CVE-2021-43225

CVE-2021-43225 is a high vulnerability published on December 15, 2021. Bot Framework SDK Remote Code Execution Vulnerability

CVE-2021-43225 was first published in the National Vulnerability Database on December 15, 2021, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

CVE-2021-43225 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 84.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

CVE-2021-43225 has a CVSS v3 base score of 7.5 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.8.

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-43225, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.