CVE-2022-21971

HIGH7.8

CISA KEV

Published 2022-02-09 · Updated 2026-06-17 · Source secure@microsoft.com

Summary

CVE-2022-21971 is a high-severity (CVSS 7.8) vulnerability in Microsoft Windows. CISA added it to the Known Exploited Vulnerabilities catalog on August 18, 2022, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by September 8, 2022. CISA does not currently list it as used in ransomware campaigns. Microsoft has 390 vulnerabilities in the KEV catalog, 117 of them linked to ransomware.

All 390 known-exploited Microsoft vulnerabilities →

Description

Windows Runtime Remote Code Execution Vulnerability

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

CWE-824CWE-824

CISA Known-Exploited Vulnerability

Product: Microsoft — Windows

Name: Microsoft Windows Runtime Remote Code Execution Vulnerability

Date added: 2022-08-18 · Due: 2022-09-08

Required action: Apply updates per vendor instructions.

References

View on NVD

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