CVE-2023-33375: Connectedio Connected Io

Critical severity, CVSS 9.8. EPSS: 0.8% chance of exploitation in the next 30 days.

Connected IO v2.1.0 and prior has a stack-based buffer overflow vulnerability in its communication protocol, enabling attackers to take control over devices.

Affected products

• Connectedio Connected Io: up to and including 2.1.0

Published 2023-08-04. Last modified 2026-06-17.