CVE-2003-0661
CVE-2003-0661 is a medium-severity vulnerability in Microsoft Windows 2000 with a CVSS 2.0 base score of 5.0. Its EPSS exploit-prediction score of 22% places it in the 97th percentile, indicating an elevated likelihood of exploitation.
Key facts
- Severity: Medium (CVSS 2.0 base score 5.0)
- EPSS exploit prediction: 22% (97th percentile)
- Actively exploited: Not listed in CISA KEV
- Affected product: Microsoft Windows 2000
- Published:
- Last modified:
Description
The NetBT Name Service (NBNS) for NetBIOS in Windows NT 4.0, 2000, XP, and Server 2003 may include random memory in a response to a NBNS query, which could allow remote attackers to obtain sensitive information.
Frequently asked questions
- What is CVE-2003-0661?
- The NetBT Name Service (NBNS) for NetBIOS in Windows NT 4.0, 2000, XP, and Server 2003 may include random memory in a response to a NBNS query, which could allow remote attackers to obtain sensitive information.
- How severe is CVE-2003-0661?
- CVE-2003-0661 has a CVSS 2.0 base score of 5.0, rated medium severity.
- Is CVE-2003-0661 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 22% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2003-0661?
- CVE-2003-0661 primarily affects Microsoft Windows 2000. In total, 46 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2003-0661?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2003-0661 published?
- CVE-2003-0661 was published on 2003-10-20 and last updated on 2026-06-16.
References
- http://www.kb.cert.org/vuls/id/989932
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2003/ms03-034
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A3483
Affected products (46)
- cpe:2.3:o:microsoft:windows_2000:*:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_2000:*:sp1:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_2000:*:sp2:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_2000:*:sp3:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_2000:*:sp4:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_2003_server:enterprise:*:64-bit:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_2003_server:enterprise_64-bit:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_2003_server:r2:*:64-bit:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_2003_server:r2:*:datacenter_64-bit:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_2003_server:standard:*:64-bit:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_2003_server:web:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_nt:4.0:*:enterprise_server:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_nt:4.0:*:server:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_nt:4.0:*:terminal_server:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_nt:4.0:*:workstation:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_nt:4.0:sp1:enterprise_server:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_nt:4.0:sp1:server:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_nt:4.0:sp1:terminal_server:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_nt:4.0:sp1:workstation:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_nt:4.0:sp2:enterprise_server:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_nt:4.0:sp2:server:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_nt:4.0:sp2:terminal_server:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_nt:4.0:sp2:workstation:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_nt:4.0:sp3:enterprise_server:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_nt:4.0:sp3:server:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_nt:4.0:sp3:terminal_server:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_nt:4.0:sp3:workstation:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_nt:4.0:sp4:enterprise_server:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_nt:4.0:sp4:server:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_nt:4.0:sp4:terminal_server:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_nt:4.0:sp4:workstation:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_nt:4.0:sp5:enterprise_server:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_nt:4.0:sp5:server:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_nt:4.0:sp5:terminal_server:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_nt:4.0:sp5:workstation:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_nt:4.0:sp6:enterprise_server:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_nt:4.0:sp6:server:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_nt:4.0:sp6:terminal_server:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_nt:4.0:sp6:workstation:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_nt:4.0:sp6a:enterprise_server:*:*:*:*:*
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