CVE-2021-20399

CRITICAL

IBM QRadar SIEM 7.3-7.4.3 GA - XML External Entity Information Disclosure

Title source: manual
STIX 2.1

Description

IBM Qradar SIEM 7.3.0 to 7.3.3 Patch 8 and 7.4.0 to 7.4.3 GA 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: 196073.

References (2)

Core 2
Core References
Patch, Vendor Advisory x_refsource_confirm
https://www.ibm.com/support/pages/node/6475263
VDB Entry, Vendor Advisory vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/196073

Scores

CVSS v3 9.1
EPSS 0.0179
EPSS Percentile 75.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Details

CWE
CWE-611
Status published
Products (3)
ibm/qradar_security_information_and_event_manager 7.3.3 (9 CPE variants)
ibm/qradar_security_information_and_event_manager 7.4.3 (4 CPE variants)
ibm/qradar_security_information_and_event_manager 7.3.0 - 7.3.3
Published Jul 27, 2021
Tracked Since Feb 18, 2026