SB2025051372 - Privilege escalation in Microsoft DWM Core library



SB2025051372 - Privilege escalation in Microsoft DWM Core library

Published: May 13, 2025 Updated: May 30, 2025

Security Bulletin ID SB2025051372
Severity
High
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

High 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Use-after-free (CVE-ID: CVE-2025-30400)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error in Microsoft Desktop Window Manager. A local user can trigger a use-after-free error and execute arbitrary code with SYSTEM privileges.

Note, the vulnerability is being actively exploited in the wild.


Remediation

Install update from vendor's website.