CVE-2017-12174: Apache Artemis

High severity, CVSS 7.5. EPSS: 6% chance of exploitation in the next 30 days.

It was found that when Artemis and HornetQ before 2.4.0 are configured with UDP discovery and JGroups discovery a huge byte array is created when receiving an unexpected multicast message. This may result in a heap memory exhaustion, full GC, or OutOfMemoryError.

Affected products

• Apache Artemis: before 2.4.0 (fixed in 2.4.0)
• Red Hat Hornetq: before 2.4.0 (fixed in 2.4.0)
• Red Hat JBoss Enterprise Application Platform: version 6.4.0 only; version 7.1.0 only; version 6.0.0 only

Published 2018-03-07. Last modified 2026-06-17.