CVE-2013-6800

An unspecified third-party database module for the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.10.x allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted request, a different vulnerability than CVE-2013-1418.

Published: 2013-11-17 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2013-6800 is rated Moderate Risk (46.8/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.61%). EPSS rose +1.61% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2013-6800

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 1.00% 2.61% +1.61%
2 2026-06-03 0.77% 1.00% +0.23%
3 2025-11-09 — 0.77% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2013-6800

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.0 2.0 MEDIUM
AV:N/AC:L/Au:S/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.0 2.9 [email protected]

Weakness enumeration for CVE-2013-6800

OS Trackers for CVE-2013-6800

vendor priority summary link
gentoo normal CVE-2013-6800: 1 GLSA(s) (201312-12), 1 atom(s) (app-crypt/mit-krb5); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2013-6800
redhat medium — https://access.redhat.com/security/cve/CVE-2013-6800
ubuntu low CVE-2013-6800 low priority: Ubuntu including 1 source packages (krb5), 7 status rows across 7 suites (lucid, precise, quantal, raring, saucy, trusty, upstream): ignored 3, released 2, needs-triage 1, not-affected 1. https://ubuntu.com/security/CVE-2013-6800

NVD evaluator notes for CVE-2013-6800

Comment: CWE-476: NULL Pointer Dereference per http://cwe.mitre.org/data/definitions/476.html

Affected software / configurations for CVE-2013-6800

Vendor Product Version Raw CPE
mit kerberos 5-1.10.5 cpe:2.3:a:mit:kerberos:5-1.10.5:*:*:*:*:*:*:*
mit kerberos 5-1.10.6 cpe:2.3:a:mit:kerberos:5-1.10.6:*:*:*:*:*:*:*
mit kerberos 5-1.10.7 cpe:2.3:a:mit:kerberos:5-1.10.7:*:*:*:*:*:*:*
mit kerberos_5 1.10 cpe:2.3:a:mit:kerberos_5:1.10:*:*:*:*:*:*:*
mit kerberos_5 1.10.1 cpe:2.3:a:mit:kerberos_5:1.10.1:*:*:*:*:*:*:*
mit kerberos_5 1.10.2 cpe:2.3:a:mit:kerberos_5:1.10.2:*:*:*:*:*:*:*
mit kerberos_5 1.10.3 cpe:2.3:a:mit:kerberos_5:1.10.3:*:*:*:*:*:*:*
mit kerberos_5 1.10.4 cpe:2.3:a:mit:kerberos_5:1.10.4:*:*:*:*:*:*:*

References for CVE-2013-6800

cvelogic Threat Intelligence