CVE-2025-53141 Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability

High 7.8 Published Updated

An authorized local attacker can exploit a null pointer dereference in the Windows Ancillary Function Driver to elevate privileges.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-53141?

CVE-2025-53141 is a high-severity vulnerability in Microsoft Windows 10 1507, published on 12 Aug 2025. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Null pointer dereference in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

Weakness: CWE-476

Which versions are affected by CVE-2025-53141?

It affects 15 products.

Products include Microsoft Windows 10 1507, Microsoft Windows 10 1607, Microsoft Windows 10 1809, Microsoft Windows 10 21h2, Microsoft Windows 10 22h2, Microsoft Windows 11 22h2 and 9 more.

How do I fix CVE-2025-53141?

No fix has been published for CVE-2025-53141 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-53141 being exploited?

There is no known exploitation of CVE-2025-53141 in the wild and no public exploit code.

All Microsoft Windows 10 1507 vulnerabilities

Sources

Also known as GHSA-cc99-f964-7cfg.

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