CVE-2020-5609: Yokogawa b/m9000cs Firmware

Critical severity, CVSS 9.8. EPSS: 2.1% chance of exploitation in the next 30 days.

Directory traversal vulnerability in CAMS for HIS CENTUM CS 3000 (includes CENTUM CS 3000 Small) R3.08.10 to R3.09.50, CENTUM VP (includes CENTUM VP Small, Basic) R4.01.00 to R6.07.00, B/M9000CS R5.04.01 to R5.05.01, and B/M9000 VP R6.01.01 to R8.03.01 allows a remote unauthenticated attacker to create or overwrite arbitrary files and run arbitrary commands via unspecified vectors.

Affected products

• Yokogawa b/m9000cs Firmware: from r5.04.01, up to and including r5.05.01
• Yokogawa b/m9000vp Firmware: from r6.01.01, up to and including r8.03.01
• Yokogawa Centum Cs 3000 Firmware: from r3.08.10, up to and including r3.09.50
• Yokogawa Centum Vp Firmware: from r4.01.00, up to and including r4.03.00; from r5.01.00, up to and including r5.04.20; from r6.01.00, up to and including r6.07.00

Published 2020-08-05. Last modified 2026-06-17.