CVE-2017-0169: Microsoft Windows 8.1

Medium severity, CVSS 5.4. EPSS: 1.6% chance of exploitation in the next 30 days.

An information disclosure vulnerability exists when Windows Hyper-V running on a Windows 8.1, Windows Server 2012. or Windows Server 2012 R2 host operating system fails to properly validate input from an authenticated user on a guest operating system, aka "Hyper-V Information Disclosure Vulnerability." This CVE ID is unique from CVE-2017-0168.

Affected products

• Microsoft Windows 8.1: any version
• Microsoft Windows Server 2012: any version; version r2 only

Published 2017-04-12. Last modified 2026-06-17.