for those using the Arduino IDE. Think to update to the latest version. Log4Shell has been removed to prevent any further issue.
ARDUINO 1.8.19 2021.12.20 SECURITY HOTFIX RELEASE
[ide]
* Removed log4j from IDE. Fix CVE-2021-45105, CVE-2021-45046
ARDUINO 1.8.19 2021.12.20 SECURITY HOTFIX RELEASE
[ide]
* Removed log4j from IDE. Fix CVE-2021-45105, CVE-2021-45046