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High severity7.5NVD Advisory· Published Dec 1, 2021· Updated Jun 17, 2026

CVE-2021-20400

CVE-2021-20400

Description

IBM QRadar SIEM 7.3 and 7.4 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information. IBM X-Force ID: 196074.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

17
  • IBM/Qradar Security Information And Event Manager15 versions
    cpe:2.3:a:ibm:qradar_security_information_and_event_manager:*:*:*:*:*:*:*:*+ 14 more
    • cpe:2.3:a:ibm:qradar_security_information_and_event_manager:*:*:*:*:*:*:*:*range: >=7.3.0,<7.3.3
    • cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.3.3:-:*:*:*:*:*:*
    • cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.3.3:fix_pack_1:*:*:*:*:*:*
    • cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.3.3:fix_pack_2:*:*:*:*:*:*
    • cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.3.3:fix_pack_3:*:*:*:*:*:*
    • cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.3.3:fix_pack_4:*:*:*:*:*:*
    • cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.3.3:fix_pack_5:*:*:*:*:*:*
    • cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.3.3:fix_pack_6:*:*:*:*:*:*
    • cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.3.3:fix_pack_7:*:*:*:*:*:*
    • cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.3.3:fix_pack_8:*:*:*:*:*:*
    • cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.3.3:fix_pack_9:*:*:*:*:*:*
    • cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.4.3:-:*:*:*:*:*:*
    • cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.4.3:fix_pack_1:*:*:*:*:*:*
    • cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.4.3:fix_pack_2:*:*:*:*:*:*
    • cpe:2.3:a:ibm:qradar_security_information_and_event_manager:7.4.3:fix_pack_3:*:*:*:*:*:*
  • IBM/QRadar SIEMllm-fuzzy2 versions
    7.3, 7.4+ 1 more
    • (no CPE)range: 7.3, 7.4
    • (no CPE)range: 7.3

Patches

Vulnerability mechanics

References

2

News mentions

0

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