CVE-2022-21971

High (7.8) in Microsoft Windows. In CISA KEV since 2022-08-18. EPSS 54% chance of exploitation in the next 30 days.

EPSS

54% chance of exploitation in the next 30 days; higher than 98% of CVEs (scores of 2026-10-31)

CISA KEV

listed 2022-08-18, due 2022-09-08

CWE

CWE-824

Published

2022-02-09

Modified

2026-06-17

Record from

the NVD, synced 2026-10-19

Affected

• microsoft:windows_10_1809
• microsoft:windows_10_1909
• microsoft:windows_10_20h2
• microsoft:windows_10_21h1
• microsoft:windows_10_21h2
• microsoft:windows_11_21h2
• microsoft:windows_server_2019
• microsoft:windows_server_2022
• microsoft:windows_server_20h2

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-21971
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-21971
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-21971

Check your stackJSON