CVE-2026-9435 | Totolink A8000RU 7.1cu.643_b20200521 Web Management Interface /cgi-bin/cstecgi.cgi setQosCfg enable os command injection

A vulnerability, which was classified as critical, has been found in Totolink A8000RU 7.1cu.643_b20200521. The affected element is the function setQosCfg of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. Performing a manipulation of the argument enable results in os command injection.

This vulnerability is known as CVE-2026-9435. Remote exploitation of the attack is possible. Furthermore, an exploit is available.