CVE-2021-38875: IBM Mq

Medium severity, CVSS 6.5. EPSS: 1% chance of exploitation in the next 30 days.

IBM MQ 8.0, 9.0 LTS, 9.1 LTS, 9.2 LTS, 9.1 CD, and 9.2 CD is vulnerable to a denial of service attack caused by an error processing messages. IBM X-Force ID: 208398.

Affected products

• IBM Mq: version 8.0.0.0 only; version 9.0.0.0 only; version 9.1.0 only; version 9.1.0.0 only; version 9.2.0 only

Published 2021-11-23. Last modified 2026-06-17.