{"id":"CVE-2017-16740","aliases":["EUVD-2017-7924","GHSA-f8m9-fwqj-74hf"],"status":"published","title":"A Buffer Overflow issue was discovered in Rockwell Automation Allen-Bradley MicroLogix 1400...","description":"A Buffer Overflow issue was discovered in Rockwell Automation Allen-Bradley MicroLogix 1400 Controllers, Series B and C Versions 21.002 and earlier. The stack-based buffer overflow vulnerability has been identified, which may allow remote code execution.","severity":{"version":"3.0","score":10,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.07204,"percentile":0.9435,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-119","CWE-120"],"published":"2018-01-09T21:00:00Z","modified":"2026-06-17T01:09:44Z","products":[{"vendor":"rockwellautomation","product":"1766-l32awa_firmware"},{"vendor":"rockwellautomation","product":"1766-l32awaa_firmware"},{"vendor":"rockwellautomation","product":"1766-l32bwa_firmware"},{"vendor":"rockwellautomation","product":"1766-l32bwaa_firmware"},{"vendor":"rockwellautomation","product":"1766-l32bxb_firmware"},{"vendor":"rockwellautomation","product":"1766-l32bxba_firmware"}],"references":[{"url":"http://www.securityfocus.com/bid/102474","tags":["vdb-entry","x_refsource_BID","x_transferred","Mitigation","Third Party Advisory","VDB Entry"]},{"url":"https://rockwellautomation.custhelp.com/app/answers/detail/a_id/1070883","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"https://ics-cert.us-cert.gov/advisories/ICSA-18-009-01","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2017-16740"},{"url":"https://github.com/advisories/GHSA-f8m9-fwqj-74hf"}],"sources":{"cve":[{"id":"CVE-2017-16740","description":"A Buffer Overflow issue was discovered in Rockwell Automation Allen-Bradley MicroLogix 1400 Controllers, Series B and C Versions 21.002 and earlier. The stack-based buffer overflow vulnerability has been identified, which may allow remote code execution.","status":"published","published":"2018-01-09T21:00:00Z","modified":"2024-08-05T20:35:21.014Z","cwes":["CWE-120"],"updated_at":"2026-11-02T14:33:21.142987Z"}],"euvd":[{"id":"EUVD-2017-7924","description":"A Buffer Overflow issue was discovered in Rockwell Automation Allen-Bradley MicroLogix 1400 Controllers, Series B and C Versions 21.002 and earlier. The stack-based buffer overflow vulnerability has been identified, which may allow remote code execution.","status":"published","published":"2018-01-09T21:00:00Z","modified":"2024-08-05T20:35:21Z","updated_at":"2026-11-03T02:23:11.533108Z"}],"ghsa":[{"id":"GHSA-f8m9-fwqj-74hf","title":"A Buffer Overflow issue was discovered in Rockwell Automation Allen-Bradley MicroLogix 1400...","description":"A Buffer Overflow issue was discovered in Rockwell Automation Allen-Bradley MicroLogix 1400 Controllers, Series B and C Versions 21.002 and earlier. The stack-based buffer overflow vulnerability has been identified, which may allow remote code execution.","status":"published","published":"2022-05-14T03:07:04Z","modified":"2023-02-02T05:07:13Z","cvss":[{"version":"3.0","score":10,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:52:27.395685Z"}],"nvd":[{"id":"CVE-2017-16740","description":"A Buffer Overflow issue was discovered in Rockwell Automation Allen-Bradley MicroLogix 1400 Controllers, Series B and C Versions 21.002 and earlier. The stack-based buffer overflow vulnerability has been identified, which may allow remote code execution.","status":"published","published":"2018-01-09T21:29:00.42Z","modified":"2026-06-17T01:09:44.367Z","cvss":[{"version":"3.0","score":10,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/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-120","CWE-119"],"updated_at":"2026-11-02T14:04:12.690425Z"}]}}