There are some articles in this forum.
Every article starts with "are you sure?" For a reason.
If you 100% understand what you are doing, you don't want ssh disabled. If you understand what you are doing, but corporate compliance force you, the only needed information is: the ssh service is provided by the package/application dropbear.
But as you still will think it is a good idea, see for example: How to disable (temporary!) SSH?
Try to keep up to date backups from your settings, as you will need a full reset, if the Admin Panel fails.
There are security issues within the SSH, yes. But as far as the will be published, shortly afterwards a patch is provided. A fully normal process.
The only issue SSH could not secure is insecure credentials. This one is in your hands.