CVE-2026-22535: Efacec Qc 60/90/120

High severity, CVSS 8.9. EPSS: 0.1% chance of exploitation in the next 30 days.

An attacker with the ability to interact through the network and with access credentials, could, thanks to the unsecured (unencrypted) MQTT communications protocol, write on the server topics of the board that controls the MQTT communications

Affected products

• Efacec Qc 60/90/120: version 8 only

Published 2026-01-07. Last modified 2026-06-17.