CVE-2025-49686 Windows TCP/IP Driver Elevation of Privilege Vulnerability

High 7.8 Published Updated

An authorized local attacker can exploit a null pointer dereference in the Windows TCP/IP 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-2025-49686?

CVE-2025-49686 is a high-severity vulnerability in Microsoft Windows 10 1507, published on 8 Jul 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 TCP/IP allows an authorized attacker to elevate privileges locally.

Weakness: CWE-476

Which versions are affected by CVE-2025-49686?

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-2025-49686?

No fix has been published for CVE-2025-49686 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-49686 being exploited?

There is no known exploitation of CVE-2025-49686 in the wild and no public exploit code.

All Microsoft Windows 10 1507 vulnerabilities

Sources

Also known as GHSA-v8jh-86h6-pv7w.

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