All versions of Dingtian DT-R002 are vulnerable to an Insufficiently Protected Credentials vulnerability that could allow an attacker to extract the proprietary "Dingtian Binary" protocol password by sending an unauthenticated GET request.
All versions of Dingtian DT-R002 are vulnerable to an Insufficiently Protected Credentials vulnerability that could allow an attacker to retrieve the current user's username without authentication.
relay_cgi.cgi on Dingtian DT-R002 2CH relay devices with firmware 3.1.276A allows an attacker to replay HTTP post requests without the need for authentication or a valid signed/authorized request.