CVE-2007-2999
Microsoft Windows Server 2003, when time restrictions are in effect for user accounts, generates...
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2007-2999- CVSS 2.0
- 1.8 Low
AV:A/AC:H/Au:N/C:P/I:N/A:N - Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2007-2999- Updated
- 2026-11-02
EUVDEUVD-2007-2991 No score
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.
- Record
EUVD-2007-2991- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-cfwh-jh9q-xhc3 No score
Microsoft Windows Server 2003, when time restrictions are in effect for user accounts, generates...
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.
- Record
GHSA-cfwh-jh9q-xhc3- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| aliases, references, title | GitHub Advisories | |
| first indexed | CVE List, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2007-2999 is a low vulnerability (CVSS 1.8) in Microsoft Windows 2003 Server, published June 4, 2007. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.64%, the 76th percentile. No source names a fixed version.