Thought that it might be installed as part of DSM... ?? Dunno if he uses it, I don't know if I used it back in the day...... Did search on GLPI and I doubt I ever used it... Doesn't sound familiar at all...
From an end user standpoint, this is not the first time a Synology named app that I don't remember has been mentioned in Security Notification.....
Problem is: Determining if it is something I've used, or got automatically loaded in the past....
It's only when the fix is mentioned to be part of DSM upgrade, that I understand what's the upgrade path... A V10.x upgrade of an unfamiliar named APP not only confuses a person, but determining where to go for further info on that APP complicates the 'what-to-do'!