CVE-2021-28450: Microsoft SharePoint Denial of Service Update

Overview

Severity

Medium (CVSS 5)

CVSS Vector

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

Category

Denial of Service

Exploit Status

Not Exploited

Exploitation Likelihood

Less Likely

Patch Tuesday

2021-Apr

Released

2021-04-13

EPSS Score

1.99% (percentile: 83.6%)

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 2010 Service Pack 2

Security Updates (4)

• 4504719
• 4493170
• 4504716
• 4504709

Acknowledgments

Yuhao Weng (<a href="https://twitter.com/cjm00nw">@cjm00nw</a>) of <a href="https://www.sangfor.com/">Sangfor</a> & Steven Seeley (<a href="https://twitter.com/steventseeley">@ϻг_ϻε</a>) & Zhiniang Peng(<a href="https://twitter.com/edwardzpeng">@edwardzpeng</a>

Revision History

• 2021-04-13: Information published.