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8.8
CVSS
High

CVE-2023-21674

PUBLISHED

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

Exploited in the wild Low complexity No user interaction
Vendor
Microsoft
Product
Windows 10 Version 1809, Windows Server 2019, Windows Server 2019 (Server Core installation), Windows Server 2022, Windows 10 Version 20H2, Windows 11 version 21H2, Windows 10 Version 21H2, Windows 11 version 22H2, Windows 10 Version 22H2, Windows 10 Version 1507, Windows 10 Version 1607, Windows Server 2016, Windows Server 2016 (Server Core installation), Windows 8.1, Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation)
Published
Jan 10, 2023
EPSS
—

Description

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

windows cisa microsoft nessus_scanner

CVSS scores

CVSS v3.1 8.8 High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:F/RL:O/RC:C

Exploitation status

Exploited in the wild

Recorded 2023-01-10 00:00:00 UTC · Source

SSVC decision points

Exploitation
active
Automatable
No
Technical impact
total

References

Known exploited vulnerability sources

Catalogues that list this CVE as a known exploited vulnerability.

Source Added
CISA Jan 10, 2023

Scanner integrations

Scanner Reference Detected
Nessus https://www.tenable.com/plugins/nessus/169789 Jun 02, 2025

Potential proof of concepts

These PoCs are unverified and could contain malware. Use at your own risk.

hd3s5aa/CVE-2023-21674

github · Created 2024-03-07 05:43:48 UTC · 34 stars

Timeline

  • CVE ID Reserved

  • CVE Published to Public

  • Added to KEVIntel

  • Detected by Nessus