[at]49studebaker:
Yes, you may be able to update it, but i'm sure your file filter driver ist not running, thatfore you'ld have to compile the kernel.
What use does a AV have if it can't filter incoming files itself and which can only update itself?
The last versions CAVL is running properly on were LM 18.0 and Ubuntu 16.04.
If the Comodo developers won't keep their promise to release a new CAVL version this program is dead, sorry!
The actual CAVL version is now about 7 years old - so if you want to compare - it's like trying to install a AV built in 2013 on a new Windows 10 built 1909. Maybe you can install it, but it's blind like a worm and you should not feel save with it.