{"id":"CVE-2026-22535","aliases":["EUVD-2026-1194","GHSA-jj3f-4mq7-82wx"],"status":"published","title":"FRAIL SECURITY IN MQTT PROTOCOL ALLOWS AN ATTACKER MODIFY CRITICAL PARAMETERS","description":"An attacker with the ability to interact through the network and with access credentials, could, thanks to the unsecured (unencrypted) MQTT communications protocol, write on the server topics of the board that controls the MQTT communications","severity":{"version":"4.0","score":8.9,"vector":"CVSS:4.0/AV:A/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00148,"percentile":0.04056,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-1366"],"published":"2026-01-07T16:37:18Z","modified":"2026-06-17T10:20:02Z","products":[{"vendor":"efacec","product":"qc 60/90/120"}],"references":[{"url":"https://cds.thalesgroup.com/en"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-22535"},{"url":"https://github.com/advisories/GHSA-jj3f-4mq7-82wx"}],"sources":{"cve":[{"id":"CVE-2026-22535","title":"FRAIL SECURITY IN MQTT PROTOCOL ALLOWS AN ATTACKER MODIFY CRITICAL PARAMETERS","description":"An attacker with the ability to interact through the network and with access credentials, could, thanks to the unsecured (unencrypted) MQTT communications protocol, write on the server topics of the board that controls the MQTT communications","status":"published","published":"2026-01-07T16:37:18.042Z","modified":"2026-01-07T16:59:20.174Z","cvss":[{"version":"4.0","score":8.9,"vector":"CVSS:4.0/AV:A/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","level":"high","assessor":"cna"}],"cwes":["CWE-1366"],"updated_at":"2026-11-02T13:39:16.730222Z"}],"euvd":[{"id":"EUVD-2026-1194","description":"An attacker with the ability to interact through the network and with access credentials, could, thanks to the unsecured (unencrypted) MQTT communications protocol, write on the server topics of the board that controls the MQTT communications","status":"published","published":"2026-01-07T16:37:18Z","modified":"2026-01-07T16:59:20Z","cvss":[{"version":"4.0","score":8.9,"vector":"CVSS:4.0/AV:A/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","level":"high"}],"updated_at":"2026-11-02T19:48:55.108559Z"}],"ghsa":[{"id":"GHSA-jj3f-4mq7-82wx","title":"An attacker with the ability to interact through the network and with access credentials, could,...","description":"An attacker with the ability to interact through the network and with access credentials, could, thanks to the unsecured (unencrypted) MQTT communications protocol, write on the server topics of the board that controls the MQTT communications","status":"published","published":"2026-01-07T18:30:26Z","modified":"2026-01-07T18:30:34Z","cvss":[{"version":"4.0","score":8.9,"vector":"CVSS:4.0/AV:A/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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":"high"}],"updated_at":"2026-11-02T15:05:31.685025Z"}],"nvd":[{"id":"CVE-2026-22535","description":"An attacker with the ability to interact through the network and with access credentials, could, thanks to the unsecured (unencrypted) MQTT communications protocol, write on the server topics of the board that controls the MQTT communications","status":"published","published":"2026-01-07T17:16:03.58Z","modified":"2026-06-17T10:20:02.803Z","cvss":[{"version":"4.0","score":8.9,"vector":"CVSS:4.0/AV:A/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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":"high","assessor":"secondary"}],"cwes":["CWE-1366"],"updated_at":"2026-11-02T14:12:03.683495Z"}]}}