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TI-2021-03671 Aliases CVE-2021-20399GHSA-3gg6-gcfv-5r7j

XML external entity injection in IBM QRadar SIEM

Priority MEDIUM 43CWE-611Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · None · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

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.

Why it matters now

EPSS 0.01788 78th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
IBMQRadar SIEM7.3.0; 7.4.0; 7.4.3; 7.3.3.Patch.8—No fix listedCNA
  • QRadar SIEM VendorIBM Affected 7.3.0; 7.4.0; 7.4.3; 7.3.3.Patch.8 Fixed in — No fix listed CNA

CPE configurations NVD · 15

CPEVersionsRoleVendor
cpe:2.3:a:ibm:qradar_security_information_and_event_manager:*:*:*:*:*:*:*:*7.3.0 to before 7.3.3; 7.4.0 to before 7.4.3VulnerableIBM
cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.3.3:-:*:*:*:*:*:*7.3.3VulnerableIBM
cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.3.3:p1:*:*:*:*:*:*7.3.3 p1VulnerableIBM
cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.3.3:p2:*:*:*:*:*:*7.3.3 p2VulnerableIBM
cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.3.3:p3:*:*:*:*:*:*7.3.3 p3VulnerableIBM
cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.3.3:p4:*:*:*:*:*:*7.3.3 p4VulnerableIBM
cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.3.3:p5:*:*:*:*:*:*7.3.3 p5VulnerableIBM
cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.3.3:p6:*:*:*:*:*:*7.3.3 p6VulnerableIBM
cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.3.3:p7:*:*:*:*:*:*7.3.3 p7VulnerableIBM
cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.3.3:p8:*:*:*:*:*:*7.3.3 p8VulnerableIBM
  • cpe:2.3:a:ibm:qradar_security_information_and_event_manager:*:*:*:*:*:*:*:* Versions 7.3.0 to before 7.3.3; 7.4.0 to before 7.4.3 Vulnerable ·IBM
  • cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.3.3:-:*:*:*:*:*:* Versions 7.3.3 Vulnerable ·IBM
  • cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.3.3:p1:*:*:*:*:*:* Versions 7.3.3 p1 Vulnerable ·IBM
  • cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.3.3:p2:*:*:*:*:*:* Versions 7.3.3 p2 Vulnerable ·IBM
  • cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.3.3:p3:*:*:*:*:*:* Versions 7.3.3 p3 Vulnerable ·IBM
  • cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.3.3:p4:*:*:*:*:*:* Versions 7.3.3 p4 Vulnerable ·IBM
  • cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.3.3:p5:*:*:*:*:*:* Versions 7.3.3 p5 Vulnerable ·IBM
  • cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.3.3:p6:*:*:*:*:*:* Versions 7.3.3 p6 Vulnerable ·IBM
  • cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.3.3:p7:*:*:*:*:*:* Versions 7.3.3 p7 Vulnerable ·IBM
  • cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.3.3:p8:*:*:*:*:*:* Versions 7.3.3 p8 Vulnerable ·IBM
Show 5 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.4.3:-:*:*:*:*:*:*7.4.3VulnerableIBM
cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.4.3:fix_pack_1:*:*:*:*:*:*7.4.3 fix_pack_1VulnerableIBM
cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.4.3:fix_pack_2:*:*:*:*:*:*7.4.3 fix_pack_2VulnerableIBM
cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.4.3:fix_pack_3:*:*:*:*:*:*7.4.3 fix_pack_3VulnerableIBM
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*not specified by NVDRunning onLinux
  • cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.4.3:-:*:*:*:*:*:* Versions 7.4.3 Vulnerable ·IBM
  • cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.4.3:fix_pack_1:*:*:*:*:*:* Versions 7.4.3 fix_pack_1 Vulnerable ·IBM
  • cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.4.3:fix_pack_2:*:*:*:*:*:* Versions 7.4.3 fix_pack_2 Vulnerable ·IBM
  • cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.4.3:fix_pack_3:*:*:*:*:*:* Versions 7.4.3 fix_pack_3 Vulnerable ·IBM
  • cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Linux

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-20399
  2. 2026-10-03 Alias added: GHSA-3gg6-gcfv-5r7j

References

Patch 1

  • TI-2014-05975 GNU Bash through 4.3 bash43-025 processes trailing strings after certain malformed… KEVCVSS 3.1CRITICAL 9.8
  • TI-2014-05157 GNU Bash through 4.3 processes trailing strings after function definitions in the values… KEVCVSS 3.1CRITICAL 9.8
  • TI-2020-03687 Deserialization of untrusted data in IBM QRadar SIEM CVSS 3.1HIGH 8.8
  • TI-2020-04118 Deserialization of untrusted data in IBM QRadar SIEM CVSS 3.1HIGH 8.8
  • TI-2018-01304 Improper authentication in IBM Security QRadar SIEM CVSS 3.0HIGH 8.8
  • TI-2018-01442 Information disclosure in IBM QRadar SIEM CVSS 3.0MEDIUM 5.8
See all 191 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences