Forticlient different versions, no automatic upgrade to latest = security risk?
So we utilize forticlient on workstations to provide VPN access (remote access). Now our Security Officers have noted that different versions of forticlient has been installed on the workstations. Some run 6.0.x, other 6.4.x, and he noticed 7.0.x is also out. He asked the IT team why this is possible and older versions arent automatically upgraded and whether this posed a security risk. I tried searching for answers on Forticlient documentation but it feels like finding a needle in a stack of hay. I have made this account specifically for this question. Can you guys help me with this? If there is any official documentation on this, i would love to receive a link on them!
With kind regards,
Solimas
Edit: Another issue is, we have licensed ESET as our endpoint protection and we only use Forticlient for VPN connection. I believe EMS required endpoint licenses, which we dont have (we do have fortigates deployed). So im not sure EMS is the correct way.
So the question is, are there any security risks involved when using older versions of Forticlient if its only used for VPN?