Advisory Published
Updated

CVE-2021-43246: Windows Hyper-V Denial of Service Vulnerability

First published: Wed Dec 15 2021(Updated: )

Windows Hyper-V Denial of Service Vulnerability

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

Affected SoftwareAffected VersionHow to fix
Windows 10=20h2
Windows 10=21h1
Windows 10=21h2
Windows 10=1809
Windows 10=2004
Microsoft Windows Server=20h2
Microsoft Windows Server=2022
Microsoft Windows Server 2016=2004
Microsoft Windows Server 2019

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Frequently Asked Questions

  • What is the severity of CVE-2021-43246?

    CVE-2021-43246 is classified as a denial of service vulnerability.

  • How do I fix CVE-2021-43246?

    To mitigate CVE-2021-43246, apply the latest Microsoft security updates provided for affected versions of Windows.

  • Which versions of Windows are affected by CVE-2021-43246?

    CVE-2021-43246 affects multiple versions of Windows 10 and Windows Server, including versions 20h2, 21h1, 21h2, 1809, 2004, and 2022.

  • What type of attack leverages CVE-2021-43246?

    CVE-2021-43246 can be exploited by an attacker to create a denial of service condition on the system.

  • Is CVE-2021-43246 specific to virtual machines?

    CVE-2021-43246 specifically pertains to a vulnerability within Windows Hyper-V, which is Microsoft's virtualization technology.

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