CVE-2021-20479: IBM Cloud Pak System

High severity, CVSS 7.5. EPSS: 0.7% chance of exploitation in the next 30 days.

IBM Cloud Pak System 2.3.0 through 2.3.3.3 Interim Fix 1 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information. IBM X-Force ID: 197498.

Affected products

• IBM Cloud Pak System: from 2.3.0.0, before 2.3.3.4 (fixed in 2.3.3.4)

Published 2022-05-09. Last modified 2026-06-17.