Connect your agent
AdvisoriesCriticalCheck your lockfilePluginHow it worksPricing Connect your agent

CVE record · CVE-2022-21971

Windows Runtime Remote Code Execution Vulnerability

CVSS 7.8 HighCriticalIn CISA KEVEPSS 0.54 · 99th percentile

Critical, because:

  • In CISA’s KEV catalogue since 18 Aug 2022: it is known to be exploited.
  • CVSS score 7.8 (7.0 or more) and EPSS 0.54 (0.1 or more): a high score and a real chance of exploitation in the next 30 days.

How we decide what’s critical

Published by the CVE Program (CNA: microsoft) at 9 Feb 2022, 16:36 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 Windows 10 Version 1809
  • affected 10.0.17763.0 to before 10.0.17763.2565 custom
Microsoft Windows 10 Version 1809
  • affected 10.0.0 to before 10.0.17763.2565 custom
Microsoft Windows Server 2019
  • affected 10.0.17763.0 to before 10.0.17763.2565 custom
Microsoft Windows Server 2019 (Server Core installation)
  • affected 10.0.17763.0 to before 10.0.17763.2565 custom
Microsoft Windows 10 Version 1909
  • affected 10.0.0 to before 10.0.18363.2094 custom
Microsoft Windows 10 Version 21H1
  • affected 10.0.0 to before 10.0.19043.1526 custom
Microsoft Windows Server 2022
  • affected 10.0.20348.0 to before 10.0.20348.524 custom
Microsoft Windows 10 Version 20H2
  • affected 10.0.0 to before 10.0.19042.1526 custom
Microsoft Windows Server version 20H2
  • affected 10.0.0 to before 10.0.19042.1526 custom
Microsoft Windows 11 version 21H2
  • affected 10.0.0 to before 10.0.22000.493 custom
Microsoft Windows 10 Version 21H2
  • affected 10.0.19043.0 to before 10.0.19044.1526 custom
Identifiers
CVE-2022-21971
CNA
microsoft
Weakness (CWE)
CWE-824
Tags
Published
9 Feb 2022
Updated
21 Oct 2025

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
7.8 High 3.1 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C CNA (microsoft)
  • CISA KEV Listed since 18 Aug 2022: known to be exploited.
  • EPSS 0.54, the 99th 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 9 Feb 2022. 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.