GVM? (or OpenVAS?) Greenbone Vulnerability Manager(GVM, a.k.a OpenVAS). OpenVAS is a fork of Nessus. Install GVM How to install OpenVAS on Kali: sudo apt install openvas tried gvm-setup, but Error occured: $ sudo gvm-setup [>] Starting PostgreSQL service [-] ERROR: The default PostgreSQL version (15) is not 16 that is required by libgvmd [-] ERROR: Use pg_upgradecluster to update your PostgreSQL cluster solve the problem $ psql --version psql (PostgreSQL) 16.