CVE-2026-7136 | Totolink A8000RU 7.1cu.643_b20200521 CGI /cgi-bin/cstecgi.cgi setDmzCfg wanIdx os command injection

A vulnerability was found in Totolink A8000RU 7.1cu.643_b20200521 and classified as critical. Affected by this issue is the function setDmzCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Executing a manipulation of the argument wanIdx can lead to os command injection.

The identification of this vulnerability is CVE-2026-7136. The attack may be launched remotely. Furthermore, there is an exploit available.