Improper input validation vulnerability in pfSense CE and pfSense Plus (pfSense CE software versions prior to 2.6.0 and pfSense Plus software versions prior to 22.01) allows a remote attacker with the privilege to change OpenVPN client or server settings to execute an arbitrary command.
https://jvn.jp/en/jp/JVN87751554/index.html
https://docs.netgate.com/downloads/pfSense-SA-22_03.webgui.asc