XML external entity injection in IBM QRadar SIEM
Priority LOW 36CWE-611Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · Low
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
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.
Why it matters now
EPSS 0.01528 74th 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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| IBM | QRadar SIEM | 7.3; 7.4 | — | No fix listed | CNA |
- QRadar SIEM VendorIBM Affected 7.3; 7.4 Fixed in — No fix listed CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.3.0:*:*:*:*:*:*:* | 7.3.0 | Vulnerable | IBM |
| cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.4.0:*:*:*:*:*:*:* | 7.4.0 | Vulnerable | IBM |
| cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Linux |
- cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.3.0:*:*:*:*:*:*:* Versions 7.3.0 Vulnerable ·IBM
- cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.4.0:*:*:*:*:*:*:* Versions 7.4.0 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
- 2026-10-02 Threatist record created from CVE-2020-4509
- 2026-10-03 Alias added: GHSA-h8c2-jx8p-hrh5
References
More IBM Qradar Security Information And Event Manager vulnerabilities
- 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
Sources
- CVE-2020-4509 · CVE Program
- CVE-2020-4509 · NVD
- FIRST EPSS
- GHSA-h8c2-jx8p-hrh5 · GitHub Advisory Database · CC BY 4.0
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