CVE-2019-4614: IBM Mq

Medium severity, CVSS 6.5. EPSS: 1.6% chance of exploitation in the next 30 days.

IBM MQ and IBM MQ Appliance 8.0 and 9.0 LTS client connecting to a Queue Manager could cause a SIGSEGV denial of service caused by converting an invalid message. IBM X-Force ID: 168639.

Affected products

• IBM Mq: from 8.0.0.0, before 8.0.0.14 (fixed in 8.0.0.14); from 9.0.0.0, before 9.0.0.8 (fixed in 9.0.0.8); from 9.1.0, before 9.1.4 (fixed in 9.1.4); from 9.1.0.0, before 9.1.0.4 (fixed in 9.1.0.4)
• IBM Mq Appliance: from 8.0.0.0, before 8.0.0.14 (fixed in 8.0.0.14); from 9.1.0, before 9.1.4 (fixed in 9.1.4); from 9.1.0.0, before 9.1.0.4 (fixed in 9.1.0.4)

Published 2020-01-28. Last modified 2026-06-17.