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CVE-2025-29809 is an Important-severity security feature bypass vulnerability in Windows Kerberos. The provided content states that the issue is caused by insecure storage of sensitive information in Windows Kerberos and that it allows an authorized attacker to bypass a security feature locally. Supporting context also indicates the flaw is tied to Windows Kerberos security policy handling and specifically references administrative action to redeploy an updated policy related to blocking rollback of VBS security updates. Based on the available information, the vulnerability does not describe remote code execution; rather, it enables a local bypass of an intended Kerberos- or policy-enforced security control due to improperly protected sensitive information.
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No public exploit code observed for this vulnerability.
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5 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Windows Kerberos security feature bypass vulnerability requiring administrators to redeploy an updated policy related to blocking rollback of VBS-related security updates.
An insecure storage issue in Windows Kerberos that allows a local bypass of security features.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.