CVE-2021-40484: Microsoft SharePoint Server Spoofing Vulnerability

Overview

Severity

High (CVSS 7.6)

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N/E:U/RL:O/RC:C

Category

Spoofing

Exploit Status

Not Exploited

Exploitation Likelihood

Less Likely

Patch Tuesday

2021-Oct

Released

2021-10-12

EPSS Score

3.45% (percentile: 87.5%)

Affected Products (3)

Microsoft Office

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

Security Updates (3)

• 5002029
• 5002028
• 5002042

Acknowledgments

<a href="https://twitter.com/rskvp93">rskvp93</a> with <a href="https://viettelcybersecurity.com">Viettel Cyber Security</a>

Revision History

• 2021-10-12: Information published.