SEL AcSELerator Architect version 2.2.24.0 and prior can be exploited when the AcSELerator Architect FTP client connects to a malicious FTP server, which may cause denial of service via 100% CPU utilization. Restart of the application is required.
https://ics-cert.us-cert.gov/advisories/ICSA-18-191-02
http://packetstormsecurity.com/files/152951/SEL-AcSELerator-Architect-2.2.24-Denial-Of-Service.html