How severe is CVE-2007-2999?

CVE-2007-2999 has a CVSS 2.0 base score of 1.8, rated low severity.

Is CVE-2007-2999 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2007-2999?

CVE-2007-2999 primarily affects Microsoft Windows 2003 Server. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2007-2999?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2007-2999 published?

CVE-2007-2999 was published on 2007-06-04 and last updated on 2026-06-16.

CVE-2007-2999

CVE-2007-2999 is a low-severity vulnerability in Microsoft Windows 2003 Server with a CVSS 2.0 base score of 1.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Low (CVSS 2.0 base score 1.8)
EPSS exploit prediction: 2% (74th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Microsoft Windows 2003 Server
Published: 2007-06-04
Last modified: 2026-06-16

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.

Frequently asked questions

What is CVE-2007-2999?: 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.
How severe is CVE-2007-2999?: CVE-2007-2999 has a CVSS 2.0 base score of 1.8, rated low severity.
Is CVE-2007-2999 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-2999?: CVE-2007-2999 primarily affects Microsoft Windows 2003 Server. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2007-2999?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2007-2999 published?: CVE-2007-2999 was published on 2007-06-04 and last updated on 2026-06-16.

References

Affected products (3)

cpe:2.3:o:microsoft:windows_2003_server:gold:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_2003_server:sp1:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_2003_server:sp2:*:*:*:*:*:*:*

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