HOMEVULNERABILITIESCVE-2006-6493
MEDIUMPOC

CVE-2006-6493

NVD-CWE-OtherPublished: December 13, 2006· Updated: Jun 16, 2026

5.1
CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2006-6493 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.

A proof-of-concept (PoC) exploit exists for CVE-2006-6493. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityHigh
Privileges Req.
User Interaction
Scope
Impact
ConfidentialityP
IntegrityP
AvailabilityP
AV:N/AC:H/Au:N/C:P/I:P/A:P

Affected Vendors & Products

openldap1 product(s)
openldap
Source: NVD CPE · 119 total CPE entries

Exploit & PoC Resources

POC AVAILABLEProof-of-concept code exists
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

ADVISORYhttp://www.securityfocus.com/archive/1/454181/30/0/threaded
ADVISORYhttp://www.securityfocus.com/archive/1/454181/30/0/threaded

All References (10)

→
http://secunia.com/advisories/23334
→
http://securityreason.com/securityalert/2023
→
http://www.phreedom.org/solar/exploits/openldap-kbindExploit
→
http://www.securityfocus.com/archive/1/454181/30/0/threadedExploit · Vendor 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-kbindExploit
→
http://www.securityfocus.com/archive/1/454181/30/0/threadedExploit · Vendor Advisory
→
http://www.vupen.com/english/advisories/2006/4964

Quick Facts

CVE IDCVE-2006-6493
CVSS Score5.1 / 10
SeverityMEDIUM
WeaknessNVD-CWE-Other
CISA KEVNo
ExploitPOC
Affected1 vendor(s)
PublishedDec 13, 2006

Related CVEs (NVD-CWE-Other)

CVE-2005-0771
10.0
CVE-1999-0489
10.0
CVE-2005-1897
10.0
CVE-2005-1208
10.0
CVE-2005-2023
10.0
CVE-1999-0775
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2006-6493 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.
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