Unrated severityNVD Advisory· Published Feb 9, 2011· Updated Apr 29, 2026
CVE-2011-0040
CVE-2011-0040
Description
The server in Microsoft Active Directory on Windows Server 2003 SP2 does not properly handle an update request for a service principal name (SPN), which allows remote attackers to cause a denial of service (authentication downgrade or outage) via a crafted request that triggers name collisions, aka "Active Directory SPN Validation Vulnerability."
Affected products
3cpe:2.3:o:microsoft:windows_2003_server:*:sp2:*:*:*:*:*:*+ 2 more
- cpe:2.3:o:microsoft:windows_2003_server:*:sp2:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_2003_server:*:sp2:itanium:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_2003_server:*:sp2:x64:*:*:*:*:*
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
8- secunia.com/advisories/43215nvdVendor Advisory
- www.vupen.com/english/advisories/2011/0319nvdVendor Advisory
- osvdb.org/70825nvd
- www.securityfocus.com/bid/46145nvd
- www.securitytracker.com/idnvd
- docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-005nvd
- exchange.xforce.ibmcloud.com/vulnerabilities/64915nvd
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12485nvd
News mentions
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