CVE-2007-2999: Microsoft Windows 2003 Server

Low severity, CVSS 1.8. EPSS: 1.6% chance of exploitation in the next 30 days.

Microsoft Windows Server 2003, when time restrictions are in effect for user accounts, generates different error messages for failed login attempts with a valid user name than for those with an invalid user name, which allows context-dependent attackers to determine valid Active Directory account names.

Affected products

• Microsoft Windows 2003 Server: version gold only; version sp1 only; version sp2 only

Published 2007-06-04. Last modified 2026-06-16.