Vulnerability Database

289,697

Total vulnerabilities in the database

CVE-2011-0040

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."

  • Published: Feb 9, 2011
  • Updated: Apr 13, 2023
  • CVE: CVE-2011-0040
  • Severity: Medium
  • Exploit:

CVSS v2:

  • Severity: Medium
  • Score: 5
  • AV:N/AC:L/Au:N/C:N/I:N/A:P

CWEs: