CVE-2010-0270: Microsoft Windows 7

High severity, CVSS 10.0. EPSS: 48.2% chance of exploitation in the next 30 days.

The SMB client in Microsoft Windows Server 2008 R2 and Windows 7 does not properly validate fields in SMB transaction responses, which allows remote SMB servers and man-in-the-middle attackers to execute arbitrary code or cause a denial of service (memory corruption and reboot) via a crafted (1) SMBv1 or (2) SMBv2 response, aka "SMB Client Transaction Vulnerability."

Affected products

• Microsoft Windows 7: any version; affected versions not specified
• Microsoft Windows Server 2008: any version

Published 2010-04-14. Last modified 2026-06-16.