Siemens SCALANCE X Industrial Ethernet Switches have had a few vulnerabilities before. A saved Shodan search show there are at least two available to the Internet, both X204-2 models. The X-200 has two issues:
First it appears to give up the internal IP in the Title element of the HTML:
Second according to the user manual it has default administrative credentials:
Enter your password. If you have not yet set a password, the default passwords as
shipped apply: Enter admin if you selected “admin” as the user name or user if you
The ‘user’ role is read only.