Product:
Windows Ancillary Function Driver for WinSock
Summary
Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally. This vulnerability can lead to significant security risks if exploited. It is crucial for users to be aware of the potential impacts of this issue.
Details
| Severity | Base Score | CVE |
|---|---|---|
| HIGH | 7 | CVE-2026-21241 |
Exploitation
To exploit this vulnerability, an attacker must have local access to the affected system. By leveraging the use after free condition, the attacker can execute arbitrary code with elevated privileges. This requires a high level of technical skill and knowledge of the system’s architecture.
Affected Products
- Windows Ancillary Function Driver for WinSock: Vulnerable to local privilege escalation due to use after free condition.
Mitigation
To mitigate this vulnerability, users should apply the latest security updates provided by Microsoft. Regularly updating systems and monitoring for unusual activity can help reduce the risk of exploitation. It is also recommended to limit local access to sensitive systems.