Product:
Windows Ancillary Function Driver for WinSock
Summary
A stack-based buffer overflow vulnerability exists in the Windows Ancillary Function Driver for WinSock. This flaw allows an authorized attacker to elevate privileges locally. Successful exploitation can lead to significant impacts on system integrity and confidentiality.
Details
| Severity | Base Score | CVE |
|---|---|---|
| HIGH | 7 | CVE-2025-54099 |
Exploitation
To exploit this vulnerability, an attacker must have local access to the system and be able to execute code with low privileges. By carefully crafting input that triggers the buffer overflow, the attacker can manipulate the execution flow to gain elevated privileges, potentially allowing them to execute arbitrary code with higher permissions.
Affected Products
- Windows Ancillary Function Driver for WinSock: Vulnerable to stack-based buffer overflow, allowing local privilege escalation.
Mitigation
To mitigate this vulnerability, it is recommended to apply the latest security updates provided by Microsoft. Additionally, restricting local access to systems and monitoring for unusual activity can help reduce the risk of exploitation.