CVE-2018-1551: IBM WebSphere Mq

High severity, CVSS 7.5. EPSS: 1.1% chance of exploitation in the next 30 days.

IBM WebSphere MQ 8.0.0.2 through 8.0.0.8 and 9.0.0.0 through 9.0.0.3 could allow users to have more authority than they should have if an MQ administrator creates an invalid user group name. IBM X-Force ID: 142888.

Affected products

• IBM WebSphere Mq: from 8.0.0.2, up to and including 8.0.0.8; from 9.0.0.0, up to and including 9.0.0.3

Published 2018-08-06. Last modified 2026-06-17.