Microsoft Windows SMB Server Privilege Escalation Vulnerability

A race condition vulnerability has been identified in Windows SMB Server, allowing an authorized attacker to elevate privileges over the network. This issue arises from concurrent execution using shared resources without proper synchronization.

Impact

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

Remediation

Users can download the security update for this vulnerability via the Microsoft Update Catalog. Security update KB5073724 is available for various Windows 10 versions, while KB5073722 can be downloaded for Windows Server 2016. Windows Server 2022 users should look for KB5073457, and those on Windows Server 2019 can download KB5073723. For Windows 11, security update KB5074109 is available for both ARM64 and x64-based systems. Windows Server 2025 users can download KB5073379.