Microsoft Windows DWM Core Library Privilege Escalation Vulnerability

Vulnerability

A use-after-free vulnerability has been identified in the Windows DWM Core Library, allowing an authorized attacker to locally elevate privileges. This vulnerability 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 download the security update for this vulnerability via the Microsoft Update Catalog. Specific update details can be found in the Microsoft Knowledge Base articles KB5094127 for Windows 10, KB5095051 for Windows 11, KB5094125 for Windows Server 2025, KB5094128 for Windows Server 2022, and KB5094123 for Windows Server 2019.

Added: Jun 9, 2026, 7:27 PM
Updated: Jun 9, 2026, 7:27 PM

Vulnerability Rating

Custom Algorithm
spread
8.4
impact
7.5
exploitability
3.3
remediation
7.7
relevance
9.4
threat
0.0
urgency
2.9
incentive
0.0

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.