CVE-2020-4465: IBM Mq Appliance

Medium severity, CVSS 6.5. EPSS: 1.9% chance of exploitation in the next 30 days.

IBM MQ, IBM MQ Appliance, and IBM MQ for HPE NonStop 8.0, 9.1 CD, and 9.1 LTS is vulnerable to a buffer overflow vulnerability due to an error within the channel processing code. A remote attacker could overflow the buffer using an older client and cause a denial of service. IBM X-Force ID: 181562.

Affected products

• IBM Mq Appliance: from 8.0, before 8.0.0.15 (fixed in 8.0.0.15); from 9.1.0.0, before 9.1.0.6 (fixed in 9.1.0.6); from 9.1.0.0, before 9.2.0.0 (fixed in 9.2.0.0)

Published 2020-07-28. Last modified 2026-06-17.