{"id":"CVE-2026-21807","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-21807","generatedAt":"2026-10-28T09:27:12.821Z","title":"HCL BigFix Quantum Risk Analyzer binary lacks several critical, industry-standard hardening protections that could allow an attacker to cause a stack-based buffer overflow.","description":"HCL BigFix Quantum Risk Analyzer binary lacks several critical, industry-standard hardening protections that could allow an attacker to cause a stack-based buffer overflow.","published":"2026-08-26T23:17:13.000Z","lastModified":"2026-08-28T16:06:43.000Z","status":"Awaiting Analysis","sourceIdentifier":"psirt@hcl.com","cvss":{"version":"3.1","score":3.9,"severity":"LOW","vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L"},"cwe":["CWE-121"],"affected":[],"epss":{"score":0.00123,"percentile":0.02037,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.12%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0133289","source":"psirt@hcl.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-21807","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}