Microsoft Windows Ancillary Function Driver for WinSock Privilege Escalation Vulnerability

A vulnerability allowing untrusted pointer dereference has been identified in the Windows Ancillary Function Driver for WinSock. This flaw enables an authorized attacker to locally elevate privileges. The vulnerability affects multiple Windows Server and Windows 10/11 versions.

Impact

Exploitation of this vulnerability could lead to unauthorized privilege escalation, allowing an attacker to gain SYSTEM privileges.

Remediation

Users can apply the security updates provided by Microsoft to address this vulnerability. These security updates are available through the Microsoft Update Catalog. Specific update details can be found in the Microsoft Knowledge Base articles KB5062552, KB5062554, KB5062572, KB5062557, KB5062624, KB5062632, KB5062619, KB5062618, KB5062592, KB5062597, and KB5062632.