system
Describe <CVE-2019-1397>.
user
What is <CVE-2019-1397>?
assistant
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 CVE ID is unique from CVE-2019-1389, CVE-2019-1398..