Insecure Default Initialization of Resource
An issue was discovered on Tenda AC15 devices. A remote, unauthenticated attacker can make a request to /goform/telnet, creating a telnetd service on the device. This service is password protected; however, several default accounts exist on the device that are root accounts, which can be used to log in.
CWE-1188 - Insecure Default Initialization of Resource
The software initializes or sets a resource with a default that is intended to be changed by the administrator, but the default is not secure.