CVE-2020-4509: IBM Qradar Security Information And Event Manager

High severity, CVSS 7.6. EPSS: 1.5% chance of exploitation in the next 30 days.

IBM QRadar SIEM 7.3 and 7.4 is vulnerable to an XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources. IBM X-Force ID: 182364.

Affected products

• IBM Qradar Security Information And Event Manager: version 7.3.0 only; version 7.4.0 only

Published 2020-06-04. Last modified 2026-06-17.