Firstly, I think you've posted this in the wrong section of the forums (TelePresence).
But, if you read the notices in detail, and especially the ones for each specific product, they will usually let you know a workaround if there is one.
For some of these vulnerabilities mentioned, you need to have physical access to the box, so making sure they're in a secured location is a good first step.
Wayne
Please remember to mark helpful responses and to set your question as answered if appropriate.