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High severity7.8CISA KEVNVD Advisory· Published Dec 15, 2021· Updated Jun 17, 2026

CVE-2021-43226

CVE-2021-43226

Description

Windows Common Log File System Driver Elevation of Privilege Vulnerability

Affected products

42
  • Microsoft/Windows 10 19095 versions
    cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:x64:*+ 4 more
    • cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:x64:*range: <10.0.10240.19145
    • cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:x86:*range: <10.0.10240.19145
    • cpe:2.3:o:microsoft:windows_10_1507:10.0.10240.19145:*:*:*:*:*:x86:*range: 10.0.0
    • cpe:2.3:o:microsoft:windows_10_1909:*:*:*:*:*:*:*:*range: <10.0.18363.1977
    • cpe:2.3:o:microsoft:windows_10_1909:10.0.18363.1977:*:*:*:*:*:x86:*range: 10.0.0
  • Microsoft/Windows 10 16078 versions
    cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:*+ 7 more
    • cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:*range: <10.0.14393.4825
    • cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:*range: <10.0.14393.4825
    • cpe:2.3:o:microsoft:windows_10_1607:10.0.14393.4825:*:*:*:*:*:x86:*range: 10.0.0
    • cpe:2.3:o:microsoft:windows_10_20H2:10.0.19042.1415:*:*:*:*:*:x86:*range: 10.0.0
    • cpe:2.3:o:microsoft:windows_10_20h2:*:*:*:*:*:*:arm64:*range: <10.0.19042.1415
    • cpe:2.3:o:microsoft:windows_10_20h2:*:*:*:*:*:*:x86:*range: <10.0.19042.1415
    • cpe:2.3:o:microsoft:windows_10_21H2:10.0.19044.1415:*:*:*:*:*:x86:*range: 10.0.0
    • cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:*:*range: <10.0.19044.1415
  • Microsoft/Windows 10 18093 versions
    cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:*:*+ 2 more
    • cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:*:*range: <10.0.17763.2366
    • cpe:2.3:o:microsoft:windows_10_1809:10.0.17763.2366:*:*:*:*:*:x86:*range: 10.0.0
    • cpe:2.3:o:microsoft:windows_10_1809:10.0.19041.1415:*:*:*:*:*:x64:*range: 10.0.0
  • Microsoft/Windows 10 2004
    cpe:2.3:o:microsoft:windows_10_2004:*:*:*:*:*:*:*:*
    Range: <10.0.19041.1415
  • Microsoft/Windows 10 21h1v52 versions
    cpe:2.3:o:microsoft:windows_10_21H1:10.0.19043.1415:*:*:*:*:*:x64:*+ 1 more
    • cpe:2.3:o:microsoft:windows_10_21H1:10.0.19043.1415:*:*:*:*:*:x64:*range: 10.0.0
    • cpe:2.3:o:microsoft:windows_10_21h1:*:*:*:*:*:*:*:*range: <10.0.19043.1415
  • Microsoft/Windows 11 21h2v52 versions
    cpe:2.3:o:microsoft:windows_11_21H2:10.0.22000.376:*:*:*:*:*:x64:*+ 1 more
    • cpe:2.3:o:microsoft:windows_11_21H2:10.0.22000.376:*:*:*:*:*:x64:*range: 10.0.0
    • cpe:2.3:o:microsoft:windows_11_21h2:*:*:*:*:*:*:*:*range: <10.0.22000.376
  • Microsoft/Windows 73 versions
    cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:*+ 2 more
    • cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:*
    • cpe:2.3:o:microsoft:windows_7:6.1.7601.25796:sp1:*:*:*:*:x64:*range: 6.1.0
    • cpe:2.3:o:microsoft:windows_7:6.1.7601.25796:sp1:*:*:*:*:x86:*range: 6.1.0
  • Microsoft/Windows 8.12 versions
    cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:*
    • cpe:2.3:o:microsoft:windows_8.1:6.3.9600.20207:*:*:*:*:*:x86:*range: 6.3.0
  • Microsoft/Windows Rt 8.1
    cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*
  • Microsoft/Windows Server 2004
    cpe:2.3:o:microsoft:windows_server_2004:*:*:*:*:*:*:*:*
    Range: <10.0.19041.1415
  • Microsoft/Windows Server 20083 versions
    cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:x64:*+ 2 more
    • cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:x64:*
    • cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:x86:*
    • cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*
  • Microsoft/Windows Server 20123 versions
    cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*+ 2 more
    • cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
    • cpe:2.3:o:microsoft:windows_server_2012:6.2.9200.23545:*:*:*:*:*:x64:*range: 6.2.0
    • cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
  • Microsoft/Windows Server 20162 versions
    cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*range: <10.0.14393.4825
    • cpe:2.3:o:microsoft:windows_server_2016:10.0.14393.4825:*:*:*:*:*:*:*range: 10.0.0
  • Microsoft/Windows Server 20192 versions
    cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*range: <10.0.17763.2366
    • cpe:2.3:o:microsoft:windows_server_2019:10.0.17763.2366:*:*:*:*:*:*:*range: 10.0.0
  • Microsoft/Windows Server 20032 versions
    cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*range: <10.0.20348.405
    • cpe:2.3:o:microsoft:windows_server_2022:10.0.20348.405:*:*:*:*:*:*:*range: 10.0.0
  • Microsoft/Windows Server 20h2
    cpe:2.3:o:microsoft:windows_server_20h2:*:*:*:*:*:*:*:*
    Range: <10.0.19042.1415
  • Microsoft/Windows Common Log File System Driverllm-fuzzy

Patches

Vulnerability mechanics

References

2

News mentions

0

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CVE-2021-43226 · High · VYPR