CVE-2026-82784: Contec Co., Ltd Remote I/o Coupler Unit Server Type Cpsn-MCB271-*

Medium severity, CVSS 6.5. EPSS: 0.3% chance of exploitation in the next 30 days.

Missing authentication for critical function vulnerability exists in Remote I/O Coupler Unit (Server Type) CPSN-MCB271-*. An attacker may execute a REST API without authentication, which could allow the attacker to retrieve I/O values and/or control the output.

Affected products

• Contec Co., Ltd Remote I/o Coupler Unit Server Type Cpsn-MCB271-*: before 1.82 (fixed in 1.82)

Published 2026-09-14. Last modified 2026-09-16.