CVE-2020-4682: IBM Mq

Critical severity, CVSS 9.8. EPSS: 7.2% chance of exploitation in the next 30 days.

IBM MQ 7.5, 8.0, 9.0, 9.1, 9.2 LTS, and 9.2 CD could allow a remote attacker to execute arbitrary code on the system, caused by an unsafe deserialization of trusted data. An attacker could exploit this vulnerability to execute arbitrary code on the system. IBM X-Force ID: 186509.

Affected products

• IBM Mq: version 8.0.0.0 only; version 8.0.0.1 only; version 8.0.0.2 only; version 8.0.0.3 only; version 8.0.0.4 only; version 8.0.0.5 only; …
• IBM Mq Appliance: version 9.2.0.0 only
• IBM WebSphere Mq: version 7.5.0.0 only; version 7.5.0.1 only; version 7.5.0.2 only; version 7.5.0.3 only; version 7.5.0.4 only; version 7.5.0.5 only; …

Published 2021-01-28. Last modified 2026-06-17.