What’s Vulnerable › Vulnerabilities

CVE-2010-0231

• Severity: critical (CVSS 10.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 41.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2010-02-10 · updated 2026-06-16
• Weakness: CWE-264

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 use a sufficient source of entropy, which allows remote attackers to obtain access to files and other SMB resources via a large number of authentication requests, related to server-generated challenges, certain "duplicate values," and spoofing of an authentication token, aka "SMB NTLM Authentication Lack of Entropy Vulnerability."

Affected products

• Microsoft Windows 2000: all versions
• Microsoft Windows 2003 Server: all versions
• Microsoft Windows 7: all versions
• Microsoft Windows Server 2008: all versions
• Microsoft Windows Vista: all versions
• Microsoft Windows XP Service Pack 3: all versions

References

• http://www.us-cert.gov/cas/techalerts/TA10-040A.html
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-012
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7751
• http://www.us-cert.gov/cas/techalerts/TA10-040A.html
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-012
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7751

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