CVE-2026-7156 | Totolink A8000RU 7.1cu.643_b20200521 CGI /cgi-bin/cstecgi.cgi CsteSystem HTTP os command injection

A vulnerability labeled as critical has been found in Totolink A8000RU 7.1cu.643_b20200521. Affected is the function CsteSystem of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. The manipulation of the argument HTTP results in os command injection.

This vulnerability is cataloged as CVE-2026-7156. The attack may be launched remotely. Furthermore, there is an exploit available.