{"id":"CVE-2018-20026","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-20026","generatedAt":"2026-10-28T20:27:53.303Z","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.","published":"2019-02-19T21:29:00.000Z","lastModified":"2026-06-17T01:52:12.000Z","status":"Modified","sourceIdentifier":"vulnerability@kaspersky.com","cvss":{"version":"3.1","score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},"cwe":[],"affected":["codesys/control for beaglebone sl","codesys/control for empc-a\\/imx6 sl","codesys/control for iot2000 sl","codesys/control for linux sl","codesys/control for pfc100 sl","codesys/control for pfc200 sl","codesys/control for raspberry pi sl","codesys/control rte sl","codesys/control rte sl \\(for beckhoff cx\\)","codesys/control runtime toolkit","codesys/control win sl","codesys/development system v3","codesys/gateway","codesys/hmi sl","codesys/opc server","codesys/plchandler","codesys/safety sil2","codesys/targetvisu sl"],"epss":{"score":0.03042,"percentile":0.87458,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (3.04%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"http://www.securityfocus.com/bid/106251","tags":["Broken Link","Third Party Advisory","VDB Entry"],"source":"vulnerability@kaspersky.com"},{"url":"https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-036-codesys-control-v3-improper-communication-address-filtering/","tags":["Mitigation","Third Party Advisory"],"source":"vulnerability@kaspersky.com"},{"url":"https://ics-cert.us-cert.gov/advisories/ICSA-18-352-04","tags":["Third Party Advisory","US Government Resource"],"source":"vulnerability@kaspersky.com"},{"url":"http://www.securityfocus.com/bid/106251","tags":["Broken Link","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-036-codesys-control-v3-improper-communication-address-filtering/","tags":["Mitigation","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://ics-cert.us-cert.gov/advisories/ICSA-18-352-04","tags":["Third Party Advisory","US Government Resource"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-20026","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}