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Vulnerability record · CVE-2006-6493 · published 13 December 2006

CVE-2006-6493: Openldap vulnerability

Openldap · Openldap

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.

5.1 CVSS 2.0 Medium EPSS 9.3% · top 4.8%
5.1CVSS 2.0 base score
9.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
10References, 4 tagged exploit
16 Jun 2026Last modified by NVD

Description

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.

AV:N/AC:H/Au:N/C:P/I:P/A:P

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://secunia.com/advisories/23334
http://securityreason.com/securityalert/2023
http://www.phreedom.org/solar/exploits/openldap-kbind Exploit
http://www.securityfocus.com/archive/1/454181/30/0/threaded ExploitVendor Advisory
http://www.vupen.com/english/advisories/2006/4964
http://secunia.com/advisories/23334
http://securityreason.com/securityalert/2023
http://www.phreedom.org/solar/exploits/openldap-kbind Exploit
http://www.securityfocus.com/archive/1/454181/30/0/threaded ExploitVendor Advisory
http://www.vupen.com/english/advisories/2006/4964

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2006-6493), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.