{"id":"CVE-2018-20026","aliases":["EUVD-2018-12604","GHSA-mxhm-4cg3-5h2j"],"status":"published","title":"Improper Communication Address Filtering exists in CODESYS V3 products versions prior V3.5.14.0.","description":"Improper Communication Address Filtering exists in CODESYS V3 products versions prior V3.5.14.0.","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":"2026-11-09","score":0.03353,"percentile":0.88781,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2019-02-19T21:00:00Z","modified":"2026-06-17T01:52:11Z","products":[{"vendor":"codesys","product":"control_for_beaglebone_sl"},{"vendor":"codesys","product":"control_for_empc-a\\/imx6_sl"},{"vendor":"codesys","product":"control_for_iot2000_sl"},{"vendor":"codesys","product":"control_for_linux_sl"},{"vendor":"codesys","product":"control_for_pfc100_sl"},{"vendor":"codesys","product":"control_for_pfc200_sl"},{"vendor":"codesys","product":"control_for_raspberry_pi_sl"},{"vendor":"codesys","product":"control_rte_sl"},{"vendor":"codesys","product":"control_rte_sl_\\(for_beckhoff_cx\\)"},{"vendor":"codesys","product":"control_runtime_toolkit"},{"vendor":"codesys","product":"control_win_sl"},{"vendor":"codesys","product":"development_system_v3"},{"vendor":"codesys","product":"gateway"},{"vendor":"codesys","product":"hmi_sl"},{"vendor":"codesys","product":"opc_server"},{"vendor":"codesys","product":"plchandler"},{"vendor":"codesys","product":"safety_sil2"},{"vendor":"codesys","product":"targetvisu_sl"},{"vendor":"kaspersky lab","product":"codesys v3 products"}],"references":[{"url":"http://www.securityfocus.com/bid/106251","tags":["vdb-entry","x_refsource_BID","x_transferred","Broken Link","Third Party Advisory","VDB Entry"]},{"url":"https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-036-codesys-control-v3-improper-communication-address-filtering/","tags":["x_refsource_MISC","x_transferred","Mitigation","Third Party Advisory"]},{"url":"https://ics-cert.us-cert.gov/advisories/ICSA-18-352-04","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-20026"},{"url":"https://github.com/advisories/GHSA-mxhm-4cg3-5h2j"}],"sources":{"cve":[{"id":"CVE-2018-20026","description":"Improper Communication Address Filtering exists in CODESYS V3 products versions prior V3.5.14.0.","status":"published","published":"2019-02-19T21:00:00Z","modified":"2024-09-16T20:37:39.329Z","updated_at":"2026-11-02T14:34:59.872731Z"}],"euvd":[{"id":"EUVD-2018-12604","description":"Improper Communication Address Filtering exists in CODESYS V3 products versions prior V3.5.14.0.","status":"published","published":"2019-02-19T21:00:00Z","modified":"2024-09-16T20:37:39Z","updated_at":"2026-11-03T00:55:12.113193Z"}],"ghsa":[{"id":"GHSA-mxhm-4cg3-5h2j","title":"Improper Communication Address Filtering exists in CODESYS V3 products versions prior V3.5.14.0.","description":"Improper Communication Address Filtering exists in CODESYS V3 products versions prior V3.5.14.0.","status":"published","published":"2022-05-13T01:19:51Z","modified":"2023-02-01T05:06:00Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T14:50:18.532439Z"}],"nvd":[{"id":"CVE-2018-20026","description":"Improper Communication Address Filtering exists in CODESYS V3 products versions prior V3.5.14.0.","status":"published","published":"2019-02-19T21:29:00.29Z","modified":"2026-06-17T01:52:11.86Z","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":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:04:54.21788Z"}]}}