Is CVE-2006-6143 being actively exploited?

CVE-2006-6143 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2006-6143?

CVE-2006-6143 has a CVSS 2.0 base score of 9.3 (HIGH).

CVE-2006-6143

HIGH · CVSS 9.3EPSS 8.1%EU EUVD

The RPC library in Kerberos 5 1.4 through 1.4.4, and 1.5 through 1.5.1, as used in Kerberos administration daemon (kadmind) and other products that use this library, calls an uninitialized function pointer in freed memory, which allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unspecified vectors.

Key facts

CVSS score: 9.3 (v2.0)
Severity: HIGH
CVSS vector: AV:N/AC:M/Au:N/C:C/I:C/A:C
Weakness (CWE): CWE-824
EPSS score: 8.1% (95th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2006-6126)
Published: December 31, 2006
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2006-6126 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

canonical / ubuntu linux
canonical / ubuntu linux
mit / kerberos 5
mit / kerberos 5
mit / kerberos 5
mit / kerberos 5
mit / kerberos 5
mit / kerberos 5
mit / kerberos 5

References

http://docs.info.apple.com/article.html?artnum=305391(Broken Link)
http://fedoranews.org/cms/node/2375(Broken Link)
http://fedoranews.org/cms/node/2376(Broken Link)
http://lists.apple.com/archives/Security-announce/2007/Apr/msg00001.html(Mailing List)
http://lists.suse.com/archive/suse-security-announce/2007-Jan/0004.html(Broken Link)
http://osvdb.org/31281(Broken Link)
http://secunia.com/advisories/23667(Broken Link)
http://secunia.com/advisories/23696(Broken Link)
http://secunia.com/advisories/23701(Broken Link)
http://secunia.com/advisories/23706(Broken Link)
http://secunia.com/advisories/23707(Broken Link)
http://secunia.com/advisories/23772(Broken Link)
http://secunia.com/advisories/23903(Broken Link)
http://secunia.com/advisories/24966(Broken Link)
http://security.gentoo.org/glsa/glsa-200701-21.xml(Third Party Advisory)
http://securitytracker.com/id?1017493(Broken Link, Third Party Advisory, VDB Entry)
http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2006-002-rpc.txt(Patch, Vendor Advisory)
http://www.kb.cert.org/vuls/id/481564(Patch, Third Party Advisory, US Government Resource)
http://www.mandriva.com/security/advisories?name=MDKSA-2007:008(Third Party Advisory)
http://www.openpkg.com/security/advisories/OpenPKG-SA-2007.006.html(Broken Link)
http://www.securityfocus.com/archive/1/456406/100/0/threaded(Broken Link, Third Party Advisory, VDB Entry)
http://www.securityfocus.com/bid/21970(Broken Link, Third Party Advisory, VDB Entry)
http://www.ubuntu.com/usn/usn-408-1(Third Party Advisory)
http://www.us-cert.gov/cas/techalerts/TA07-009B.html(Broken Link, Patch, Third Party Advisory, US Government Resource)
http://www.us-cert.gov/cas/techalerts/TA07-109A.html(Broken Link, Third Party Advisory, US Government Resource)
http://www.vupen.com/english/advisories/2007/0111(Broken Link)
http://www.vupen.com/english/advisories/2007/1470(Broken Link)
https://exchange.xforce.ibmcloud.com/vulnerabilities/31422(Third Party Advisory, VDB Entry)
https://issues.rpath.com/browse/RPL-925(Broken Link)

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

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