SB2025070861 - Privilege escalation in Microsoft Windows Ancillary Function Driver for WinSock
Published: July 8, 2025
Security Bulletin ID
SB2025070861
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) Untrusted Pointer Dereference (CVE-ID: CVE-2025-49661)
The vulnerability allows a local user to compromise the target system.
The vulnerability exists due to untrusted pointer dereference in Windows Ancillary Function Driver for WinSock. A local user can gain elevated privileges on the target system.
Remediation
Install update from vendor's website.