Windows 11 version 21H2

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• High 7.8
  CVE-2021-43226 Exploited · Ransomware Public exploit

  Windows Common Log File System Driver Elevation of Privilege Vulnerability

  Windows Common Log File System Driver Elevation of Privilege Vulnerability

  Microsoft Windows Server 2019 Windows Server 2019 (Server Core installation) Windows 10 Version 1809 Windows
  Dec 15, 2021

  KEV Oct 6, 2025
• High 8.1
  CVE-2021-43217 Public exploit

  Windows Encrypting File System (EFS) Remote Code Execution Vulnerability

  Windows Encrypting File System (EFS) Remote Code Execution Vulnerability

  Microsoft Windows Server 2019 Windows Server 2019 (Server Core installation) Windows 10 Version 1809 Windows
  Dec 15, 2021
• High 8.8
  CVE-2021-38666 Public exploit EPSS 15%

  Remote Desktop Client Remote Code Execution Vulnerability

  Remote Desktop Client Remote Code Execution Vulnerability

  Microsoft Windows Server 2019 Windows Server 2019 (Server Core installation) Windows 10 Version 1809 Windows
  Nov 10, 2021
• High 7.8
  CVE-2021-40449 Exploited · Ransomware Public exploit EPSS 82%

  Win32k Elevation of Privilege Vulnerability

  Win32k Elevation of Privilege Vulnerability

  Microsoft Windows Server 2019 Windows Server 2019 (Server Core installation) Windows 10 Version 1809 Windows
  Oct 13, 2021

  KEV Nov 17, 2021
• High 8.8
  CVE-2021-34527 Exploited · Ransomware Public exploit EPSS 100%

  Windows Print Spooler Remote Code Execution Vulnerability

  A remote code execution vulnerability exists when the Windows Print Spooler service improperly performs privileged file operations. An attacker who successfully exploited this vulnerability could run arbitrary code with SYSTEM privileges. An attacker could th…

  Microsoft Windows Server 2019 Windows Server 2019 (Server Core installation) Windows 10 Version 1809 Windows
  Jul 2, 2021

  KEV Nov 3, 2021