A remote code execution vulnerability exists when Windows Hyper-V Network Switch 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 Windows Hyper-V Network Switch validates guest operating system network traffic.

Project Subscriptions

Vendors Products
Microsoft Subscribe
Windows 10 Subscribe
Windows 10 1507 Subscribe
Windows 10 1607 Subscribe
Windows 10 1803 Subscribe
Windows 10 1809 Subscribe
Windows 7 Subscribe
Windows 8.1 Subscribe
Windows Server 1803 Subscribe
Windows Server 2008 Subscribe
Windows Server 2008 R2 Subscribe
Windows Server 2008 Sp2 Subscribe
Windows Server 2012 Subscribe
Windows Server 2012 R2 Subscribe
Windows Server 2016 Subscribe
Windows Server 2019 Subscribe
Advisories
Source ID Title
EUVD EUVD EUVD-2019-1480 A remote code execution vulnerability exists when Windows Hyper-V Network Switch 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 Windows Hyper-V Network Switch validates guest operating system network traffic.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Fri, 20 Feb 2026 18:45:00 +0000

Type Values Removed Values Added
Description A remote code execution vulnerability exists when Windows Hyper-V Network Switch 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 Windows Hyper-V Network Switch validates guest operating system network traffic. A remote code execution vulnerability exists when Windows Hyper-V Network Switch 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 Windows Hyper-V Network Switch validates guest operating system network traffic.

Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2024-08-04T17:51:27.291Z

Reserved: 2018-11-26T00:00:00.000Z

Link: CVE-2019-0720

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2019-08-14T21:15:12.953

Modified: 2026-02-20T19:19:13.390

Link: CVE-2019-0720

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses