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Critical severity9.1NVD Advisory· Published Jul 27, 2021· Updated Jun 17, 2026

CVE-2021-20399

CVE-2021-20399

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.

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Affected products

2
  • IBM/QRadar SIEMllm-fuzzy2 versions
    7.3.0 to 7.3.3 Patch 8 and 7.4.0 to 7.4.3 GA+ 1 more
    • (no CPE)range: 7.3.0 to 7.3.3 Patch 8 and 7.4.0 to 7.4.3 GA
    • (no CPE)range: 7.3.0

Patches

Vulnerability mechanics

References

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