CVE-2019-0709 Windows Hyper-V Remote Code Execution Vulnerability

High 7.6 Published 12 Jun 2019 Updated 20 May 2025

An attacker with guest access can execute arbitrary code on the Hyper-V host by sending specially crafted input.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2019-0709?

CVE-2019-0709 is a high-severity code injection vulnerability in Microsoft Windows 10, published on 12 Jun 2019. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

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. To exploit the vulnerability, an attacker could run a specially crafted application on a guest operating system that could cause the Hyper-V host operating system to execute arbitrary code. An attacker who successfully exploited the vulnerability could execute arbitrary code on the host operating system. The security update addresses the vulnerability by correcting how Hyper-V validates guest operating system user input.

Weakness: CWE-20

Which versions are affected by CVE-2019-0709?

It affects 2 products.

Products include Microsoft Windows 10, Microsoft Windows Server 2016.

How do I fix CVE-2019-0709?

No fix has been published for CVE-2019-0709 yet. Limit exposure of the affected software until one is available.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2019-0709 being exploited?

There is no known exploitation of CVE-2019-0709 in the wild and no public exploit code.

Public exploit code: 2 proofs of concept on GitHub.

All Microsoft Windows 10 vulnerabilities

Sources

Also known as GHSA-jw59-w7qw-w79g.