{"id":"CVE-2020-6984","aliases":["EUVD-2020-28124","GHSA-f7cx-mjqx-2qmw"],"status":"published","title":"Rockwell Automation MicroLogix 1400 Controllers Series B v21.001 and prior, Series A, all...","description":"Rockwell Automation MicroLogix 1400 Controllers Series B v21.001 and prior, Series A, all versions, MicroLogix 1100 Controller, all versions, RSLogix 500 Software v12.001 and prior, The cryptographic function utilized to protect the password in MicroLogix is discoverable.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.03877,"percentile":0.903,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-327"],"published":"2020-03-16T15:41:13Z","modified":"2026-06-17T03:24:03Z","products":[{"vendor":"rockwellautomation","product":"micrologix_1100_firmware"},{"vendor":"rockwellautomation","product":"micrologix_1400_a_firmware"},{"vendor":"rockwellautomation","product":"micrologix_1400_b_firmware"},{"vendor":"rockwellautomation","product":"rslogix_500"}],"references":[{"url":"https://www.us-cert.gov/ics/advisories/icsa-20-070-06","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-6984"},{"url":"https://github.com/advisories/GHSA-f7cx-mjqx-2qmw"}],"sources":{"cve":[{"id":"CVE-2020-6984","description":"Rockwell Automation MicroLogix 1400 Controllers Series B v21.001 and prior, Series A, all versions, MicroLogix 1100 Controller, all versions, RSLogix 500 Software v12.001 and prior, The cryptographic function utilized to protect the password in MicroLogix is discoverable.","status":"published","published":"2020-03-16T15:41:13Z","modified":"2026-06-03T13:22:52.674Z","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-327","CWE-327"],"updated_at":"2026-11-02T14:35:52.592504Z"}],"euvd":[{"id":"EUVD-2020-28124","description":"Rockwell Automation MicroLogix 1400 Controllers Series B v21.001 and prior, Series A, all versions, MicroLogix 1100 Controller, all versions, RSLogix 500 Software v12.001 and prior, The cryptographic function utilized to protect the password in MicroLogix is discoverable.","status":"published","published":"2020-03-16T15:41:13Z","modified":"2026-06-03T13:22:52Z","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":"2026-11-02T18:20:54.727632Z"}],"ghsa":[{"id":"GHSA-f7cx-mjqx-2qmw","title":"Rockwell Automation MicroLogix 1400 Controllers Series B v21.001 and prior, Series A, all...","description":"Rockwell Automation MicroLogix 1400 Controllers Series B v21.001 and prior, Series A, all versions, MicroLogix 1100 Controller, all versions, RSLogix 500 Software v12.001 and prior, The cryptographic function utilized to protect the password in MicroLogix is discoverable.","status":"published","published":"2022-05-24T17:11:39Z","modified":"2026-06-03T15:30:33Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"cwes":["CWE-327"],"updated_at":"2026-11-02T15:08:30.717444Z"}],"nvd":[{"id":"CVE-2020-6984","description":"Rockwell Automation MicroLogix 1400 Controllers Series B v21.001 and prior, Series A, all versions, MicroLogix 1100 Controller, all versions, RSLogix 500 Software v12.001 and prior, The cryptographic function utilized to protect the password in MicroLogix is discoverable.","status":"published","published":"2020-03-16T16:15:14.67Z","modified":"2026-06-17T03:24:03.85Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","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":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-327"],"updated_at":"2026-11-02T14:05:56.580228Z"}]}}