Connect your agent
AdvisoriesCriticalCheck your lockfilePluginHow it worksPricing Connect your agent

CVE record · CVE-2021-38650

Microsoft Office Spoofing Vulnerability

CVSS 7.6 HighEPSS 0.016 · 76th percentile

Published by the CVE Program (CNA: microsoft) at 15 Sept 2021, 11:24 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
VendorProductVersions
Microsoft Microsoft 365 Apps for Enterprise
  • affected 16.0.1 to before https://aka.ms/OfficeSecurityReleases custom
Microsoft Microsoft Office 2013 Service Pack 1
  • affected 15.0.0 to before 5381.1000 custom
Microsoft Microsoft Office 2016
  • affected 16.0.0 to before 5215.1000 custom
Microsoft Microsoft Office 2019
  • affected 19.0.0 to before https://aka.ms/OfficeSecurityReleases custom
Microsoft Microsoft Office 2019 for Mac
  • affected 16.0.0 to before 16.53.21091200 custom
Identifiers
CVE-2021-38650
CNA
microsoft
Tags
Published
15 Sept 2021
Updated
10 Aug 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

ScoreRatingCVSSVectorSource
7.6 High 3.1 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 CNA (microsoft)
  • CISA KEV Not listed.
  • EPSS 0.016, the 76th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 15 Sept 2021. New records show when each source confirmed them.

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.