{"cve":"CVE-2019-18858","nvd":{"published":"2019-11-20T18:15:10.917","modified":"2026-06-17T02:25:29.023","status":"Modified","description":"CODESYS 3 web server before 3.5.15.20, as distributed with CODESYS Control runtime systems, has a Buffer Overflow.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-120"],"references":["https://customers.codesys.com/fileadmin/data/customers/security/2019/Advisory2019-10_CDS-68341.pdf","https://www.tenable.com/security/research/tra-2019-48","https://customers.codesys.com/fileadmin/data/customers/security/2019/Advisory2019-10_CDS-68341.pdf","https://www.tenable.com/security/research/tra-2019-48"],"products":["codesys:control_for_beaglebone","codesys:control_for_empc-a\\/imx6","codesys:control_for_iot2000","codesys:control_for_linux","codesys:control_for_pfc100","codesys:control_for_pfc200","codesys:control_for_plcnext","codesys:control_for_raspberry_pi","codesys:control_rte","codesys:control_runtime_system_toolkit","codesys:control_win","codesys:embedded_target_visu_toolkit","codesys:hmi","codesys:remote_target_visu_toolkit"],"source":"nvd","synced_at":"2026-10-19T20:59:25.448946135+00:00"},"epss":{"cve":"CVE-2019-18858","score":0.02331,"percentile":0.83547,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}