Tenda AC8/AC10/AC18 HTTP Request telnet command injection

A vulnerability, which was classified as critical, has been found in Tenda AC8, AC10 and AC18 16.03.10.20. Affected by this issue is some unknown functionality of the file /goform/telnet of the component HTTP Request Handler. The manipulation leads to command injection. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.