{"cve":"CVE-2021-29239","nvd":{"published":"2021-05-03T14:15:07.600","modified":"2026-06-17T03:47:25.727","status":"Modified","description":"CODESYS Development System 3 before 3.5.17.0 displays or executes malicious documents or files embedded in libraries without first checking their validity.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":["CWE-345"],"references":["https://customers.codesys.com/index.php","https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=14639&token=fa836f8bd4a2184aa9323a639ca9f2aaf1538412&download=","https://www.codesys.com/security/security-reports.html","https://customers.codesys.com/index.php","https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=14639&token=fa836f8bd4a2184aa9323a639ca9f2aaf1538412&download="],"products":["codesys:development_system"],"source":"nvd","synced_at":"2026-10-19T21:18:09.669877188+00:00"},"epss":{"cve":"CVE-2021-29239","score":0.00179,"percentile":0.0749,"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."]}