Is CVE-2012-2551 in the CISA KEV catalog?

No. CVE-2012-2551 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2012-2551?

CVE-2012-2551 has a CVSS v2 base score of 5.0 (MEDIUM).

What is the EPSS score for CVE-2012-2551?

CVE-2012-2551 has an EPSS score of 27.48% (98th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2012-2551

MEDIUMEPSS 98th pctl

5.0

CVSS v2

NVD

Description

The server in Kerberos in Microsoft Windows Server 2008 R2 and R2 SP1, and Windows 7 Gold and SP1, allows remote attackers to cause a denial of service (NULL pointer dereference and reboot) via a crafted session request, aka "Kerberos NULL Dereference Vulnerability."

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

27.48%probability of exploitation in 30 days

98thpercentile

Very high risk: more likely to be exploited than 98% of all known CVEs.

References

http://secunia.com/advisories/50867
http://www.securityfocus.com/bid/55778
http://www.securitytracker.com/id?1027620
http://www.us-cert.gov/cas/techalerts/TA12-283A.html
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-069
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15674

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-29.