A vulnerability, which was classified as critical , was found in Totolink A8000RU 7.1cu.643_b20200521 . Impacted is the function setParentalRules of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface . Executing a manipulation of the argument enable can lead to os command injection. This vulnerability appears as CVE-2026-9478 . The attack may be performed from remote. In addition, an exploit is available.