Memory leak in the LDAP service in Active Directory on Microsoft Windows 2000 SP4 and Server 2003 SP2, and Active Directory Application Mode (ADAM) on Windows XP SP2 and SP3 and Server 2003 SP2, allows remote attackers to cause a denial of service (memory consumption and service outage) via (1) LDAP or (2) LDAPS requests with unspecified OID filters, aka "Active Directory Memory Leak Vulnerability."
CVE-2009-1139
NONECVSS 0.0Elevated
0.0
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- No confirmed exploitation signals yet
CISA-KEV: Not listedEPSS: 39%CVSS: —Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- —
- EG Score
- 0.0(none)
- EPSS
- 98.4%
- KEV
- Not listed
Published
June 10, 2009
Last Modified
April 23, 2026
References (18)
- secure@microsofthttp://osvdb.org/54938
- secure@microsofthttp://secunia.com/advisories/35355
- secure@microsofthttp://support.avaya.com/elmodocs2/security/ASA-2009-214.htm
- secure@microsofthttp://www.securityfocus.com/bid/35225
- secure@microsofthttp://www.securitytracker.com/id?1022349
- secure@microsofthttp://www.us-cert.gov/cas/techalerts/TA09-160A.html
- secure@microsofthttp://www.vupen.com/english/advisories/2009/1537
- secure@microsofthttps://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-018
- secure@microsofthttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6253
- af854a3a-2127-422b-91ae-364da2661108http://osvdb.org/54938
- af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/35355
- af854a3a-2127-422b-91ae-364da2661108http://support.avaya.com/elmodocs2/security/ASA-2009-214.htm
- af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/35225
- af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id?1022349
- af854a3a-2127-422b-91ae-364da2661108http://www.us-cert.gov/cas/techalerts/TA09-160A.html
Data Freshness Timeline
(refreshed 3× in last 7d / 33× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-05 02:26 UTCEPSS rescore
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- 2026-05-18 21:29 UTCEPSS rescore
Frequently asked(4)
What is CVE-2009-1139?
CVE-2009-1139 is a none vulnerability published on June 10, 2009. Memory leak in the LDAP service in Active Directory on Microsoft Windows 2000 SP4 and Server 2003 SP2, and Active Directory Application Mode (ADAM) on Windows XP SP2 and SP3 and Server 2003 SP2, allows remote attackers to cause a denial of service (memory consumption and service outage) via (1)…
When was CVE-2009-1139 disclosed?
CVE-2009-1139 was first published in the National Vulnerability Database on June 10, 2009, with the most recent update on April 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2009-1139 actively exploited?
CVE-2009-1139 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 98.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2009-1139?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2009-1139, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
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