BY: Help Net SecurityJanuary 25, 2019
Illumant researcher Chris Anastasio has discovered a serious vulnerability in Check Point’s security software.

It affects ZoneAlarm Free Firewall and ZoneAlarm Free Antivirus + Firewall and, if exploited, it may allow a malicious user with low privilege access to escalate privileges to SYSTEM level.
WCF and self-signed code in the spotlight
The vulnerability is due to insecure implementation of services developed using Windows Communication Foundation or “WCF.” It targets a .NET service in ZoneAlarm that runs as SYSTEM and utilizes WCF to handle inter-process communications.
Full Article Here:
https://www.helpnetsecurity.com/2019/01/25/check-point-zone-alarm-flaw/