The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.
It is possible to obtain the version number of the remote ClamAV installation.
By sending a 'VERSION' command to the remote clamd antivirus daemon, it is possible to determine the version of the remote ClamAV software installation.