The scanner device boots into a kiosk mode by default and opens the Scan2Net interface in a browser window. This browser is run with the permissions of the root user. There are also several other applications running as root user. This can be confirmed by running ps aux as the root user and observing the output.
The product performs an operation at a privilege level that is higher than the minimum level required, which creates new weaknesses or amplifies the consequences of other weaknesses.