Product:
Windows Ancillary Function Driver for WinSock
Summary
A time-of-check time-of-use race condition 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 this issue to protect their systems.
Details
| Severity | Base Score | CVE |
|---|---|---|
| HIGH | 7.8 | CVE-2026-20831 |
Exploitation
To exploit this vulnerability, an attacker must have local access to the system. By leveraging the race condition, the attacker can manipulate the timing of operations to gain elevated privileges. This can be done by executing specific sequences of commands that take advantage of the timing discrepancies in the driver.
Affected Products
- Windows Ancillary Function Driver for WinSock: Affected by a race condition that allows privilege escalation.
Mitigation
To mitigate this vulnerability, it is recommended to apply the latest security updates provided by Microsoft. Users should regularly check for updates and ensure their systems are patched to protect against potential exploitation of this issue.