Microsoft Windows User Interface Core Relative Path Traversal Privilege Escalation Vulnerability

Vulnerability

A relative path traversal vulnerability has been identified in Windows User Interface Core, allowing an authorized attacker to locally elevate privileges. This vulnerability affects multiple versions of Windows 11 and Windows Server 2025.

Impact

Exploitation of this vulnerability could lead to unauthorized privilege escalation, allowing an attacker to gain SYSTEM privileges and delete any system files.

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 KB5101649, KB5095051, and KB5099536.

Added: Jul 14, 2026, 11:13 PM
Updated: Jul 14, 2026, 11:13 PM

Vulnerability Rating

Custom Algorithm
spread
8.4
impact
7.5
exploitability
3.3
remediation
7.7
relevance
9.6
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.