A vulnerability described as critical has been identified in Totolink A8000RU 7.1cu.643_b20200521 . This vulnerability affects the function setWiFiAdvancedCfg of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface . The manipulation of the argument bgProtection results in os command injection. This vulnerability is reported as CVE-2026-9432 . The attack can be launched remotely. Moreover, an exploit is present.