CVE-2017-8866: Cognitoys Stemosaur Firmware

Medium severity, CVSS 5.9. EPSS: 0.6% chance of exploitation in the next 30 days.

Elemental Path's CogniToys Dino smart toys through firmware version 0.0.794 share a fixed small pool of hardcoded keys, allowing a remote attacker to use a different Dino device to decrypt VoIP traffic between a child's Dino and remote server.

Affected products

• Cognitoys Stemosaur Firmware: up to and including 0.0.794

Published 2017-12-11. Last modified 2026-06-17.