CVE-2022-21971

Name: CVE-2022-21971
Creator: NVD / NIST
Published: 2022-02-09T17:15:08.64+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10Actively ExploitedEPSS 53.65%

Last modified Jun 17, 2026

CVE-2022-21971 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. Windows Runtime Remote Code Execution Vulnerability. CISA has confirmed active exploitation in the wild. EPSS estimates a 53.65% chance of exploitation in the next 30 days.

Description

Windows Runtime Remote Code Execution Vulnerability

Metrics

CVSS 3.1

7.8/10

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

EPSS Probability

53.65%

98.9th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by Sep 8, 2022.

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Microsoft	Windows 10 1809	< 10.0.17763.2565
Microsoft	Windows 10 1909	< 10.0.18363.2094
Microsoft	Windows 10 20h2	< 10.0.19042.1526
Microsoft	Windows 10 21h1	< 10.0.19043.1526
Microsoft	Windows 10 21h2	< 10.0.19044.1526
Microsoft	Windows 11 21h2	< 10.0.22000.493
Microsoft	Windows Server 2019	< 10.0.17763.2565
Microsoft	Windows Server 2022	< 10.0.20348.524
Microsoft	Windows Server 20h2	< 10.0.19042.1526

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-21971Patch, Vendor Advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-21971Patch, Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-21971US Government Resource

Timeline

Published: Feb 9, 2022
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2022-21971?

Windows Runtime Remote Code Execution Vulnerability

How severe is CVE-2022-21971?

CVE-2022-21971 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 53.65% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.

How do I fix CVE-2022-21971?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-21971?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST