A vulnerability classified as critical has been found in Totolink A8000RU 7.1cu.643_b20200521 . This affects the function setIpQosRules of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface . This manipulation of the argument Comment causes os command injection. This vulnerability is registered as CVE-2026-9475 . Remote exploitation of the attack is possible. Furthermore, an exploit is available.