CVE-2026-50432 Window Virtual Filtering Platform (VFP) Denial of Service Vulnerability

Medium 5.3 Published Updated

An authorized attacker can cause a denial of service in Windows Virtual Filtering Platform via a use-after-free vulnerability.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-50432?

CVE-2026-50432 is a medium-severity use after free vulnerability in Microsoft Windows 10 1607, published on 14 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Use after free in Windows Virtual Filtering Platform (VFP) allows an authorized attacker to deny service over a network.

Weakness: CWE-416

Which versions are affected by CVE-2026-50432?

It affects 11 products.

Products include Microsoft Windows 10 1607, Microsoft Windows 10 1809, Microsoft Windows 10 21h2, Microsoft Windows 10 22h2, Microsoft Windows 11 24h2, Microsoft Windows 11 25h2 and 5 more.

How do I fix CVE-2026-50432?

No fix has been published for CVE-2026-50432 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2026-50432 being exploited?

There is no known exploitation of CVE-2026-50432 in the wild and no public exploit code.

All Microsoft Windows 10 1607 vulnerabilities

Sources

Also known as GHSA-q9r6-xfw7-37mj.

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