CVE tracker / CVE-2025-29809

CVE-2025-29809

CVE-2025-29809 is the Windows Kerberos Security Feature Bypass Vulnerability. Microsoft rates it Important, CVSS 7.1. It is not in CISA's Known Exploited Vulnerabilities catalog. Published April 8, 2025.

Risk summary

HighSecurity Feature Bypass
7.1
CVSS v3 base
4.3%
EPSS: chance of exploitation in 30 days
High
Severity
Important
Microsoft's rating
More Likely
Microsoft: exploitation
No
In CISA KEV

Microsoft describes it: “Insecure storage of sensitive information in Windows Kerberos allows an authorized attacker to bypass a security feature locally.”

How to fix it

Microsoft lists 27 affected products and the update that fixes each:

What Microsoft changed

Details

Weakness
CWE-922: Insecure Storage of Sensitive Information
Publicly disclosed (Microsoft)
No
Exploited (Microsoft)
No
Known exploited (CISA KEV)
Not listed
Published
April 8, 2025
Last revised
April 9, 2025

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References

Microsoft Security Update Guide NVD CVE record CWE

From Microsoft, CISA, NVD and FIRST data; the Microsoft details were read when this page was opened. Check the references above before you act.