{"schemaVersion":3,"id":"CVE-2017-7903","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"A Weak Password Requirements issue was discovered in Rockwell Automation Allen-Bradley MicroLogix 1100 programmable-logic controllers 1763-L16AWA, Series A and B, Version 16.00 and prior versions; 1763-L16BBB, Series A and B, Version 16.00 and prior versions; 1763-L16BWA, Series A and B, Version 16.00 and prior versions; and 1763-L16DWD, Series A and B, Version 16.00 and prior versions and Allen-Bradley MicroLogix 1400 programmable logic controllers 1766-L32AWA, Series A and B, Version 16.00 and prior versions; 1766-L32BWA, Series A and B, Version 16.00 and prior versions; 1766-L32BWAA, Series A and B, Version 16.00 and prior versions; 1766-L32BXB, Series A and B, Version 16.00 and prior versions; 1766-L32BXBA, Series A and B, Version 16.00 and prior versions; and 1766-L32AWAA, Series A and B, Version 16.00 and prior versions. The affected products use a numeric password with a small maximum character size for the password.","dates":{"published":"2017-06-30T02:35:00.000Z","modified":"2026-06-03T13:19:35.597Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":9.8,"severity":"critical","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":9.8,"severity":"critical","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":9.8,"severity":"critical","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.0","versionLabel":"v3.0","source":"NVD","score":9.8,"severity":"critical","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":5,"severity":"medium","vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.02759,"percentile":0.86137,"severity":"low","asOf":"2026-10-21T00:00:00.000Z","change":{"pp":0.06500000000000013,"baselineDate":"2026-09-21T00:00:00.000Z","baselineScore":0.02694},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.02759,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.02759,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.02759,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.02759,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.02759,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.02759,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.02759,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.02694,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.02759,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.02759,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.02759,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.02759,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.02759,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.02759,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.02759,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.02759,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.02759,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.02759,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.02759,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.02759,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.02759,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.02759,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.02759,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.02759,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.02759,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.02759,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.02759,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.02759,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.02759,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.02759,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.02759,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.02759,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.02759,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.02759,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.02759,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.02759,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.02759,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.02759,"percentile":0.86137}],"last30":[{"date":"2026-09-21T00:00:00.000Z","score":0.02694,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.02759,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.02759,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.02759,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.02759,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.02759,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.02759,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.02759,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.02759,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.02759,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.02759,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.02759,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.02759,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.02759,"percent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