Arris TR3300 v1.0.13 was discovered to contain a command injection vulnerability in the pppoe function via the pppoe_username, pppoe_passwd, and pppoe_servicename parameters. This vulnerability allows attackers to execute arbitrary commands via a crafted request.
https://github.com/wudipjq/my_vuln/blob/main/ARRIS/vuln_13/13.md