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June 9, 2021Severity
High
Analysis Summary
CVE-2021-31963
Microsoft SharePoint Server could allow a remote authenticated attacker to execute arbitrary code on the system. By sending a specially-crafted request, an attacker could exploit this vulnerability to execute arbitrary code on the system with privileges of the victim.
CVE-2021-31964,CVE-2021-31948,CVE-2021-31950
Microsoft SharePoint Server could allow a remote authenticated attacker to conduct spoofing attacks.
Impact
- Unauthorized Access
- Spoofing
Affected Vendors
Microsoft
Affected Products
- Microsoft SharePoint Foundation 2013 SP1
- Microsoft SharePoint Enterprise Server 2016
- Microsoft SharePoint Enterprise Server 2013
- Microsoft SharePoint Server 2019
Remediation
Use Microsoft Automatic Update to apply the appropriate patch for your system, or the Microsoft Security Update Guide to search for available patches.
https://msrc.microsoft.com/update-guide/en-us/vulnerability/CVE-2021-31963