Microsoft Windows Kernel Privilege Escalation Vulnerability

Vulnerability

A heap-based buffer overflow vulnerability has been identified in the Windows Kernel. This vulnerability allows an authorized attacker to elevate privileges locally. It affects several different versions and ranges of Windows 10, Windows 11, Windows Server 2022, and Windows Server 2025.

Impact

Exploitation of this vulnerability could allow an attacker to elevate privileges from a Low Integrity Level in a contained execution environment to a Medium or High Integrity Level.

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 linked in the 'Security Updates' section.

Added: May 12, 2026, 8:15 PM
Updated: May 12, 2026, 8:15 PM

Vulnerability Rating

Custom Algorithm
spread
8.4
impact
7.5
exploitability
3.3
remediation
7.7
relevance
8.1
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.