CVE-2026-7139 | Totolink A8000RU 7.1cu.643_b20200521 CGI /cgi-bin/cstecgi.cgi setWiFiAclRules mode os command injection

A vulnerability was found in Totolink A8000RU 7.1cu.643_b20200521. It has been rated as critical. This issue affects the function setWiFiAclRules of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. This manipulation of the argument mode causes os command injection.

This vulnerability is tracked as CVE-2026-7139. The attack is possible to be carried out remotely. Moreover, an exploit is present.