Summary
Impact: Denial of Service. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.
Details
According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability?
Successful exploitation of this vulnerability requires an attacker to win a race condition.
Security updates
10.0.17763.6893 — https://support.microsoft.com/help/5052000
10.0.20348.3207 — https://support.microsoft.com/help/5051979
10.0.20348.3148 — https://support.microsoft.com/help/5052106
10.0.19044.5487 — https://support.microsoft.com/help/5051974
10.0.22621.4890 — https://support.microsoft.com/help/5051989
10.0.26100.3194 — https://support.microsoft.com/help/5051987
10.0.26100.3107 — https://support.microsoft.com/help/5052105
10.0.25398.1425 — https://support.microsoft.com/help/5051980
10.0.10240.20915 — https://support.microsoft.com/help/5052040
10.0.14393.7785 — https://support.microsoft.com/help/5052006
6.0.6003.23117 — https://support.microsoft.com/help/5052038
6.0.6003.23117 — https://support.microsoft.com/help/5052072
6.1.7601.27566 — https://support.microsoft.com/help/5052016
6.1.7601.27566 — https://support.microsoft.com/help/5052032
6.2.9200.25317 — https://support.microsoft.com/help/5052020
6.3.9600.22417 — https://support.microsoft.com/help/5052042
Vulnerabilities 1
-
Medium 5.9
Windows Kerberos Denial of Service Vulnerability
Windows Kerberos Denial of Service Vulnerability
Revision history
-
#1
Information published.
References
-
CVE-2025-21350 Windows Kerberos Denial of Service Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21350
-
Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
-
Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
-
Common Vulnerability Scoring System
https://www.first.org/cvss