{"id":"CVE-2021-20400","aliases":["EUVD-2021-7818","GHSA-6fqj-w26x-q42v"],"status":"published","title":"IBM QRadar SIEM 7.3 and 7.4 uses weaker than expected cryptographic algorithms that could allow...","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.","severity":{"version":"3.0","score":5.9,"vector":"CVSS:3.0/PR:N/AC:H/I:N/C:H/A:N/AV:N/UI:N/S:U/RL:O/E:U/RC:C","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00687,"percentile":0.53138,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-326"],"published":"2021-12-01T17:05:20Z","modified":"2026-06-17T03:33:47Z","products":[{"vendor":"ibm","product":"qradar siem"},{"vendor":"ibm","product":"qradar_security_information_and_event_manager"}],"references":[{"url":"https://www.ibm.com/support/pages/node/6520488","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/196074","tags":["vdb-entry","x_refsource_XF","x_transferred","VDB Entry","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-20400"},{"url":"https://github.com/advisories/GHSA-6fqj-w26x-q42v"}],"sources":{"cve":[{"id":"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.","status":"published","published":"2021-12-01T17:05:20.463Z","modified":"2024-09-16T22:36:20.116Z","cvss":[{"version":"3.0","score":5.9,"vector":"CVSS:3.0/PR:N/AC:H/I:N/C:H/A:N/AV:N/UI:N/S:U/RL:O/E:U/RC:C","level":"medium","assessor":"cna"}],"updated_at":"2026-11-02T14:32:55.19484Z"}],"euvd":[{"id":"EUVD-2021-7818","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.","status":"published","published":"2021-12-01T17:05:20Z","modified":"2024-09-16T22:36:20Z","cvss":[{"version":"3.0","score":5.9,"vector":"CVSS:3.0/PR:N/AC:H/I:N/C:H/A:N/AV:N/UI:N/S:U/RL:O/E:U/RC:C","level":"medium"}],"updated_at":"2026-11-03T00:55:01.59966Z"}],"ghsa":[{"id":"GHSA-6fqj-w26x-q42v","title":"IBM QRadar SIEM 7.3 and 7.4 uses weaker than expected cryptographic algorithms that could allow...","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.","status":"published","published":"2021-12-02T00:00:37Z","modified":"2023-02-01T05:06:26Z","cwes":["CWE-326"],"updated_at":"2026-11-02T14:50:21.264393Z"}],"nvd":[{"id":"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.","status":"published","published":"2021-12-01T17:15:07.387Z","modified":"2026-06-17T03:33:47.57Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary"},{"version":"3.0","score":5.9,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-326"],"updated_at":"2026-11-02T14:07:01.811115Z"}]}}