized attacker to elevate privileges locally.

  13. 7.0CVE-2026-83790EPSS 0.3%

    Use after free in Windows Hello allows an authorized attacker to elevate privileges locally.

  14. 9.8CVE-2026-83789EPSS 0.9%

    Heap-based buffer overflow in Windows SMB Client allows an unauthorized attacker to elevate privileges over a network.

  15. 4.6CVE-2026-83788EPSS 0.5%

    Buffer over-read in Windows RNDIS allows an unauthorized attacker to disclose information with a physical attack.

  16. 5.5CVE-2026-83787EPSS 0.3%

    Insufficient verification of data authenticity in Windows DHCP Server allows an authorized attacker to bypass a security feature locally.

  17. 4.7CVE-2026-83786EPSS 0.7%

    Generation of error message containing sensitive information in Windows NTFS allows an authorized attacker to disclose information locally.

  18. 7.0CVE-2026-83785EPSS 0.3%

    Use after free in Windows COM+ Event System Service allows an authorized attacker to elevate privileges locally.

  19. 8.8CVE-2026-83784EPSS 1.1%

    Absolute path traversal in Windows Encrypting File System (EFS) allows an authorized attacker to elevate privileges over a network.

  20. 7.8CVE-2026-83783EPSS 0.4%

    Heap-based buffer overflow in Windows Management Instrumentation allows an authorized attacker to elevate privileges locally.

  21. 9.8CVE-2026-83782EPSS 1.0%

    Heap-based buffer overflow in Windows Shell allows an unauthorized attacker to execute code over a network.

  22. 7.8CVE-2026-83781EPSS 0.4%

    Improper null termination in Windows Program Compatibility Assistant Service allows an authorized attacker to elevate privileges locally.

  23. 9.8CVE-2026-83780EPSS 1.1%

    Use after free in Windows CCFFilter Driver allows an unauthorized attacker to execute code over a network.

  24. 7.8CVE-2026-83779EPSS 0.4%

    Heap-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally.

  25. 8.8CVE-2026-83778EPSS 0.9%

    Heap-based buffer overflow in Microsoft Internet Messaging API allows an unauthorized attacker to execute code over a network.

  26. 8.8CVE-2026-83777EPSS 0.6%

    Heap-based buffer overflow in Windows Bluetooth Service allows an unauthorized attacker to elevate privileges over an adjacent network.

  27. 6.8CVE-2026-83776EPSS 0.5%

    Out-of-bounds read in Microsoft Bluetooth Driver allows an unauthorized attacker to elevate privileges with a physical attack.

  28. 7.0CVE-2026-83775EPSS 0.2%

    Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Installer allows an authorized attacker to elevate privileges locally.

  29. 4.7CVE-2026-83774EPSS 0.7%

    Exposure of sensitive system information to an unauthorized control sphere in Windows Win32 Kernel Subsystem allows an authorized attacker to disclose information locally.

  30. 5.5CVE-2026-83773EPSS 0.9%

    Exposure of sensitive system information to an unauthorized control sphere in Windows MIDI Service Module allows an authorized attacker to disclose information locally.

  31. 8.8CVE-2026-83771EPSS 0.6%

    Use after free in Windows Camera Frame Server Monitor allows an unauthorized attacker to elevate privileges over an adjacent network.

  32. 9.8CVE-2026-83770EPSS 1.1%

    Heap-based buffer overflow in Windows Text Shaping allows an unauthorized attacker to execute code over a network.

  33. 7.8CVE-2026-83769EPSS 0.4%

    Use after free in OpenSSH for Windows allows an authorized attacker to elevate privileges locally.

  34. 7.8CVE-2026-83768EPSS 0.4%

    Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.

  35. 7.8CVE-2026-83767EPSS 0.3%

    Stack-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally.

  36. 4.2CVE-2026-83766EPSS 0.4%

    Incorrect authorization in Windows Hyper-V allows an authorized attacker to bypass a security feature over an adjacent network.

  37. 5.5CVE-2026-83765EPSS 0.4%

    Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to disclose information locally.

  38. 5.5CVE-2026-83764EPSS 0.3%

    Incorrect authorization in Windows Clipboard User Service allows an authorized attacker to disclose information locally.

  39. 7.8CVE-2026-83763EPSS 0.4%

    Access of resource using incompatible type ('type confusion') in Windows Input System allows an authorized attacker to elevate privileges locally.

  40. 7.8CVE-2026-83762EPSS 0.4%

    Use after free in Windows Win32K allows an authorized attacker to elevate privileges locally.

  41. 7.8CVE-2026-83761EPSS 0.4%

    Use after free in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.

