CVE-2025-29809 Windows Kerberos Security Feature Bypass Vulnerability

High 7.1 Published Updated

An authorized local attacker can bypass a security feature in Windows Kerberos due to insecure storage of sensitive information.

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-2025-29809?

CVE-2025-29809 is a high-severity vulnerability in Microsoft Windows 10 1507, published on 8 Apr 2025. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Insecure storage of sensitive information in Windows Kerberos allows an authorized attacker to bypass a security feature locally.

Weakness: CWE-922

Which versions are affected by CVE-2025-29809?

It affects 13 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 7 more.

How do I fix CVE-2025-29809?

No fix has been published for CVE-2025-29809 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-29809 being exploited?

There is no known exploitation of CVE-2025-29809 in the wild and no public exploit code.

All Microsoft Windows 10 1507 vulnerabilities

Sources

Also known as GHSA-4f8x-f25f-pp6r.

Is CVE-2025-29809 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free