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 Server 2019 | ||
| Microsoft SharePoint Foundation 2013 | ||
| Microsoft SharePoint Enterprise Server 2016 | ||
| Microsoft SharePoint Enterprise Server | =2016 | |
| Microsoft SharePoint Foundation | =2013-sp1 | |
| Microsoft SharePoint Server | =2019 |
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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.
- collector/msrc-cve
- collector/zdi-advisory
- alias/ZDI-21-755
- alias/ZDI-CAN-13349
- alias/CVE-2021-26420
- collector/nvd-index
- collector/mitre-cve
- agent/references
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- agent/software-canonical-lookup-request
- vendor/microsoft
- canonical/microsoft sharepoint server 2019
- canonical/microsoft sharepoint foundation 2013
- canonical/microsoft sharepoint enterprise server 2016
- canonical/microsoft sharepoint
- canonical/microsoft sharepoint enterprise server
- version/microsoft sharepoint enterprise server/2016
- canonical/microsoft sharepoint foundation
- version/microsoft sharepoint foundation/2013-sp1
- canonical/microsoft sharepoint server
- version/microsoft sharepoint server/2019