CVE-2020-16891: Windows Hyper-V Remote Code Execution Vulnerability

Published Oct 16, 2020
·
Updated

<p>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.</p> <p>An attacker who successfully exploited the vulnerability could execute arbitrary code on the host operating system.</p> <p>The security update addresses the vulnerability by correcting how Hyper-V validates guest operating system user input.</p>

Other sources

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'.

Affected Software

19 affected components
Microsoft Windows 10
Microsoft Windows 10=1607
Microsoft Windows 10=1709
Microsoft Windows 10=1803
Microsoft Windows 10=1809
Microsoft Windows 10=1903
Microsoft Windows 10=1909
Microsoft Windows 10=2004
Microsoft Windows 7
Microsoft Windows 8.1
Microsoft Windows Server 2008=sp2
Microsoft Windows Server 2008=r2-sp1
Microsoft Windows Server 2012
Microsoft Windows Server 2012=r2
Microsoft Windows Server 2016
Microsoft Windows Server 2016=1903
Microsoft Windows Server 2016=1909
Microsoft Windows Server 2016=2004
Microsoft Windows Server 2019

Event History

Oct 16, 2020
CVE Published
10:17 PM
Data Sourced
10:17 PM
DescriptionSeverity
Data Sourced
via NVD·11:15 PM
RemedyDescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

1

What is the severity of CVE-2020-16891?

CVE-2020-16891 has a severity rating of critical due to its potential for remote code execution.

2

How do I fix CVE-2020-16891?

To mitigate CVE-2020-16891, apply the latest security updates provided by Microsoft for affected Windows versions.

3

Which versions of Windows are affected by CVE-2020-16891?

CVE-2020-16891 affects various versions of Microsoft Windows, including Windows 10, Windows Server 2008, 2012, 2016, and 2019.

4

What kind of attack can exploit CVE-2020-16891?

An attacker can exploit CVE-2020-16891 by running a specially crafted application on a guest operating system to execute arbitrary code.

5

Is CVE-2020-16891 a network vulnerability?

Yes, CVE-2020-16891 is a remote code execution vulnerability that can be exploited over the network.

Contact

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