CVE-2018-17900: Yokogawa Fcj Firmware

Critical severity, CVSS 9.8. EPSS: 1.9% chance of exploitation in the next 30 days.

Yokogawa STARDOM Controllers FCJ, FCN-100, FCN-RTU, FCN-500, All versions R4.10 and prior, The web application improperly protects credentials which could allow an attacker to obtain credentials for remote access to controllers.

Affected products

• Yokogawa Fcj Firmware: up to and including r4.10
• Yokogawa Fcn-100 Firmware: up to and including r4.10
• Yokogawa Fcn-500 Firmware: up to and including r4.10
• Yokogawa Fcn-Rtu Firmware: up to and including r4.10

Published 2018-10-12. Last modified 2026-06-17.