Windows Ancillary Function Driver for WinSock Privilege Escalation Risk

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7.0

Windows Ancillary Function Driver for WinSock Privilege Escalation Risk

CVE-2026-25179

Summary

The Windows Ancillary Function Driver for WinSock does not properly check some types of input. This could allow a malicious user with certain permissions to gain higher-level access to a system. Update the Windows Ancillary Function Driver for WinSock to the latest version to mitigate this risk.

Original title

Improper validation of specified type of input in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

Original description

Improper validation of specified type of input in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

nvd CVSS3.1 7.0

Vulnerability type

CWE-1287

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-25179

Published: 10 Mar 2026 · Updated: 14 Mar 2026 · First seen: 11 Mar 2026