A command injection vulnerability in the Nmap diagnostic tool in the admin web console of Extron SMP 111 <=3.01, SMP 351 <=2.16, SMP 352 <= 2.16, and SME 211 <= 3.02, allows a remote authenticated attacker to execute arbitrary commands as root on the underlying operating system.
https://www.extron.com/article/smp
https://ryanmroth.com/articles/exploiting-extron-smp-command-injection