TeamSpeak has reported a vulnerability in it's client that can potentially lead to RCE. A new version has been released that fixes it. So please update the client in your bot installation as soon as possible as well. Click here for more information.
If you need help or want to discuss things, you now can also join us on our Discord Server!
The bot itself doesn’t use lots of memory but reserves a fair amount. However, this doesn’t count as used, so you don’t need to worry about it. The actual client instances require more RAM, from which a big part is shared between multiple instances - so again: you probably don’t need to worry about it. Google for more information on how to read memory usage on linux.