CVE-2021-20337: IBM Qradar Security Information And Event Manager

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

IBM QRadar SIEM 7.3.0 to 7.3.3 Patch 8 and 7.4.0 to 7.4.3 GA uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information. IBM X-Force ID: 194448.

Affected products

• IBM Qradar Security Information And Event Manager: from 7.3.0, before 7.3.3 (fixed in 7.3.3); from 7.4.0, before 7.4.3 (fixed in 7.4.3); version 7.3.3 only; version 7.4.3 only

Published 2021-07-26. Last modified 2026-06-17.