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 Software | Affected Version | How 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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Reference Links
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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