[rtempaccount1]

Interesting looking project, although at the moment it's only useful for a small range of issues.

One of the harder parts of vulnerability scanning is building and maintaining the plugin database. Nessus, which is one of the older and better known VA tools has 10's of thousands of plugins...

There are other, open source, vulnerability scanning tools available as well like OpenVAS https://www.openvas.org/

[Fnoord]

Nessus used to be FOSS (before 2005). OpenVAS is a Nessus fork.