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CVE-2020-17060: Microsoft SharePoint Server Spoofing Vulnerability

• Severity: medium (CVSS 5.8 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-11-11 · updated 2026-06-17

Description

Microsoft SharePoint Server Spoofing Vulnerability

Affected products

• Microsoft SharePoint Server: 2013-sp1, 2016
• Microsoft SharePoint Server: 2010-sp2, 2019
• Microsoft SharePoint Enterprise Server 2013 Service Pack 1: from 15.0.0 before publication — fixed in publication
• Microsoft SharePoint Server 2010 Service Pack 2: from 13.0.0.0 before publication — fixed in publication
• Microsoft Sharepoint Enterprise Server 2016: from 16.0.0 before publication — fixed in publication
• Microsoft SharePoint Server: from 16.0.0 before publication — fixed in publication

How to fix

Upgrade to a fixed version: Microsoft SharePoint Enterprise Server 2013 Service Pack 1 publication; Microsoft SharePoint Server 2010 Service Pack 2 publication; Microsoft Sharepoint Enterprise Server 2016 publication; Microsoft SharePoint Server publication. Check the vendor advisory for mitigations.

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-17060
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-17060

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