Microsoft Windows Resilient File System Privilege Escalation Vulnerability

A vulnerability allowing untrusted pointer dereference has been identified in the Windows Resilient File System (ReFS). This flaw enables an authorized attacker to locally elevate privileges. The issue affects multiple versions of Windows 10, Windows 11, Windows Server 2016, Windows Server 2019, Windows Server 2022, and Windows Server 2025.

Impact

Exploitation of this vulnerability could lead to unauthorized privilege escalation.

Remediation

Users can download the security update for this vulnerability via the Microsoft Update Catalog. Specific update details can be found in the Microsoft Knowledge Base articles KB5099538, KB5099539, KB5101650, KB5099540, and KB5099536.