Is CVE-2012-1016 being actively exploited?

CVE-2012-1016 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2012-1016?

CVE-2012-1016 has a CVSS 2.0 base score of 5.0 (MEDIUM).

CVE-2012-1016

MEDIUM · CVSS 5.0EPSS 2.6%EU EUVD

The pkinit_server_return_padata function in plugins/preauth/pkinit/pkinit_srv.c in the PKINIT implementation in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.10.4 attempts to find an agility KDF identifier in inappropriate circumstances, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted Draft 9 request.

Key facts

CVSS score: 5.0 (v2.0)
Severity: MEDIUM
CVSS vector: AV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness (CWE): CWE-476
EPSS score: 2.6% (85th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2012-1054)
Published: March 5, 2013
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2012-1054 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

mit / kerberos 5

References

http://krbdev.mit.edu/rt/Ticket/Display.html?id=7527(Vendor Advisory)
http://secunia.com/advisories/55040(Third Party Advisory)
http://web.mit.edu/kerberos/www/krb5-1.10/(Release Notes, Vendor Advisory)
https://github.com/krb5/krb5/commit/db64ca25d661a47b996b4e2645998b5d7f0eb52c(Patch, Third Party Advisory)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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