CVE-2026-7138 | Totolink A8000RU 7.1cu.643_b20200521 CGI /cgi-bin/cstecgi.cgi setNtpCfg tz os command injection

A vulnerability was found in Totolink A8000RU 7.1cu.643_b20200521. It has been declared as critical. This vulnerability affects the function setNtpCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. The manipulation of the argument tz results in os command injection.

This vulnerability is identified as CVE-2026-7138. The attack can be executed remotely. Additionally, an exploit exists.