Product:
Windows Ancillary Function Driver for WinSock
Summary
Improper access control 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. Attackers with local access can gain higher privileges than intended, potentially compromising the system.
Details
| Severity | Base Score | CVE |
|---|---|---|
| HIGH | 7.8 | CVE-2026-21238 |
Exploitation
To exploit this vulnerability, an attacker must have local access to the system. By leveraging the improper access control, the attacker can execute malicious actions that elevate their privileges. This can allow them to perform unauthorized operations, access sensitive data, or alter system configurations.
Affected Products
- Windows Ancillary Function Driver for WinSock: Vulnerable to privilege escalation due to improper access control.
Mitigation
To mitigate this vulnerability, it is recommended to apply the latest security updates provided by Microsoft. Regularly updating systems and monitoring for unauthorized access can help reduce the risk of exploitation. Additionally, implementing strict access controls can further protect against potential attacks.