May 2026: Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
CVE-2026-41088 Published on May 12, 2026
Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
External control of file name or path in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
Weakness Type
External Control of File Name or Path
The software allows user input to control or influence paths or file names that are used in filesystem operations.
Products Associated with CVE-2026-41088
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Affected Versions
Microsoft Windows 10 Version 21H2:- Version 10.0.19044.0 and below 10.0.19044.7291 is affected.
- Version 10.0.19045.0 and below 10.0.19045.7291 is affected.
- Version 10.0.22631.0 and below 10.0.22631.7079 is affected.
- Version 10.0.22631.0 and below 10.0.22631.7079 is affected.
- Version 10.0.26100.0 and below 10.0.26100.8457 is affected.
- Version 10.0.26200.0 and below 10.0.26200.8457 is affected.
- Version 10.0.28000.0 and below 10.0.28000.2113 is affected.
- Version 10.0.20348.0 and below 10.0.20348.5139 is affected.
- Version 10.0.25398.0 and below 10.0.25398.2330 is affected.
- Version 10.0.26100.0 and below 10.0.26100.32860 is affected.
- Version 10.0.26100.0 and below 10.0.26100.32860 is affected.