8.8
CWE
269
Advisory Published
Updated

CVE-2021-42291: Active Directory Domain Services Elevation of Privilege Vulnerability

First published: Wed Nov 10 2021(Updated: )

Active Directory Domain Services Elevation of Privilege Vulnerability

Credit: secure@microsoft.com

Affected SoftwareAffected VersionHow to fix
Microsoft Windows Server=20h2
Microsoft Windows Server=2012-r2
Microsoft Windows Server=sp2
Microsoft Windows Server=sp2
Microsoft Windows Server=r2-sp1
Microsoft Windows Server
Microsoft Windows Server 2016
Microsoft Windows Server 2016=2004
Microsoft Windows Server 2019
Microsoft Windows Server 2022

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Frequently Asked Questions

  • What is the severity of CVE-2021-42291?

    CVE-2021-42291 is classified as an Elevation of Privilege vulnerability, allowing attackers with network access to elevate their privileges.

  • How do I fix CVE-2021-42291?

    To address CVE-2021-42291, Microsoft recommends applying the latest security updates for affected Windows Server versions.

  • Which software is affected by CVE-2021-42291?

    CVE-2021-42291 affects multiple versions of Microsoft Windows Server, including 2022, 2019, 2016, 2012 R2, and 2008 SP2.

  • What are the potential consequences of ignoring CVE-2021-42291?

    Ignoring CVE-2021-42291 can lead to unauthorized access and compromise of sensitive data within the Active Directory domain.

  • How can I determine if my system is vulnerable to CVE-2021-42291?

    You can determine if your system is vulnerable to CVE-2021-42291 by checking if it is one of the affected Windows Server versions and whether the latest updates have been applied.

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