{"id":"CVE-2026-21809","aliases":["EUVD-2026-66757","GHSA-5frw-h466-x38v"],"status":"published","title":"HCL BigFix Quantum Risk Analyzer is affected by generating error messages with sensitive information","description":"HCL BigFix Quantum Risk Analyzer has a certain validation process that provides overly descriptive error messages when it encounters malformed input which can allow an attacker to conduct more efficient reconnaissance and fine-tune automated fuzzing tools to produce valid input.","severity":{"version":"3.1","score":3.9,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00123,"percentile":0.02113,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-209"],"published":"2026-08-26T21:05:16Z","modified":"2026-08-28T16:06:43Z","products":[{"vendor":"hclsoftware","product":"bigfix quantum risk analyzer"}],"references":[{"url":"https://support.hcl-software.com/csm?id=kb_article\u0026sysparm_article=KB0133289"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-21809"},{"url":"https://github.com/advisories/GHSA-5frw-h466-x38v"}],"sources":{"cve":[{"id":"CVE-2026-21809","title":"HCL BigFix Quantum Risk Analyzer is affected by generating error messages with sensitive information","description":"HCL BigFix Quantum Risk Analyzer has a certain validation process that provides overly descriptive error messages when it encounters malformed input which can allow an attacker to conduct more efficient reconnaissance and fine-tune automated fuzzing tools to produce valid input.","status":"published","published":"2026-08-26T21:05:16.937Z","modified":"2026-08-27T16:08:43.613Z","cvss":[{"version":"3.1","score":3.9,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L","level":"low","assessor":"cna"}],"cwes":["CWE-209"],"updated_at":"2026-11-02T13:41:53.237769Z"}],"euvd":[{"id":"EUVD-2026-66757","description":"HCL BigFix Quantum Risk Analyzer has a certain validation process that provides overly descriptive error messages when it encounters malformed input which can allow an attacker to conduct more efficient reconnaissance and fine-tune automated fuzzing tools to produce valid input.","status":"published","published":"2026-08-26T21:05:16Z","modified":"2026-08-27T16:08:43Z","cvss":[{"version":"3.1","score":3.9,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L","level":"low"}],"updated_at":"2026-11-02T18:01:27.663452Z"}],"ghsa":[{"id":"GHSA-5frw-h466-x38v","title":"HCL BigFix Quantum Risk Analyzer has a certain validation process that provides overly...","description":"HCL BigFix Quantum Risk Analyzer has a certain validation process that provides overly descriptive error messages when it encounters malformed input which can allow an attacker to conduct more efficient reconnaissance and fine-tune automated fuzzing tools to produce valid input.","status":"published","published":"2026-08-27T00:30:28Z","modified":"2026-08-27T00:30:35Z","cvss":[{"version":"3.1","score":3.9,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L","level":"low"}],"cwes":["CWE-209"],"updated_at":"2026-11-02T15:11:02.000078Z"}],"nvd":[{"id":"CVE-2026-21809","description":"HCL BigFix Quantum Risk Analyzer has a certain validation process that provides overly descriptive error messages when it encounters malformed input which can allow an attacker to conduct more efficient reconnaissance and fine-tune automated fuzzing tools to produce valid input.","status":"published","published":"2026-08-26T22:16:23.323Z","modified":"2026-08-28T16:06:43.297Z","cvss":[{"version":"3.1","score":3.9,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L","level":"low","assessor":"secondary"}],"cwes":["CWE-209"],"updated_at":"2026-11-02T14:12:41.66469Z"}]}}