8.8
CWE
416
Advisory Published
Advisory Published
Updated

CVE-2021-26900: Microsoft Windows CInteractionTrackerMarshaler Use-After-Free Privilege Escalation Vulnerability

First published: Thu Mar 11 2021(Updated: )

Windows Win32k Elevation of Privilege Vulnerability

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

Affected SoftwareAffected VersionHow to fix
=20h2
=1909
=2004
=20h2
=1909
Microsoft Windows 10=20h2
Microsoft Windows 10=1909
Microsoft Windows 10=2004
Microsoft Windows Server 2016=20h2
Microsoft Windows Server 2016=1909

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Frequently Asked Questions

  • What is the severity of CVE-2021-26900?

    CVE-2021-26900 has a severity rating of 'Important' as it allows local attackers to escalate privileges.

  • How do I fix CVE-2021-26900?

    To mitigate CVE-2021-26900, apply the latest security updates provided by Microsoft for the affected versions of Windows.

  • Which Windows versions are affected by CVE-2021-26900?

    CVE-2021-26900 affects Windows 10 versions 20H2, 1909, 2004, and Windows Server 2016 versions 20H2 and 1909.

  • Can CVE-2021-26900 be exploited remotely?

    No, CVE-2021-26900 requires local access to the computer to exploit the vulnerability.

  • What type of vulnerability is CVE-2021-26900?

    CVE-2021-26900 is classified as an Elevation of Privilege vulnerability.

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