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Vulnerability record · CVE-2010-0020 · published 10 February 2010

CVE-2010-0020: Microsoft windows 2000 improper input validation vulnerability

Microsoft · Windows 2000

The SMB implementation in the Server service in Microsoft Windows 2000 SP4, Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista Gold, SP1, and SP2, Windows Server 2008 Gold, SP2, and R2, and Windows 7 does not properly validate request fields, which allows remote authenticated users to execute arbitrary code via a malformed request, aka "SMB Pathname Overflow Vulnerability."

9.0 CVSS 2.0 High EPSS 33% · top 1.7% CWE-20 · Improper input validationCWE-94 · Code injection
9.0CVSS 2.0 base score
33%EPSS exploitation probability, 30 days
NoNot in CISA KEV
6Affected product versions listed by NVD
6References
16 Jun 2026Last modified by NVD

Description

The SMB implementation in the Server service in Microsoft Windows 2000 SP4, Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista Gold, SP1, and SP2, Windows Server 2008 Gold, SP2, and R2, and Windows 7 does not properly validate request fields, which allows remote authenticated users to execute arbitrary code via a malformed request, aka "SMB Pathname Overflow Vulnerability."

AV:N/AC:L/Au:S/C:C/I:C/A:C

Affected products

6 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.us-cert.gov/cas/techalerts/TA10-040A.html US Government Resource
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-012
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8438
http://www.us-cert.gov/cas/techalerts/TA10-040A.html US Government Resource
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-012
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8438

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2010-0020), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.