Skip to content
Fencer Vulns
high 7.2

CVE-2021-42294 json

Microsoft SharePoint Server Remote Code Execution Vulnerability

published 2021-12-15 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-29269

cvss
7.2
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
2.3%
EPSS 2.3% chance of exploitation in 30 days, percentile 83%
public exploits
0
none known

Summary

Microsoft SharePoint Server Remote Code Execution Vulnerability

Patch / fix

  • Microsoft Microsoft SharePoint Enterprise Server 2016 16.0.5254.1000
  • Microsoft Microsoft SharePoint Enterprise Server 2013 Service Pack 1 15.0.5407.1000
  • Microsoft Microsoft SharePoint Server 2019 16.0.10381.20001
  • Microsoft Microsoft SharePoint Server Subscription Edition 16.0.14326.20620
  • Microsoft SharePoint Server Subscription Edition Language Pack 16.0.14326.20620
  • Microsoft Microsoft SharePoint Foundation 2013 Service Pack 1 15.0.5407.1000

Exploit prediction

2.31% chance of exploitation in the next 30 days, higher than 83% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.2 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
CNA 3.1 7.2 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 7.2 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.5 AV:N/AC:L/Au:S/C:P/I:P/A:P

Affected products

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

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.