CVE-2021-34517: Microsoft SharePoint Server Spoofing Vulnerability

Overview

Severity

Medium (CVSS 5.3)

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C

Category

Spoofing

Exploit Status

Not Exploited

Exploitation Likelihood

Less Likely

Patch Tuesday

2021-Jul

Released

2021-07-13

EPSS Score

1.52% (percentile: 81.2%)

Affected Products (4)

Microsoft Office

• Microsoft SharePoint Enterprise Server 2016
• Microsoft SharePoint Enterprise Server 2013 Service Pack 1
• Microsoft SharePoint Server 2019
• Microsoft SharePoint Foundation 2013 Service Pack 1

Security Updates (4)

• 5001976
• 5001984
• 5001975
• 5001992

Acknowledgments

<a href="https://twitter.com/mwulftange">Markus Wulftange</a>

Revision History

• 2021-07-13: Information published.