This indicates an attack attempt to exploit a Command Injection Vulnerability in TP-Link Tapo C200 IP Camera.
The vulnerability is due to insufficient sanitizing of user supplied inputs in the application. An unauthenticated remote attacker may be able to exploit this to execute arbitrary commands within the context of the application.
Tapo C200 version 1.15 and below
System Compromise: Remote attackers can gain control of vulnerable systems.
Apply the most recent upgrade or patch from the vendor.