{"id":"CVE-2018-7842","aliases":["EUVD-2018-19554","GHSA-36fw-7hg5-xv5p"],"status":"published","title":"A CWE-290: Authentication Bypass by Spoofing vulnerability exists in all versions of the Modicon...","description":"A CWE-290: Authentication Bypass by Spoofing vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause an elevation of privilege by conducting a brute force attack on Modbus parameters sent to the controller.","severity":{"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","from":"nvd"},"epss":{"day":"2026-11-08","score":0.35039,"percentile":0.98447,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-290"],"published":"2019-05-22T19:59:46Z","modified":"2026-06-17T02:03:50Z","exploits":[{"source":"pocgithub","id":"yanissec/CVE-2018-7842","title":"yanissec/CVE-2018-7842","date":"2023-10-17","url":"https://github.com/yanissec/CVE-2018-7842"}],"products":[{"vendor":"schneider-electric","product":"modicon_m340_firmware"},{"vendor":"schneider-electric","product":"modicon_m580_firmware"},{"vendor":"schneider-electric","product":"modicon_premium_firmware"},{"vendor":"schneider-electric","product":"modicon_quantum_firmware"}],"references":[{"url":"https://www.schneider-electric.com/en/download/document/SEVD-2019-134-11/","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0741","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-7842"},{"url":"https://github.com/advisories/GHSA-36fw-7hg5-xv5p"}],"sources":{"cve":[{"id":"CVE-2018-7842","description":"A CWE-290: Authentication Bypass by Spoofing vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause an elevation of privilege by conducting a brute force attack on Modbus parameters sent to the controller.","status":"published","published":"2019-05-22T19:59:46Z","modified":"2024-08-05T06:37:59.544Z","updated_at":"2026-11-02T14:35:09.908186Z"}],"euvd":[{"id":"EUVD-2018-19554","description":"A CWE-290: Authentication Bypass by Spoofing vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause an elevation of privilege by conducting a brute force attack on Modbus parameters sent to the controller.","status":"published","published":"2019-05-22T19:59:46Z","modified":"2024-08-05T06:37:59Z","updated_at":"2026-11-03T02:40:04.680788Z"}],"ghsa":[{"id":"GHSA-36fw-7hg5-xv5p","title":"A CWE-290: Authentication Bypass by Spoofing vulnerability exists in all versions of the Modicon...","description":"A CWE-290: Authentication Bypass by Spoofing vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause an elevation of privilege by conducting a brute force attack on Modbus parameters sent to the controller.","status":"published","published":"2022-05-24T16:46:13Z","modified":"2023-01-28T05:05:48Z","cwes":["CWE-290"],"updated_at":"2026-11-02T14:44:22.417327Z"}],"nvd":[{"id":"CVE-2018-7842","description":"A CWE-290: Authentication Bypass by Spoofing vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause an elevation of privilege by conducting a brute force attack on Modbus parameters sent to the controller.","status":"published","published":"2019-05-22T20:29:01.557Z","modified":"2026-06-17T02:03:50.717Z","cvss":[{"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"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-290"],"updated_at":"2026-11-02T14:04:57.307075Z"}]}}