HIGH Microsoft Corporation Vulnerability Alert

Product:

Windows Ancillary Function Driver for WinSock

Summary

A race condition in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally. This occurs due to concurrent execution using a shared resource with improper synchronization. The vulnerability can lead to significant impacts on confidentiality, integrity, and availability.

Details

Severity Base Score CVE
HIGH 7 CVE-2025-62217

Exploitation

To exploit this vulnerability, an attacker with local access can execute a specially crafted application that triggers the race condition. By doing so, the attacker can gain elevated privileges on the affected system, potentially allowing them to execute arbitrary code or access sensitive information.

Affected Products

  • Windows Ancillary Function Driver for WinSock: Vulnerable to privilege escalation due to improper synchronization in concurrent execution.

Mitigation

To mitigate this vulnerability, users should apply the latest security updates provided by Microsoft. It is also recommended to limit local access to systems and monitor for any unauthorized access attempts.

References