CVE-2021-31181

Public Exploit
Microsoft SharePoint Remote Code Execution Vulnerability

Description

Microsoft SharePoint Remote Code Execution Vulnerability

Category

8.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 18.58% Top 10%
Vendor Advisory microsoft.com
Affected: Microsoft Microsoft SharePoint Enterprise Server 2016
Affected: Microsoft Microsoft SharePoint Server 2019
Affected: Microsoft Microsoft SharePoint Foundation 2013 Service Pack 1
Published at:
Updated at:

References

Link Tags
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31181 patch vendor advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-573/ third party advisory vdb entry
http://packetstormsecurity.com/files/163208/Microsoft-SharePoint-Unsafe-Control-And-ViewState-Remote-Code-Execution.html third party advisory vdb entry exploit
https://packetstorm.news/files/id/163208

Frequently Asked Questions

What is the severity of CVE-2021-31181?
CVE-2021-31181 has been scored as a high severity vulnerability.
How to fix CVE-2021-31181?
To fix CVE-2021-31181, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-31181 being actively exploited in the wild?
It is possible that CVE-2021-31181 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~19% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-31181?
CVE-2021-31181 affects Microsoft Microsoft SharePoint Enterprise Server 2016, Microsoft Microsoft SharePoint Server 2019, Microsoft Microsoft SharePoint Foundation 2013 Service Pack 1.
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