Summary
Impact: Denial of Service. Microsoft rating: Important. Not known to be exploited — Exploitation More Likely. Customer action: Required.
Details
Security updates
10.0.20348.3932 — https://support.microsoft.com/help/5062572
10.0.26100.4652 — https://support.microsoft.com/help/5062553
10.0.25398.1732 — https://support.microsoft.com/help/5062570
Vulnerabilities 1
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Medium 6.5
Windows Kerberos Denial of Service Vulnerability
Out-of-bounds read in Windows Kerberos allows an authorized attacker to deny service over a network.
Revision history
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#1
Information published.
References
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CVE-2025-47978 Windows Kerberos Denial of Service Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-47978
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Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
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Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
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Common Vulnerability Scoring System
https://www.first.org/cvss