Microsoft Windows PrintWorkflowUserSvc Privilege Escalation Vulnerability

Vulnerability

A use-after-free vulnerability has been identified in the Windows PrintWorkflowUserSvc component. This vulnerability allows an authorized attacker to locally elevate privileges. The issue 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 KB5066835 to address this vulnerability. This security update is available through the Microsoft Update Catalog.

Added: Oct 14, 2025, 7:48 PM
Updated: Oct 14, 2025, 7:48 PM

Vulnerability Rating

Custom Algorithm
spread
8.4
impact
7.5
exploitability
2.9
remediation
7.7
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.