High
CVSS: 7.7
ECOVACS robot lawnmowers and vacuums use a deterministic symmetric key to decrypt firmware updates. An attacker can create and encrypt malicious firmware that will be successfully decrypted and installed by the robot.
Medium
CVSS: 4.8
ECOVACS robot lawnmowers store the anti-theft PIN in cleartext on the device filesystem. An attacker can steal a lawnmower, read the PIN, and reset the anti-theft mechanism.
High
CVSS: 7.0
ECOVACS robot lawnmowers and vacuums use a deterministic root password generated based on model and serial number. An attacker with shell access can login as root.