CVE-2010-0477

no score yetEPSS 50%

The SMB client in Microsoft Windows Server 2008 R2 and Windows 7 does not properly handle (1) SMBv1 and (2) SMBv2 response packets, which allows remote SMB servers and man-in-the-middle attackers to execute arbitrary code via a crafted packet that causes the client to read the entirety of the response, and then improperly interact with the Winsock Kernel (WSK), aka "SMB Client Message Size Vulnerability."

EPSS: 50% chance of exploitation in the next 30 days; higher than 98% of CVEs (scores of 2026-10-31)
CWE: CWE-399
Published: 2010-04-14
Modified: 2026-06-16
Record from: the NVD, synced 2026-10-19

Affected

microsoft:windows_7
microsoft:windows_server_2008

References

http://secunia.com/advisories/39372
http://www.us-cert.gov/cas/techalerts/TA10-103A.html
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-020
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6859
http://secunia.com/advisories/39372

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