CVE-2026-5688 | Totolink A7100RU 7.4cu.2313_b20191024 /cgi-bin/cstecgi.cgi setDdnsCfg provider os command injection

A vulnerability described as critical has been identified in Totolink A7100RU 7.4cu.2313_b20191024. Impacted is the function setDdnsCfg of the file /cgi-bin/cstecgi.cgi. Such manipulation of the argument provider leads to os command injection.

This vulnerability is traded as CVE-2026-5688. The attack may be launched remotely. Furthermore, there is an exploit available.