CVE-2005-0045

CVE-2005-0045 is a high-severity vulnerability in Microsoft Windows 2000 with a CVSS 2.0 base score of 7.5. Its EPSS exploit-prediction score of 73% places it in the 99th percentile, indicating an elevated likelihood of exploitation.

Key facts

• Severity: High (CVSS 2.0 base score 7.5)
• EPSS exploit prediction: 73% (99th percentile)
• Actively exploited: Not listed in CISA KEV
• Affected product: Microsoft Windows 2000
• Published: 2005-05-02
• Last modified: 2026-06-16

Description

The Server Message Block (SMB) implementation for Windows NT 4.0, 2000, XP, and Server 2003 does not properly validate certain SMB packets, which allows remote attackers to execute arbitrary code via Transaction responses containing (1) Trans or (2) Trans2 commands, aka the "Server Message Block Vulnerability," and as demonstrated using Trans2 FIND_FIRST2 responses with large file name length fields.

Frequently asked questions

What is CVE-2005-0045?

The Server Message Block (SMB) implementation for Windows NT 4.0, 2000, XP, and Server 2003 does not properly validate certain SMB packets, which allows remote attackers to execute arbitrary code via Transaction responses containing (1) Trans or (2) Trans2 commands, aka the "Server Message Block Vulnerability," and as demonstrated using Trans2 FIND_FIRST2 responses with large file name length fields.

How severe is CVE-2005-0045?

CVE-2005-0045 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2005-0045 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 73% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2005-0045?

CVE-2005-0045 primarily affects Microsoft Windows 2000. In total, 49 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2005-0045?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2005-0045 published?

CVE-2005-0045 was published on 2005-05-02 and last updated on 2026-06-16.

References

• http://marc.info/?l=bugtraq&m=110792638401852&w=2
• http://marc.info/?l=bugtraq&m=111040962600205&w=2
• http://marc.info/?l=ntbugtraq&m=110795643831169&w=2
• http://www.kb.cert.org/vuls/id/652537
• http://www.securityfocus.com/bid/12484
• http://www.us-cert.gov/cas/techalerts/TA05-039A.html
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2005/ms05-011
• https://exchange.xforce.ibmcloud.com/vulnerabilities/19089
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1606
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1847
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1889
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A4043

Affected products (49)

• 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:sp6a:enterprise_server:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_nt:4.0:sp6a:server:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_nt:4.0:sp6a:terminal_server:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_nt:4.0:sp6a:workstation:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_xp:*:*:64-bit:*:*:*:*:*

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