SB2025111177 - Privilege escalation in Microsoft Multimedia Class Scheduler Service (MMCSS) Driver
Published: November 11, 2025
Security Bulletin ID
SB2025111177
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2025-60707)
The vulnerability allows a local user to compromise vulnerable system.
The vulnerability exists due to a use-after-free error in Multimedia Class Scheduler Service (MMCSS) Driver. A local user can gain elevated privileges on the target system.
Remediation
Install update from vendor's website.