CVE-2020-4870: IBM Mq

High severity, CVSS 7.5. EPSS: 1.7% chance of exploitation in the next 30 days.

IBM MQ 9.2 CD and LTS are vulnerable to a denial of service attack caused by an error processing connecting applications. IBM X-Force ID: 190833.

Affected products

• IBM Mq: version 9.2.0 only

Published 2020-12-21. Last modified 2026-06-17.