A remote code execution issue in the ping command on Poly Trio 8800 5.7.1.4145 devices allows remote authenticated users to execute commands via unspecified vectors.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2018-9617
http://unkl4b.github.io/Authenticated-RCE-in-Polycom-Trio-8800-pt-1/