CVE-2021-42309: Microsoft SharePoint Server-Side Control Improper Input Validation Remote Code Execution Vulnerability
First published: Tue Dec 14 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 | ||
| Microsoft SharePoint Server | =2019 | |
| Microsoft SharePoint | ||
| Microsoft SharePoint Server 2019 | ||
| Microsoft SharePoint Server Subscription Edition | ||
| Microsoft SharePoint Foundation 2013 | ||
| Microsoft SharePoint Enterprise Server 2016 | ||
| =2016 | ||
| =2013-sp1 | ||
| =2019 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2021-42309?
The severity of CVE-2021-42309 is high.
How does CVE-2021-42309 affect Microsoft SharePoint?
CVE-2021-42309 allows remote attackers to execute arbitrary code on affected installations of Microsoft SharePoint.
What authentication is required to exploit CVE-2021-42309?
Authentication is required to exploit CVE-2021-42309.
How can I fix CVE-2021-42309 on Microsoft SharePoint Server 2019?
To fix CVE-2021-42309 on Microsoft SharePoint Server 2019, apply the patch provided by Microsoft: [url].
How can I fix CVE-2021-42309 on Microsoft SharePoint Foundation 2013?
To fix CVE-2021-42309 on Microsoft SharePoint Foundation 2013, apply the patch provided by Microsoft: [url].
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