CVE-2018-1388: IBM WebSphere Mq

High severity, CVSS 7.5. EPSS: 2.2% chance of exploitation in the next 30 days.

GSKit V7 may disclose side channel information via discrepancies between valid and invalid PKCS#1 padding. IBM X-Force ID: 138212.

Affected products

• IBM WebSphere Mq: version 7.0.1.0 only; version 7.0.1.1 only; version 7.0.1.2 only; version 7.0.1.3 only; version 7.0.1.4 only; version 7.0.1.5 only; …

Published 2018-02-07. Last modified 2026-06-17.