  42. 5.5CVE-2026-83760EPSS 0.4%

    Out-of-bounds read in Microsoft Bluetooth Driver allows an authorized attacker to disclose information locally.

  43. 8.8CVE-2026-83759EPSS 0.9%

    Improper control of generation of code ('code injection') in Windows Encrypting File System (EFS) allows an authorized attacker to execute code over a network.

  44. 7.8CVE-2026-83758EPSS 0.4%

    Heap-based buffer overflow in Windows Error Reporting allows an authorized attacker to execute code locally.

  45. 7.8CVE-2026-83757EPSS 0.4%

    Heap-based buffer overflow in Windows Win32K allows an authorized attacker to elevate privileges locally.

  46. 7.8CVE-2026-83756EPSS 0.3%

    Use after free in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.

  47. 5.5CVE-2026-83755EPSS 0.5%

    Use of uninitialized resource in Windows Win32K allows an authorized attacker to disclose information locally.

  48. 7.5CVE-2026-83754EPSS 0.7%

    Heap-based buffer overflow in OpenSSH for Windows allows an unauthorized attacker to execute code over a network.

  49. 7.8CVE-2026-83753EPSS 0.4%

    Heap-based buffer overflow in Windows Camera Frame Server Monitor allows an authorized attacker to elevate privileges locally.

  50. 7.0CVE-2026-83752EPSS 0.3%

    Use after free in Windows Installer allows an authorized attacker to elevate privileges locally.

  51. 7.0CVE-2026-83751EPSS 0.3%

    Use after free in Windows MIDI Service Module allows an authorized attacker to elevate privileges locally.

  52. 7.0CVE-2026-83750EPSS 0.2%

    Time-of-check time-of-use (toctou) race condition in Windows Error Reporting allows an authorized attacker to elevate privileges locally.

  53. 7.0CVE-2026-83749EPSS 0.3%

    Use after free in Windows Overlay Filter allows an authorized attacker to elevate privileges locally.

  54. 9.8CVE-2026-83748EPSS 0.9%

    Heap-based buffer overflow in Windows Error Reporting allows an unauthorized attacker to execute code over a network.

  55. 5.5CVE-2026-83747EPSS 0.5%

    Out-of-bounds read in Windows Error Reporting allows an authorized attacker to disclose information locally.

  56. 8.1CVE-2026-83746EPSS 1.1%

    Absolute path traversal in Skype for Business and Microsoft Lync allows an authorized attacker to elevate privileges over a network.

  57. 7.8CVE-2026-83741EPSS 0.3%

    Use after free in Internet Explorer allows an authorized attacker to elevate privileges locally.

  58. 7.0CVE-2026-83740EPSS 0.3%

    Use after free in Windows Hello allows an authorized attacker to elevate privileges locally.

  59. 7.5CVE-2026-83739EPSS 0.5%

    Use after free in Windows Bluetooth Service allows an unauthorized attacker to execute code over an adjacent network.

  60. 7.0CVE-2026-83738EPSS 0.3%

    Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

  61. 5.5CVE-2026-83737EPSS 0.5%

    Out-of-bounds read in Windows NTFS allows an authorized attacker to disclose information locally.

  62. 5.5CVE-2026-83736EPSS 0.5%

    Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.

  63. 7.8CVE-2026-83735EPSS 0.4%

    Release of invalid pointer or reference in Windows Kernel allows an authorized attacker to elevate privileges locally.

  64. 5.5CVE-2026-83733EPSS 0.5%

    Out-of-bounds read in Windows Print Spooler Components allows an authorized attacker to disclose information locally.

  65. 7.8CVE-2026-83732EPSS 0.4%

    Use after free in Windows Win32K allows an authorized attacker to elevate privileges locally.

  66. 8.8CVE-2026-83728EPSS 0.3%

    Improper validation of syntactic correctness of input in Windows Hyper-V allows an authorized attacker to perform spoofing locally.

  67. 7.8CVE-2026-83727EPSS 0.4%

    Buffer over-read in Windows Overlay Filter allows an authorized attacker to elevate privileges locally.

  68. 7.8CVE-2026-83726EPSS 0.4%

    Use after free in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.

  69. 8.8CVE-2026-83725EPSS 0.8%

    Heap-based buffer overflow in Microsoft Windows Search Component allows an unauthorized attacker to execute code over a network.

  70. 7.0CVE-2026-83724EPSS 0.3%

    Heap-based buffer overflow in Windows Management Instrumentation allows an authorized attacker to elevate privileges locally.

  71. 5.5CVE-2026-83723EPSS 0.5%

    Use of uninitialized resource in Windows Event Logging Service allows an authorized attacker to disclose information locally.

