{"id":"CVE-2020-7502","aliases":["EUVD-2020-28627","GHSA-x4fw-v2f8-f3pj"],"status":"published","title":"A CWE-787: Out-of-bounds Write vulnerability exists in Modicon M218 Logic Controller (Firmware...","description":"A CWE-787: Out-of-bounds Write vulnerability exists in Modicon M218 Logic Controller (Firmware version 4.3 and prior), which may cause a Denial of Service when specific TCP/IP crafted packets are sent to the Modicon M218 Logic Controller.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01563,"percentile":0.75457,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2020-06-16T19:41:18Z","modified":"2026-06-17T03:24:54Z","products":[{"vendor":"schneider-electric","product":"modicon_m218_firmware"}],"references":[{"url":"https://www.se.com/ww/en/download/document/SEVD-2020-161-01","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-7502"},{"url":"https://github.com/advisories/GHSA-x4fw-v2f8-f3pj"}],"sources":{"cve":[{"id":"CVE-2020-7502","description":"A CWE-787: Out-of-bounds Write vulnerability exists in Modicon M218 Logic Controller (Firmware version 4.3 and prior), which may cause a Denial of Service when specific TCP/IP crafted packets are sent to the Modicon M218 Logic Controller.","status":"published","published":"2020-06-16T19:41:18Z","modified":"2024-08-04T09:33:19.594Z","cwes":["CWE-787"],"updated_at":"2026-11-02T14:35:58.331892Z"}],"euvd":[{"id":"EUVD-2020-28627","description":"A CWE-787: Out-of-bounds Write vulnerability exists in Modicon M218 Logic Controller (Firmware version 4.3 and prior), which may cause a Denial of Service when specific TCP/IP crafted packets are sent to the Modicon M218 Logic Controller.","status":"published","published":"2020-06-16T19:41:18Z","modified":"2024-08-04T09:33:19Z","updated_at":"2026-11-03T03:07:59.603443Z"}],"ghsa":[{"id":"GHSA-x4fw-v2f8-f3pj","title":"A CWE-787: Out-of-bounds Write vulnerability exists in Modicon M218 Logic Controller (Firmware...","description":"A CWE-787: Out-of-bounds Write vulnerability exists in Modicon M218 Logic Controller (Firmware version 4.3 and prior), which may cause a Denial of Service when specific TCP/IP crafted packets are sent to the Modicon M218 Logic Controller.","status":"published","published":"2022-05-24T17:20:39Z","modified":"2023-01-29T05:02:52Z","cwes":["CWE-787"],"updated_at":"2026-11-02T14:45:11.402148Z"}],"nvd":[{"id":"CVE-2020-7502","description":"A CWE-787: Out-of-bounds Write vulnerability exists in Modicon M218 Logic Controller (Firmware version 4.3 and prior), which may cause a Denial of Service when specific TCP/IP crafted packets are sent to the Modicon M218 Logic Controller.","status":"published","published":"2020-06-16T20:15:15.05Z","modified":"2026-06-17T03:24:54.283Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:06:07.249892Z"}]}}