CVE-2017-11781: Microsoft Windows 10

High severity, CVSS 7.5. EPSS: 14.4% chance of exploitation in the next 30 days.

The Microsoft Server Block Message (SMB) on Microsoft Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, Windows 10 Gold, 1511, 1607, and 1703, and Windows Server 2016, allows a denial of service vulnerability when an attacker sends specially crafted requests to the server, aka "Windows SMB Denial of Service Vulnerability".

Affected products

• Microsoft Windows 10: affected versions not specified; version 1511 only; version 1607 only; version 1703 only
• Microsoft Windows 7: any version
• Microsoft Windows 8.1: any version
• Microsoft Windows Rt 8.1: any version
• Microsoft Windows Server 2008: any version; version r2 only
• Microsoft Windows Server 2012: affected versions not specified; version r2 only
• Microsoft Windows Server 2016: any version

Published 2017-10-13. Last modified 2026-06-17.