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Microsoft Patch Tuesday, April 2026: the CVEs

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Microsoft Patch Tuesday April 2026: the CVEs Microsoft published on 14 April 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: Mar 2026, Feb 2026, Jan 2026, Dec 2025, Nov 2025, Oct 2025, Sep 2025, Aug 2025, Jul 2025, Jun 2025, May 2025, Apr 2025. Other lists: CISA KEV list, CVE exploit search, Latest critical CVEs, Ransomware CVEs, New CVEs today, This week, Patch Tuesday

  1. 4.3CVE-2026-33829ExploitEPSS 3.6%

    Exposure of sensitive information to an unauthorized actor in Windows Snipping Tool allows an unauthorized attacker to perform spoofing over a network.

  2. 8.1CVE-2026-33827EPSS 0.9%

    Concurrent execution using shared resource with improper synchronization ('race condition') in Windows TCP/IP allows an unauthorized attacker to execute code over a network.

  3. 8.0CVE-2026-33826EPSS 0.6%

    Improper input validation in Windows Active Directory allows an authorized attacker to execute code over an adjacent network.

  4. 7.8CVE-2026-33825KEVEPSS 6.9%

    Insufficient granularity of access control in Microsoft Defender allows an authorized attacker to elevate privileges locally.

  5. 9.8CVE-2026-33824KEVEPSS 77%

    Double free in Windows IKE Extension allows an unauthorized attacker to execute code over a network.

  6. 6.1CVE-2026-33822EPSS 0.4%

    Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information locally.

  7. 8.8CVE-2026-33120EPSS 0.7%

    Untrusted pointer dereference in SQL Server allows an authorized attacker to execute code over a network.

  8. 7.5CVE-2026-33116EPSS 2.2%

    Loop with unreachable exit condition ('infinite loop') in .NET, .NET Framework, Visual Studio allows an unauthorized attacker to deny service over a network.

  9. 8.4CVE-2026-33115EPSS 0.3%

    Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally.

  10. 8.4CVE-2026-33114EPSS 0.3%

    Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute code locally.

  11. 7.0CVE-2026-33104EPSS 0.2%

    Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally.

  12. 5.5CVE-2026-33103EPSS 0.2%

    Improper access control in Microsoft Dynamics 365 (on-premises) allows an authorized attacker to disclose information locally.

  13. 7.8CVE-2026-33101EPSS 0.2%

    Use after free in Windows Print Spooler Components allows an authorized attacker to elevate privileges locally.

  14. 7.0CVE-2026-33100EPSS 0.2%

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

  15. 7.0CVE-2026-33099EPSS 0.2%

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

  16. 7.8CVE-2026-33098EPSS 0.3%

    Use after free in Windows Container Isolation FS Filter Driver allows an authorized attacker to elevate privileges locally.

  17. 7.5CVE-2026-33096EPSS 1.3%

    Out-of-bounds read in Windows HTTP.sys allows an unauthorized attacker to deny service over a network.

  18. 7.8CVE-2026-33095EPSS 0.4%

    Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally.

  19. 5.9CVE-2026-32226EPSS 0.6%

    Concurrent execution using shared resource with improper synchronization ('race condition') in .NET Framework allows an unauthorized attacker to deny service over a network.

  20. 8.8CVE-2026-32225EPSS 1.2%

    Improper neutralization of special elements used in a command ('command injection') in Windows Shell allows an unauthorized attacker to bypass a security feature over a network.

  21. 7.0CVE-2026-32224EPSS 0.3%

    Use after free in Windows Server Update Service allows an authorized attacker to elevate privileges locally.

  22. 6.8CVE-2026-32223EPSS 0.5%

    Heap-based buffer overflow in Windows USB Print Driver allows an unauthorized attacker to elevate privileges with a physical attack.

  23. 7.8CVE-2026-32222EPSS 0.3%

    Untrusted pointer dereference in Windows Win32K - ICOMP allows an authorized attacker to elevate privileges locally.

  24. 8.4CVE-2026-32221EPSS 0.3%

    Heap-based buffer overflow in Microsoft Graphics Component allows an unauthorized attacker to execute code locally.

  25. 4.4CVE-2026-32220EPSS 0.3%

    Improper access control in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to bypass a security feature locally.

  26. 7.0CVE-2026-32219EPSS 0.2%

    Double free in Microsoft Brokering File System allows an authorized attacker to elevate privileges locally.

  27. 5.5CVE-2026-32218EPSS 0.5%

    Insertion of sensitive information into log file in Windows Kernel allows an authorized attacker to disclose information locally.

  28. 5.5CVE-2026-32217EPSS 0.4%

    Insertion of sensitive information into log file in Windows Kernel allows an authorized attacker to disclose information locally.

  29. 5.5CVE-2026-32216EPSS 0.4%

    Null pointer dereference in Windows Redirected Drive Buffering allows an authorized attacker to deny service locally.

