Executive brief
Trueview T18161 S is a network-connected security camera that uses MQTT messaging to receive and execute remote commands such as pan-tilt-zoom (PTZ) control. An attacker on the network can intercept MQTT messages, replay them, or modify security-related fields (nonce, timestamp, signature) without validation, allowing unauthorized commands to be executed on the camera.
Technical details
The vulnerability is an improper verification / insufficient validation of MQTT message integrity and replay protection. The Trueview T18161 S firmware 6.0.23.4 receives MQTT messages containing security-related fields (nonce, time, sign) that are intended to provide message authenticity, integrity, and replay protection, but the device does not adequately enforce validation of these fields before executing commands. An attacker with network access to the MQTT broker (typically TCP/1883) can capture legitimate MQTT messages and replay them or modify the security-related parameters; the device accepts both replayed and modified messages and executes the associated PTZ operations. The root cause is the lack of proper cryptographic binding and strict validation of security parameters before processing commands. No patch is currently documented as available.
Affected products
- Trueview T18161 S 6.0.23.4
Timeline
- 2026-09-04: disclosed