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Unrated severityCISA KEVNVD Advisory· Published Jan 10, 2023· Updated Oct 21, 2025

Windows Advanced Local Procedure Call (ALPC) Elevation of Privilege Vulnerability

CVE-2023-21674

Description

Windows Advanced Local Procedure Call (ALPC) Elevation of Privilege Vulnerability

Affected products

16
  • Microsoft/Windows 10 Version 1809v5
    Range: 10.0.0
  • Microsoft/Windows Server 2019v5
    Range: 10.0.17763.0
  • Microsoft/Windows Server 2019 (Server Core installation)v5
    Range: 10.0.17763.0
  • Microsoft/Windows Server 2022v5
    Range: 10.0.20348.0
  • Microsoft/Windows 10 Version 20H2v5
    Range: 10.0.0
  • Microsoft/Windows 11 version 21H2v5
    Range: 10.0.0
  • Microsoft/Windows 10 Version 21H2v5
    Range: 10.0.19043.0
  • Microsoft/Windows 11 version 22H2v5
    Range: 10.0.22621.0
  • Microsoft/Windows 10 Version 22H2v5
    Range: 10.0.19045.0
  • Microsoft/Windows 10 Version 1507v5
    Range: 10.0.10240.0
  • Microsoft/Windows 10 Version 1607v5
    Range: 10.0.14393.0
  • Microsoft/Windows Server 2016v5
    Range: 10.0.14393.0
  • Microsoft/Windows Server 2016 (Server Core installation)v5
    Range: 10.0.14393.0
  • Microsoft/Windows 8.1v5
    Range: 6.3.0
  • Microsoft/Windows Server 2012 R2v5
    Range: 6.3.9600.0
  • Microsoft/Windows Server 2012 R2 (Server Core installation)v5
    Range: 6.3.9600.0

Patches

0

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

1

News mentions

0

No linked articles in our index yet.