Advisory Published
Updated

CVE-2021-43244: Windows Kernel Information Disclosure Vulnerability

First published: Wed Dec 15 2021(Updated: )

Windows Kernel Information Disclosure Vulnerability

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

Affected SoftwareAffected VersionHow to fix
Microsoft Windows 10=20h2
Microsoft Windows 10=20h2
Microsoft Windows 10=20h2
Microsoft Windows 10=21h1
Microsoft Windows 10=21h1
Microsoft Windows 10=21h1
Microsoft Windows 10=21h2
Microsoft Windows 10=21h2
Microsoft Windows 10=21h2
Microsoft Windows 10=1809
Microsoft Windows 10=1809
Microsoft Windows 10=1809
Microsoft Windows 10=1909
Microsoft Windows 10=1909
Microsoft Windows 10=1909
Microsoft Windows 10=2004
Microsoft Windows 10=2004
Microsoft Windows 10=2004
Microsoft Windows Server=20h2
Microsoft Windows Server=2022
Microsoft Windows Server 2016=2004
Microsoft Windows Server 2019
=20h2
=20h2
=20h2
=21h1
=21h1
=21h1
=21h2
=21h2
=21h2
=1809
=1809
=1809
=1909
=1909
=1909
=2004
=2004
=2004
=20h2
=2022
=2004

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Frequently Asked Questions

  • What is the severity of CVE-2021-43244?

    The severity of CVE-2021-43244 is rated as moderate.

  • How do I fix CVE-2021-43244?

    To fix CVE-2021-43244, you should apply the latest security patches provided by Microsoft for your affected Windows version.

  • What impact does CVE-2021-43244 have on my system?

    CVE-2021-43244 may allow for information disclosure, potentially leading to unauthorized access to sensitive data from the Windows kernel.

  • Which Windows versions are affected by CVE-2021-43244?

    CVE-2021-43244 affects multiple versions of Windows 10 and Windows Server, specifically 1809, 1909, 2004, 20H2, 21H1, and 21H2.

  • Is CVE-2021-43244 being actively exploited?

    As of the latest updates, there is no public information indicating that CVE-2021-43244 is being actively exploited in the wild.

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