8.8
Advisory Published
CVE Published
Advisory Published
Updated

CVE-2021-26420: Microsoft SharePoint WorkflowCompilerInternal Exposed Dangerous Function Remote Code Execution Vulnerability

First published: Tue Jun 08 2021(Updated: )

Microsoft SharePoint Server Remote Code Execution Vulnerability

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

Affected SoftwareAffected VersionHow to fix
Microsoft SharePoint Enterprise Server=2016
Microsoft SharePoint Foundation=2013-sp1
Microsoft SharePoint Server=2019
Microsoft SharePoint
Microsoft SharePoint Server 2019
Microsoft SharePoint Enterprise Server 2016
Microsoft SharePoint Foundation 2013

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Frequently Asked Questions

  • What is CVE-2021-26420?

    CVE-2021-26420 is a vulnerability in Microsoft SharePoint that allows remote attackers to execute arbitrary code on affected installations.

  • What is the severity of CVE-2021-26420?

    The severity of CVE-2021-26420 is high, with a CVSS score of 7.5.

  • Which versions of Microsoft SharePoint are affected by CVE-2021-26420?

    CVE-2021-26420 affects Microsoft SharePoint Enterprise Server 2016, Microsoft SharePoint Foundation 2013 SP1, and Microsoft SharePoint Server 2019.

  • How can I fix CVE-2021-26420 in Microsoft SharePoint Enterprise Server 2016?

    To fix CVE-2021-26420 in Microsoft SharePoint Enterprise Server 2016, you can apply the patch provided by Microsoft or follow the remediation steps mentioned in the Microsoft knowledge base article.

  • Where can I find more information about CVE-2021-26420?

    You can find more information about CVE-2021-26420 on the Microsoft Security Response Center website and the Zero Day Initiative advisory.

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