7.8
CWE
416
Advisory Published
Updated

CVE-2023-21747: Windows Kernel Elevation of Privilege Vulnerability

First published: Tue Jan 10 2023(Updated: )

Windows Kernel Elevation of Privilege Vulnerability

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

Affected SoftwareAffected VersionHow to fix
Microsoft Windows Server 2008 R2
Microsoft Windows Server 2012 R2
Microsoft Windows Server 2008 R2
Microsoft Windows 7
Microsoft Windows 7
Microsoft Windows Server 2012 R2
Microsoft Windows RT
Microsoft Windows Server
Microsoft Windows Server
Microsoft Windows Server
Microsoft Windows Server
Microsoft Windows Server
Microsoft Windows Server
Microsoft Windows 8.1
Microsoft Windows 8.1
Microsoft Windows Server 2019
Microsoft Windows Server 2019
Windows 11=22H2
Windows 11=22H2
Windows 11=21H2
Windows 11=21H2
Microsoft Windows Server 2022
Microsoft Windows Server 2022
Microsoft Windows Server 2016
Microsoft Windows Server 2016
Microsoft Windows 10
Microsoft Windows 10
Microsoft Windows 10
Microsoft Windows 10
Microsoft Windows 10
Microsoft Windows 10
Microsoft Windows 10
Microsoft Windows 10
Microsoft Windows 10
Microsoft Windows 10
Microsoft Windows 10
Microsoft Windows 10
Microsoft Windows 10
Microsoft Windows 10
Windows 11
Windows 11
Windows 11
Windows 11
Microsoft Windows 7=sp1
Microsoft Windows 7=sp1
Microsoft Windows
Microsoft Windows
Microsoft Windows RT
Microsoft Windows Server=sp2
Microsoft Windows Server=sp2
Microsoft Windows Server=r2-sp1
Microsoft Windows Server
Microsoft Windows Server=r2
Microsoft Windows Server 2016
Microsoft Windows Server 2019
Microsoft Windows Server 2022
Windows 10=20H2
Windows 10=20H2
Windows 10=20H2
Windows 10=1809
Windows 10=1809
Windows 10=1809
Windows 10=22H2
Windows 10=22H2
Windows 10=22H2
Windows 10=1607
Windows 10=1607
Windows 10=21H2
Windows 10=21H2
Windows 10=21H2
Windows 10
Windows 10

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Frequently Asked Questions

  • What is the severity of CVE-2023-21747?

    CVE-2023-21747 has been classified as a high severity vulnerability due to its nature as an elevation of privilege in the Windows kernel.

  • How do I fix CVE-2023-21747?

    To fix CVE-2023-21747, apply the latest security patches available for your specific version of Windows as recommended by Microsoft.

  • What are the affected versions for CVE-2023-21747?

    CVE-2023-21747 affects multiple versions including Windows 10, Windows 11, Windows Server 2016, and Windows Server 2019.

  • Can CVE-2023-21747 be exploited remotely?

    CVE-2023-21747 requires local access for exploitation, making it less likely for remote attacks.

  • What are the potential impacts of CVE-2023-21747?

    Exploitation of CVE-2023-21747 could allow an attacker to gain elevated privileges, potentially enabling full control over the affected system.

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