Microsoft Mailslot File System Privilege Escalation Vulnerability

Vulnerability

A use-after-free vulnerability has been identified in the Mailslot File System, allowing an authorized attacker to locally elevate privileges. This vulnerability arises from a race condition that can be exploited to gain SYSTEM privileges.

Impact

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

Added: Feb 10, 2026, 7:50 PM
Updated: Feb 11, 2026, 2:06 AM

Vulnerability Rating

Custom Algorithm
spread
0.0
impact
7.5
exploitability
2.9
remediation
0.0
relevance
2.9
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.