Polycom HDX Video End Points before 3.0.4 and UC APL before 2.7.1.J allows remote authenticated users to execute arbitrary commands as demonstrated by a ; (semicolon) to the ping command feature.
A vulnerability in the web-based management interface of VVX, Trio, SoundStructure, SoundPoint, and SoundStation phones running Polycom UC Software, if exploited, could allow an authenticated, remote attacker with admin privileges to cause a denial of service (DoS) condition or execute arbitrary code.