critical
9.9
Advisory Published
Updated

CVE-2021-28476: Windows Hyper-V Remote Code Execution Vulnerability

First published: Tue May 11 2021(Updated: )

Windows Hyper-V Remote Code Execution Vulnerability

Credit: secure@microsoft.com secure@microsoft.com

Affected SoftwareAffected VersionHow to fix
Microsoft Windows 10
Microsoft Windows 10=20h2
Microsoft Windows 10=1607
Microsoft Windows 10=1803
Microsoft Windows 10=1809
Microsoft Windows 10=1909
Microsoft Windows 10=2004
Microsoft Windows 7=sp1
Microsoft Windows 8.1
Microsoft Windows Server 2008 Itanium=sp2
Microsoft Windows Server 2008 Itanium=r2-sp1
Microsoft Windows Server 2012 x64
Microsoft Windows Server 2012 x64=r2
Microsoft Windows Server 2016
Microsoft Windows Server 2016=20h2
Microsoft Windows Server 2016=1909
Microsoft Windows Server 2016=2004
Microsoft Windows Server 2019

Remedy

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-28476

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Reference Links

Frequently Asked Questions

  • What is CVE-2021-28476?

    CVE-2021-28476 is a Windows Hyper-V Remote Code Execution Vulnerability.

  • What software is affected by CVE-2021-28476?

    Microsoft Windows 10, Windows 7, Windows 8.1, Windows Server 2008, Windows Server 2012, Windows Server 2016, and Windows Server 2019 are affected by CVE-2021-28476.

  • How severe is CVE-2021-28476?

    CVE-2021-28476 has a severity rating of 9.9 (critical).

  • What is the proof of concept for CVE-2021-28476?

    A proof of concept for CVE-2021-28476 can be found at http://packetstormsecurity.com/files/163497/Microsoft-Hyper-V-vmswitch.sys-Proof-Of-Concept.html.

  • Where can I find more information about CVE-2021-28476?

    More information about CVE-2021-28476 can be found at https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-28476.

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