SSA-085541 V1.0: Missing Authentication in Critical Function in ActiveMQ Artemis (CVE-2026-27446) in Opcenter RDnL

Risk Summary

<p>Opcenter RDnL is affected by missing authentication in critical function in ‘ActiveMQ Artemis’. An unauthenticated attacker within the adjacent network could use the Core protocol to force a target broker to establish an outbound Core federation connection to an attacker-controlled rogue broker. This could potentially result in availability impacts or message injection into any queue via the rogue broker. Breaking the integrity of a message has a low impact due to missing auto refresh functionality and it does not contain any confidential information.</p> <p>ActiveMQ Artemis has released a new version and Siemens recommends to update to the latest version.</p>

CVEs (1)

Remediations

• Refer to Siemens ProductCERT advisory for patch and remediation guidance.

Affected Vendors

Affected Products (1)