{"id":"CVE-2026-21662","aliases":["EUVD-2026-51588","GHSA-9m8h-rcg4-v896"],"status":"published","title":"FMS Employee Allows Upload of Unrestricted Files","description":"Unrestricted upload of file with dangerous type vulnerability in Johnson Controls FM Systems Employee allows Using Malicious Files.\n\nThis issue affects FM Systems Employee: before 2025.3.1.","severity":{"version":"4.0","score":4.8,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00504,"percentile":0.4358,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-434"],"published":"2026-07-31T17:30:41Z","modified":"2026-10-23T23:10:00Z","products":[{"vendor":"johnson controls","product":"fm systems employee"},{"vendor":"johnsoncontrols","product":"fms_employee"}],"references":[{"url":"https://www.johnsoncontrols.com/trust-center/cybersecurity/security-advisories","tags":["Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-21662"},{"url":"https://github.com/advisories/GHSA-9m8h-rcg4-v896"}],"sources":{"cve":[{"id":"CVE-2026-21662","title":"FMS Employee Allows Upload of Unrestricted Files","description":"Unrestricted upload of file with dangerous type vulnerability in Johnson Controls FM Systems Employee allows Using Malicious Files.\n\nThis issue affects FM Systems Employee: before 2025.3.1.","status":"published","published":"2026-07-31T17:30:41.561Z","modified":"2026-07-31T18:24:41.723Z","cvss":[{"version":"4.0","score":4.8,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T13:41:42.05254Z"}],"euvd":[{"id":"EUVD-2026-51588","description":"Unrestricted upload of file with dangerous type vulnerability in Johnson Controls FM Systems Employee allows Using Malicious Files.\n\nThis issue affects FM Systems Employee: before 2025.3.1.","status":"published","published":"2026-07-31T17:30:41Z","modified":"2026-07-31T18:24:41Z","cvss":[{"version":"4.0","score":4.8,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T18:02:25.522444Z"}],"ghsa":[{"id":"GHSA-9m8h-rcg4-v896","title":"Unrestricted upload of file with dangerous type vulnerability in Johnson Controls FM Systems...","description":"Unrestricted upload of file with dangerous type vulnerability in Johnson Controls FM Systems Employee allows Using Malicious Files.\n\nThis issue affects FM Systems Employee: before 2025.3.1.","status":"published","published":"2026-07-31T18:32:18Z","modified":"2026-08-10T21:31:57Z","cvss":[{"version":"4.0","score":4.8,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T15:10:15.841734Z"}],"nvd":[{"id":"CVE-2026-21662","description":"Unrestricted upload of file with dangerous type vulnerability in Johnson Controls FM Systems Employee allows Using Malicious Files.\n\nThis issue affects FM Systems Employee: before 2025.3.1.","status":"published","published":"2026-07-31T18:17:13.65Z","modified":"2026-10-23T23:10:00.157Z","cvss":[{"version":"4.0","score":4.8,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T14:12:34.290716Z"}]}}