{"id":"CVE-2026-56590","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-56590","generatedAt":"2026-10-28T03:58:01.449Z","title":"HCL BigFix Service Management is affected by an Unrestricted File Upload vulnerability due to improper file validation controls, which could allow an unauthenticated attacker to upload and execute malicious payloads, resulting in a complete server…","description":"HCL BigFix Service Management is affected by an Unrestricted File Upload vulnerability due to improper file validation controls, which could allow an unauthenticated attacker to upload and execute malicious payloads, resulting in a complete server compromise.","published":"2026-09-18T09:16:42.000Z","lastModified":"2026-10-14T17:56:59.000Z","status":"Analyzed","sourceIdentifier":"psirt@hcl.com","cvss":{"version":"3.1","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-434"],"affected":["hcltech/bigfix service management"],"epss":{"score":0.00193,"percentile":0.08869,"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":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.19%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"scored","label":"Newly scored","at":"2026-10-14T20:00:20.000Z","detail":{"from":"6.4","score":"9.8","severity":"CRITICAL","fromSeverity":"MEDIUM"},"summary":"Now scored CVSS 9.8 CRITICAL (was 6.4)."}],"references":[{"url":"https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0133917","tags":["Vendor Advisory"],"source":"psirt@hcl.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-56590","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."}