CVE-2026-21840

{"id": "CVE-2026-21840", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-21840", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-07-15T12:45:19.795768Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "psirt@hcl.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 3.1, "attackVector": "NETWORK", "baseSeverity": "LOW", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}, "impactScore": 1.4, "exploitabilityScore": 1.6}]}, "affected": [{"source": "psirt@hcl.com", "affectedData": [{"vendor": "HCLSoftware", "product": "HCL BigFix Platform", "versions": [{"status": "affected", "version": "10.0.0 - 10.0.15, 11.0.0 - 11.0.5"}], "defaultStatus": "unaffected"}]}], "published": "2026-07-14T22:16:52.527", "references": [{"url": "https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0132093", "source": "psirt@hcl.com"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "psirt@hcl.com", "description": [{"lang": "en", "value": "CWE-208"}]}], "descriptions": [{"lang": "en", "value": "HCL BigFix Platform is affected by a user enumeration vulnerability which might allow an attacker, through careful system control and response time monitoring, to perform some level of user enumeration for the BigFix service."}], "lastModified": "2026-07-15T20:08:02.787", "sourceIdentifier": "psirt@hcl.com"}