CVE-2023-28513: IBM Mq

High severity, CVSS 7.5. EPSS: 1% chance of exploitation in the next 30 days.

IBM MQ 9.0 LTS, 9.1 LTS, 9.2 LTS, 9.3 LTS, 9.2 CD, and 9.3 CD and IBM MQ Appliance 9.2 LTS, 9.3 LTS, 9.2 CD, and 9.2 LTS, under certain configurations, is vulnerable to a denial of service attack caused by an error processing messages. IBM X-Force ID: 250397.

Affected products

• IBM Mq: version 9.0.0.0 only; version 9.1.0.0 only; version 9.2.0 only; version 9.3.0 only
• IBM Mq Appliance: version 9.2.0.0 only; version 9.3.0.0 only

Published 2023-07-19. Last modified 2026-06-17.