CRITICAL
CVE-2006-6143
CWE-824Published: December 31, 2006· Updated: Jun 16, 2026
9.3
CVSS v3.1
Official Description
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.
Technical Analysis
CVE-2006-6143 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityM
Privileges Req.
User Interaction
Scope
Impact
ConfidentialityC
IntegrityC
AvailabilityC
AV:N/AC:M/Au:N/C:C/I:C/A:C
Affected Vendors & Products
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (58)
→
http://fedoranews.org/cms/node/2375Broken Link
→
http://fedoranews.org/cms/node/2376Broken Link
→
http://osvdb.org/31281Broken Link
→
http://secunia.com/advisories/23667Broken Link
→
http://secunia.com/advisories/23696Broken Link
→
http://secunia.com/advisories/23701Broken Link
→
http://secunia.com/advisories/23706Broken Link
→
http://secunia.com/advisories/23707Broken Link
→
http://secunia.com/advisories/23772Broken Link
→
http://secunia.com/advisories/23903Broken Link
→
http://secunia.com/advisories/24966Broken Link
→
http://security.gentoo.org/glsa/glsa-200701-21.xmlThird Party Advisory
Quick Facts
CVE IDCVE-2006-6143
CVSS Score9.3 / 10
SeverityCRITICAL
WeaknessCWE-824
CISA KEVNo
Affected2 vendor(s)
PublishedDec 31, 2006
Related CVEs (CWE-824)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2006-6143 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.