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Fencer Vulns
medium 5.1

CVE-2006-6493 json

Buffer overflow in the krbv4_ldap_auth function in servers/slapd/kerberos.c in OpenLDAP 2.4.3 and earlier, when OpenLDAP is compiled with t…

published 2006-12-13 19 y ago modified 2026-06-16 4 mo ago also EUVD-2006-6476

cvss
5.1
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
9.3%
EPSS 9.3% chance of exploitation in 30 days, percentile 95%
public exploits
1
Exploit-DB

Summary

Buffer overflow in the krbv4_ldap_auth function in servers/slapd/kerberos.c in OpenLDAP 2.4.3 and earlier, when OpenLDAP is compiled with the --enable-kbind (Kerberos KBIND) option, allows remote attackers to execute arbitrary code via an LDAP bind request using the LDAP_AUTH_KRBV41 authentication method and long credential data.

Timeline

  1. Published
  2. First public exploit (EDB-2933)

Exploit prediction

9.33% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-2933 OpenLDAP 2.4.3 - 'KBIND' Remote Buffer Overflow remote, 2006-12-15
  • securityfocus.com http://www.securityfocus.com/archive/1/454181/30/0/threaded referenced PoC, tagged "exploit" by a source, unverified
  • phreedom.org http://www.phreedom.org/solar/exploits/openldap-kbind referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 5.1 AV:N/AC:H/Au:N/C:P/I:P/A:P

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.