  30. 5.5CVE-2026-32215EPSS 0.4%

    Insertion of sensitive information into log file in Windows Kernel allows an authorized attacker to disclose information locally.

  31. 5.5CVE-2026-32214EPSS 0.2%

    Improper access control in Universal Plug and Play (upnp.dll) allows an authorized attacker to disclose information locally.

  32. 5.5CVE-2026-32212EPSS 0.3%

    Improper link resolution before file access ('link following') in Universal Plug and Play (upnp.dll) allows an authorized attacker to disclose information locally.

  33. 7.5CVE-2026-32203EPSS 2.0%

    Stack-based buffer overflow in .NET and Visual Studio allows an unauthorized attacker to deny service over a network.

  34. 4.3CVE-2026-32202KEVExploitEPSS 71%

    Protection mechanism failure in Windows Shell allows an unauthorized attacker to perform spoofing over a network.

  35. 6.5CVE-2026-32201KEVEPSS 44%

    Improper input validation in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.

  36. 7.8CVE-2026-32200EPSS 0.3%

    Use after free in Microsoft Office PowerPoint allows an unauthorized attacker to execute code locally.

  37. 7.8CVE-2026-32199EPSS 0.3%

    Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

  38. 7.8CVE-2026-32198EPSS 0.3%

    Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

  39. 7.8CVE-2026-32197EPSS 0.3%

    Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

  40. 6.1CVE-2026-32196EPSS 0.3%

    Improper neutralization of input during web page generation ('cross-site scripting') in Windows Admin Center allows an unauthorized attacker to perform spoofing over a network.

  41. 7.0CVE-2026-32195EPSS 0.3%

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

  42. 7.8CVE-2026-32192EPSS 2.0%

    Deserialization of untrusted data in Azure Monitor Agent allows an authorized attacker to elevate privileges locally.

  43. 8.4CVE-2026-32190EPSS 0.3%

    Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.

  44. 7.8CVE-2026-32189EPSS 0.4%

    Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

  45. 7.1CVE-2026-32188EPSS 0.4%

    Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.

  46. 7.8CVE-2026-32184EPSS 2.0%

    Deserialization of untrusted data in Microsoft High Performance Compute Pack (HPC) allows an authorized attacker to elevate privileges locally.

  47. 7.8CVE-2026-32183EPSS 0.6%

    Improper neutralization of special elements used in a command ('command injection') in Windows Snipping Tool allows an unauthorized attacker to execute code locally.

  48. 5.5CVE-2026-32181EPSS 0.4%

    Improper privilege management in Microsoft Windows allows an authorized attacker to deny service locally.

  49. 7.5CVE-2026-32178EPSS 2.4%

    Improper neutralization of special elements in .NET allows an unauthorized attacker to perform spoofing over a network.

  50. 7.8CVE-2026-32176EPSS 0.3%

    Improper neutralization of special elements used in an sql command ('sql injection') in SQL Server allows an authorized attacker to elevate privileges locally.

  51. 8.8CVE-2026-32171EPSS 0.4%

    Insufficiently protected credentials in Azure Logic Apps allows an authorized attacker to elevate privileges over a network.

  52. 7.8CVE-2026-32168EPSS 0.3%

    Improper input validation in Azure Monitor Agent allows an authorized attacker to elevate privileges locally.

  53. 7.8CVE-2026-32167EPSS 0.3%

    Improper neutralization of special elements used in an sql command ('sql injection') in SQL Server allows an authorized attacker to elevate privileges locally.

  54. 7.8CVE-2026-32165EPSS 0.2%

    Use after free in Windows User Interface Core allows an authorized attacker to elevate privileges locally.

  55. 7.8CVE-2026-32164EPSS 0.2%

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

  56. 7.8CVE-2026-32163EPSS 0.2%

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

  57. 8.4CVE-2026-32162EPSS 2.0%

    Acceptance of extraneous untrusted data with trusted data in Windows COM allows an unauthorized attacker to elevate privileges locally.

  58. 7.8CVE-2026-32160EPSS 0.3%

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

  59. 7.8CVE-2026-32159EPSS 0.2%

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

  60. 7.8CVE-2026-32158EPSS 0.2%

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

  61. 8.8CVE-2026-32157EPSS 0.8%

    Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.

  62. 7.4CVE-2026-32156EPSS 0.3%

    Use after free in Windows Universal Plug and Play (UPnP) Device Host allows an unauthorized attacker to execute code locally.

  63. 7.8CVE-2026-32155EPSS 0.3%

    Use after free in Desktop Window Manager allows an authorized attacker to elevate privileges locally.

  64. 7.8CVE-2026-32154EPSS 0.4%

    Use after free in Desktop Window Manager allows an authorized attacker to elevate privileges locally.

  65. 7.8CVE-2026-32153EPSS 0.2%

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

  66. 7.8CVE-2026-32152EPSS 0.5%

    Use after free in Desktop Window Manager allows an authorized attacker to elevate privileges locally.

