Unrated severityNVD Advisory· Published Jun 10, 2009· Updated Jun 16, 2026
CVE-2009-1138
CVE-2009-1138
Description
The LDAP service in Active Directory on Microsoft Windows 2000 SP4 does not properly free memory for LDAP and LDAPS requests, which allows remote attackers to execute arbitrary code via a request that uses hexadecimal encoding, whose associated memory is not released, related to a "DN AttributeValue," aka "Active Directory Invalid Free Vulnerability." NOTE: this issue is probably a memory leak.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2- cpe:2.3:o:microsoft:windows_2000:*:sp4:*:*:*:*:*:*
- Range: = Windows 2000 SP4
Patches
Vulnerability mechanics
References
10- www.securityfocus.com/bid/35226nvdPatch
- www.vupen.com/english/advisories/2009/1537nvdPatchVendor Advisory
- secunia.com/advisories/35355nvdVendor Advisory
- www.us-cert.gov/cas/techalerts/TA09-160A.htmlnvdUS Government Resource
- labs.idefense.com/intelligence/vulnerabilities/display.phpnvd
- osvdb.org/54937nvd
- support.avaya.com/elmodocs2/security/ASA-2009-214.htmnvd
- www.securitytracker.com/idnvd
- docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-018nvd
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6180nvd
News mentions
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