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CVE-2007-2999
Microsoft Windows Server 2003, when time restrictions are in effect for user accounts, generates different error messages for failed login…
Low1.8EPSS 1.6%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
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.
Timeline
ID reserved
By mitre
Published
- 17 years later
· 17 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Low1.8 | AV:A/AC:H/Au:N/C:P/I:N/A:N |
- EPSS (exploitation in 30 days)
- 1.6% · top 23% of all CVEs (8 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 1.8.
Weakness
- n/a
Affected products
n/a
- affected n/a
References (4)
- http://www.notsosecure.com/folder2/2007/05/27/logon-time-restrictions-in-a-domain-in-windows-server-2003-allows-username-enumeration/ (opens in a new tab)x_refsource_MISCx_transferred
- 25457 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 24248 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 36138 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2007-2999)Record last updated .