  67. 6.5CVE-2026-32151EPSS 0.8%

    Exposure of sensitive information to an unauthorized actor in Windows Shell allows an authorized attacker to disclose information over a network.

  68. 7.0CVE-2026-32150EPSS 0.2%

    Concurrent execution using shared resource with improper synchronization ('race condition') in Function Discovery Service (fdwsd.dll) allows an authorized attacker to elevate privileges locally.

  69. 7.3CVE-2026-32149EPSS 0.3%

    Improper input validation in Windows Hyper-V allows an authorized attacker to execute code locally.

  70. 7.0CVE-2026-32093EPSS 1.2%

    Concurrent execution using shared resource with improper synchronization ('race condition') in Function Discovery Service (fdwsd.dll) allows an authorized attacker to elevate privileges locally.

  71. 7.0CVE-2026-32091EPSS 0.2%

    Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Brokering File System allows an unauthorized attacker to elevate privileges locally.

  72. 7.0CVE-2026-32090EPSS 0.2%

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

  73. 7.8CVE-2026-32089EPSS 0.3%

    Use after free in Windows Speech Brokered Api allows an authorized attacker to elevate privileges locally.

  74. 5.7CVE-2026-32088EPSS 0.2%

    Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Biometric Service allows an unauthorized attacker to bypass a security feature with a physical attack.

  75. 7.0CVE-2026-32087EPSS 0.3%

    Heap-based buffer overflow in Function Discovery Service (fdwsd.dll) allows an authorized attacker to elevate privileges locally.

  76. 7.0CVE-2026-32086EPSS 0.2%

    Concurrent execution using shared resource with improper synchronization ('race condition') in Function Discovery Service (fdwsd.dll) allows an authorized attacker to elevate privileges locally.

  77. 5.5CVE-2026-32085EPSS 0.5%

    Exposure of sensitive information to an unauthorized actor in Windows Remote Procedure Call allows an authorized attacker to disclose information locally.

  78. 5.5CVE-2026-32084EPSS 0.4%

    Exposure of sensitive information to an unauthorized actor in Windows File Explorer allows an authorized attacker to disclose information locally.

  79. 7.0CVE-2026-32083EPSS 0.2%

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

  80. 7.0CVE-2026-32082EPSS 0.2%

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

  81. 5.5CVE-2026-32081EPSS 0.4%

    Exposure of sensitive information to an unauthorized actor in Windows File Explorer allows an authorized attacker to disclose information locally.

  82. 7.0CVE-2026-32080EPSS 0.2%

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

  83. 5.5CVE-2026-32079EPSS 0.4%

    Exposure of sensitive information to an unauthorized actor in Windows File Explorer allows an authorized attacker to disclose information locally.

  84. 7.8CVE-2026-32078EPSS 0.3%

    Use after free in Windows Projected File System allows an authorized attacker to elevate privileges locally.

  85. 7.8CVE-2026-32077EPSS 0.3%

    Untrusted pointer dereference in Windows Universal Plug and Play (UPnP) Device Host allows an authorized attacker to elevate privileges locally.

  86. 7.8CVE-2026-32076EPSS 0.3%

    Out-of-bounds read in Windows Storage Spaces Controller allows an authorized attacker to elevate privileges locally.

  87. 7.0CVE-2026-32075EPSS 0.3%

    Use after free in Windows Universal Plug and Play (UPnP) Device Host allows an authorized attacker to elevate privileges locally.

  88. 7.8CVE-2026-32074EPSS 0.3%

    Double free in Windows Projected File System allows an authorized attacker to elevate privileges locally.

  89. 7.0CVE-2026-32073EPSS 0.4%

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

  90. 6.2CVE-2026-32072EPSS 0.3%

    Improper authentication in Windows Active Directory allows an unauthorized attacker to perform spoofing locally.

  91. 7.5CVE-2026-32071EPSS 1.1%

    Null pointer dereference in Windows Local Security Authority Subsystem Service (LSASS) allows an unauthorized attacker to deny service over a network.

  92. 7.0CVE-2026-32070EPSS 0.3%

    Use after free in Windows Common Log File System Driver allows an authorized attacker to elevate privileges locally.

  93. 7.8CVE-2026-32069EPSS 0.3%

    Double free in Windows Projected File System allows an authorized attacker to elevate privileges locally.

  94. 7.0CVE-2026-32068EPSS 0.2%

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

  95. 5.5CVE-2026-27931EPSS 0.5%

    Out-of-bounds read in Windows GDI allows an unauthorized attacker to disclose information locally.

  96. 5.5CVE-2026-27930EPSS 0.4%

    Out-of-bounds read in Windows GDI allows an unauthorized attacker to disclose information locally.

  97. 7.0CVE-2026-27929EPSS 0.2%

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

  98. 8.7CVE-2026-27928EPSS 0.4%

    Improper input validation in Windows Hello allows an unauthorized attacker to bypass a security feature over a network.

  99. 7.0CVE-2026-27927EPSS 0.2%

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

  100. 7.0CVE-2026-27926EPSS 0.2%

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