  72. 7.0CVE-2026-83722EPSS 0.2%

    Use after free in Microsoft Local Security Authority Server (lsasrv) allows an authorized attacker to elevate privileges locally.

  73. 7.8CVE-2026-83721EPSS 0.4%

    Use after free in Windows Win32K allows an authorized attacker to elevate privileges locally.

  74. 7.0CVE-2026-83720EPSS 0.3%

    Use after free in Windows Kerberos allows an authorized attacker to elevate privileges locally.

  75. 5.5CVE-2026-83719EPSS 0.4%

    Buffer over-read in Servicing Stack Updates allows an authorized attacker to disclose information locally.

  76. 7.0CVE-2026-83718EPSS 0.3%

    Use after free in Windows Installer allows an authorized attacker to elevate privileges locally.

  77. 7.0CVE-2026-83717EPSS 0.3%

    Use after free in Windows Installer allows an authorized attacker to elevate privileges locally.

  78. 8.8CVE-2026-83716EPSS 0.4%

    Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to execute code locally.

  79. 7.1CVE-2026-83715EPSS 0.3%

    Missing authentication for critical function in Windows Error Reporting allows an authorized attacker to perform tampering locally.

  80. 5.5CVE-2026-83714EPSS 0.4%

    Use of uninitialized resource in Windows HTTP.sys allows an authorized attacker to disclose information locally.

  81. 5.5CVE-2026-83713EPSS 0.9%

    Out-of-bounds read in Windows Universal Disk Format File System Driver (UDFS) allows an authorized attacker to disclose information locally.

  82. 7.8CVE-2026-83712EPSS 0.4%

    Out-of-bounds write in Windows NTFS allows an authorized attacker to execute code locally.

  83. 7.0CVE-2026-83710EPSS 0.3%

    Use after free in Windows Device Association Service allows an authorized attacker to elevate privileges locally.

  84. 7.8CVE-2026-83709EPSS 0.4%

    Heap-based buffer overflow in Windows NTLM allows an authorized attacker to elevate privileges locally.

  85. 7.0CVE-2026-83708EPSS 0.3%

    Stack-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally.

  86. 7.0CVE-2026-83707EPSS 0.3%

    Use after free in Windows Event Tracing allows an authorized attacker to elevate privileges locally.

  87. 6.7CVE-2026-83706EPSS 0.4%

    Use after free in Windows NTFS allows an authorized attacker to elevate privileges locally.

  88. 5.5CVE-2026-83705EPSS 0.9%

    Exposure of sensitive system information to an unauthorized control sphere in Windows HTTP.sys allows an authorized attacker to disclose information locally.

  89. 7.8CVE-2026-83704EPSS 0.5%

    Improper link resolution before file access ('link following') in Microsoft Windows Search Component allows an authorized attacker to elevate privileges locally.

  90. 6.5CVE-2026-83703EPSS 0.7%

    Out-of-bounds read in Windows Wi-Fi Driver allows an unauthorized attacker to deny service over an adjacent network.

  91. 7.0CVE-2026-83702EPSS 0.3%

    Use after free in Windows Installer allows an authorized attacker to elevate privileges locally.

  92. 7.0CVE-2026-83701EPSS 0.3%

    Use after free in Windows Now Playing Session Manager allows an authorized attacker to elevate privileges locally.

  93. 7.8CVE-2026-83700EPSS 0.4%

    Use after free in Windows Now Playing Session Manager allows an authorized attacker to elevate privileges locally.

  94. 7.8CVE-2026-83699EPSS 0.4%

    Stack-based buffer overflow in Windows Client-Side Caching (CSC) Service allows an authorized attacker to elevate privileges locally.

  95. 7.8CVE-2026-83698EPSS 0.4%

    Heap-based buffer overflow in Windows Client-Side Caching (CSC) Service allows an authorized attacker to elevate privileges locally.

  96. 4.7CVE-2026-83697EPSS 0.2%

    Time-of-check time-of-use (toctou) race condition in Windows Modern Device Management (MDM) allows an authorized attacker to perform tampering locally.

  97. 7.0CVE-2026-83696EPSS 0.3%

    Use after free in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.

  98. 5.5CVE-2026-83695EPSS 0.5%

    Use of uninitialized resource in Windows Event Logging Service allows an authorized attacker to disclose information locally.

  99. 7.0CVE-2026-83694EPSS 0.3%

    Out-of-bounds read in Windows Volume Manager Extension Driver allows an authorized attacker to elevate privileges locally.

  100. 9.8CVE-2026-83693EPSS 1.1%

    Heap-based buffer overflow in Windows Error Reporting allows an unauthorized attacker to execute code over a network.