{"id":"CVE-2020-28214","aliases":["EUVD-2020-20698","GHSA-w259-g563-xw2j"],"status":"published","title":"A CWE-760: Use of a One-Way Hash with a Predictable Salt vulnerability exists in Modicon M221 ...","description":"A CWE-760: Use of a One-Way Hash with a Predictable Salt vulnerability exists in Modicon M221 (all references, all versions), that could allow an attacker to pre-compute the hash value using dictionary attack technique such as rainbow tables, effectively disabling the protection that an unpredictable salt would provide.","severity":{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.00748,"percentile":0.55355,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-760"],"published":"2020-12-11T00:51:01Z","modified":"2026-06-17T03:10:12Z","products":[{"vendor":"schneider-electric","product":"modicon_m221_firmware"}],"references":[{"url":"https://www.se.com/ww/en/download/document/SEVD-2020-315-05/","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"https://us-cert.cisa.gov/ics/advisories/icsa-20-343-04","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-28214"},{"url":"https://www.se.com/ww/en/download/document/SEVD-2020-315-05"},{"url":"https://github.com/advisories/GHSA-w259-g563-xw2j"}],"sources":{"cve":[{"id":"CVE-2020-28214","description":"A CWE-760: Use of a One-Way Hash with a Predictable Salt vulnerability exists in Modicon M221 (all references, all versions), that could allow an attacker to pre-compute the hash value using dictionary attack technique such as rainbow tables, effectively disabling the protection that an unpredictable salt would provide.","status":"published","published":"2020-12-11T00:51:01Z","modified":"2026-05-28T20:12:55.037Z","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":"adp"}],"cwes":["CWE-760"],"updated_at":"2026-11-02T14:35:57.017407Z"}],"euvd":[{"id":"EUVD-2020-20698","description":"A CWE-760: Use of a One-Way Hash with a Predictable Salt vulnerability exists in Modicon M221 (all references, all versions), that could allow an attacker to pre-compute the hash value using dictionary attack technique such as rainbow tables, effectively disabling the protection that an unpredictable salt would provide.","status":"published","published":"2020-12-11T00:51:01Z","modified":"2026-05-28T20:12:55Z","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"}],"updated_at":"2026-11-02T18:21:01.680356Z"}],"ghsa":[{"id":"GHSA-w259-g563-xw2j","title":"A CWE-760: Use of a One-Way Hash with a Predictable Salt vulnerability exists in Modicon M221 ...","description":"A CWE-760: Use of a One-Way Hash with a Predictable Salt vulnerability exists in Modicon M221 (all references, all versions), that could allow an attacker to pre-compute the hash value using dictionary attack technique such as rainbow tables, effectively disabling the protection that an unpredictable salt would provide.","status":"published","published":"2022-05-24T17:36:04Z","modified":"2026-05-28T21:33:04Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-760"],"updated_at":"2026-11-02T15:08:22.24664Z"}],"nvd":[{"id":"CVE-2020-28214","description":"A CWE-760: Use of a One-Way Hash with a Predictable Salt vulnerability exists in Modicon M221 (all references, all versions), that could allow an attacker to pre-compute the hash value using dictionary attack technique such as rainbow tables, effectively disabling the protection that an unpredictable salt would provide.","status":"published","published":"2020-12-11T01:15:11.407Z","modified":"2026-06-17T03:10:12.9Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"},{"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":"secondary"},{"version":"2.0","score":2.1,"vector":"AV:L/AC:L/Au:N/C:P/I:N/A:N","level":"low","assessor":"primary"}],"cwes":["CWE-760"],"updated_at":"2026-11-02T14:06:27.10541Z"}]}}