CVE-2026-5851 | Totolink A7100RU 7.4cu.2313_b20191024 CGI /cgi-bin/cstecgi.cgi setUPnPCfg enable os command injection

A vulnerability was found in Totolink A7100RU 7.4cu.2313_b20191024. It has been declared as critical. This impacts the function setUPnPCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. The manipulation of the argument enable results in os command injection.

This vulnerability is identified as CVE-2026-5851. The attack can be executed remotely. Additionally, an exploit exists.