Microsoft Windows Win32K GRFX Privilege Escalation Vulnerability

Vulnerability

A use-after-free vulnerability has been identified in the Windows Win32K graphics component, allowing an unauthorized attacker to elevate privileges over a network. This vulnerability requires exploitation of a race condition to gain SYSTEM privileges.

Impact

Successful exploitation of this vulnerability could lead to unauthorized privilege escalation, allowing an attacker to gain SYSTEM rights.

Remediation

Security updates for this vulnerability are available through the Microsoft Update Catalog. Specific update details can be found in the Microsoft Knowledge Base articles KB5055521, KB5055547, KB5055523, KB5055557, KB5055561, and KB5055609.

Added: Jun 9, 2025, 7:46 PM
Updated: Jun 9, 2025, 7:46 PM

Vulnerability Rating

Custom Algorithm
spread
8.4
impact
7.5
exploitability
4.3
remediation
7.7
relevance
0.0
threat
0.0
urgency
2.9
incentive
1.7

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