Microsoft Windows PrintWorkflowUserSvc Privilege Escalation Vulnerability

Vulnerability

A use-after-free vulnerability has been identified in the Windows PrintWorkflowUserSvc component, 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 privileges.

Remediation

Users can apply the security update for this vulnerability, which is available through the Microsoft Update Catalog. Specific update details can be found in the Microsoft Knowledge Base articles KB5066791, KB5066782, KB5066835, and KB5066793.

Added: Oct 14, 2025, 7:45 PM
Updated: Oct 14, 2025, 7:45 PM

Vulnerability Rating

Custom Algorithm
spread
0.0
impact
7.5
exploitability
2.9
remediation
0.0
relevance
0.7
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.