The Frontel protocol before 3 on RSI Video Technologies Videofied devices sends a cleartext serial number, which allows remote attackers to determine a hardcoded key by sniffing the network and performing a "jumbled up" calculation with this number.

The Frontel protocol before 3 on RSI Video Technologies Videofied devices sets up AES encryption but sends all traffic in cleartext, which allows remote attackers to obtain sensitive (1) message or (2) MJPEG video data by sniffing the network.

The Frontel protocol before 3 on RSI Video Technologies Videofied devices does not use integrity protection, which makes it easier for man-in-the-middle attackers to (1) initiate a false alarm or (2) deactivate an alarm by modifying the client-server data stream.