CVE-2026-82784: Medium severity Remote I/O Coupler Unit (Server Type) CPSN-MCB271-* vulnerability
Published Sep 14, 2026
·Updated
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 Software
1 affected component
Remote I/O Coupler Unit (Server Type) CPSN-MCB271-*
Event History
Sep 14, 2026
CVE Published
via MITRE·06:43 AM
Data Sourced
via MITRE·06:43 AM
DescriptionSeverity
Frequently Asked Questions
1
Which devices should be included in an exposure review?
Review Remote I/O Coupler Unit (Server Type) devices identified as CPSN-MCB271-*.
2
Does exploitation require credentials or user interaction?
No. The vulnerability is rated with no privileges required and no user interaction required; an attacker can execute the affected REST API without authentication.