A vulnerability, which was classified as critical, has been found in Totolink A7100RU 7.4cu.2313_b20191024. This affects the function
setFirewallType of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument firewallType leads to os command injection.
This vulnerability is uniquely identified as CVE-2026-5691. The attack is possible to be carried out remotely. Moreover, an exploit is present.