A vulnerability, which was classified as critical , was found in Totolink A8000RU 7.1cu.643_b20200521 . This vulnerability affects the function setDiagnosisCfg of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface . The manipulation of the argument ip results in os command injection. This vulnerability is identified as CVE-2026-9384 . The attack can be executed remotely. Additionally, an exploit exists.