Microsoft Windows Win32K Privilege Escalation Vulnerability

A type confusion vulnerability has been identified in the Windows Win32K component, specifically within ICOMP. This vulnerability allows an authorized attacker to elevate privileges locally. It affects multiple versions of Windows 10, Windows 11, Windows Server 2019, Windows Server 2022, and Windows Server 2025.

Impact

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

Remediation

Users can apply the security update for this vulnerability, which is available through the Microsoft Update Catalog. Specific update details can be found in the Microsoft Knowledge Base articles KB5087544, KB5087420, KB5087538, KB5087545, and KB5087539.