CVE-2021-43226
HIGHCVSS 7.8Known ExploitedCISA Known Exploited Vulnerability
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-43226 ; https://nvd.nist.gov/vuln/detail/CVE-2021-43226
Remediation deadline: October 27, 2025
Ransomware use: Known
Source: NIST NVD · Data may lag official sources by up to one minute