CVE-2025-3666 | TOTOLINK A3700R 9.1.2u.5822_B20200513 /cgi-bin/cstecgi.cgi setDdnsCfg access control
A vulnerability was found in TOTOLINK A3700R 9.1.2u.5822_B20200513 and classified as critical. Affected by this issue is the function setDdnsCfg of the file /cgi-bin/cstecgi.cgi. The manipulation leads to improper access controls.
This vulnerability is handled as CVE-2025-3666. The attack may be launched remotely. Furthermore, there is an exploit available.
The vendor was contacted early about this disclosure but did not respond in any way.