Microsoft Windows Ancillary Function Driver for WinSock Privilege Escalation Vulnerability

A race condition vulnerability has been identified in the Windows Ancillary Function Driver for WinSock. This vulnerability allows an authorized attacker to elevate privileges locally. The issue arises from concurrent execution using shared resources without proper synchronization, enabling the attacker to manipulate the execution flow and gain higher privileges.

Impact

Exploitation of this vulnerability could lead to unauthorized privilege escalation, allowing an attacker to gain SYSTEM privileges and execute code or access resources at a higher integrity level.

Remediation

Users can apply the security update provided by Microsoft to address this vulnerability. This security update is available through the Microsoft Update Catalog. Specific update details can be found in the Microsoft Knowledge Base articles KB5082200, KB5082142, KB5082123, KB5082063, KB5083769, KB5082198, and KB5082126.