CVE-2019-0550: Microsoft Windows 10

High severity, CVSS 8.4. EPSS: 4.5% chance of exploitation in the next 30 days.

A remote code execution vulnerability exists when Windows Hyper-V on a host server fails to properly validate input from an authenticated user on a guest operating system, aka "Windows Hyper-V Remote Code Execution Vulnerability." This affects Windows 10 Servers, Windows 10, Windows Server 2019. This CVE ID is unique from CVE-2019-0551.

Affected products

• Microsoft Windows 10: version 1803 only; version 1809 only
• Microsoft Windows Server 2016: version 1803 only
• Microsoft Windows Server 2019: affected versions not specified

Published 2019-01-08. Last modified 2026-06-17.