{"id":"CVE-2021-29239","aliases":["EUVD-2021-15878","GHSA-65fv-prgh-wg7w"],"status":"published","title":"CODESYS Development System 3 before 3.5.17.0 displays or executes malicious documents or files...","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.","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.00179,"percentile":0.07527,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-345"],"published":"2021-05-03T13:43:48Z","modified":"2026-06-17T03:47:25Z","products":[{"vendor":"codesys","product":"development_system"}],"references":[{"url":"https://customers.codesys.com/index.php","tags":["x_refsource_MISC","x_transferred","Permissions Required","Vendor Advisory"]},{"url":"https://www.codesys.com/security/security-reports.html","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://customers.codesys.com/index.php?eID=dumpFile\u0026t=f\u0026f=14639\u0026token=fa836f8bd4a2184aa9323a639ca9f2aaf1538412\u0026download=","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-29239"},{"url":"https://github.com/advisories/GHSA-65fv-prgh-wg7w"}],"sources":{"cve":[{"id":"CVE-2021-29239","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.","status":"published","published":"2021-05-03T13:43:48Z","modified":"2024-08-03T22:02:51.352Z","updated_at":"2026-11-02T14:33:06.32268Z"}],"euvd":[{"id":"EUVD-2021-15878","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.","status":"published","published":"2021-05-03T13:43:48Z","modified":"2024-08-03T22:02:51Z","updated_at":"2026-11-03T03:24:45.000012Z"}],"ghsa":[{"id":"GHSA-65fv-prgh-wg7w","title":"CODESYS Development System 3 before 3.5.17.0 displays or executes malicious documents or files...","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.","status":"published","published":"2022-05-24T17:49:24Z","modified":"2023-01-29T05:06:09Z","cwes":["CWE-345"],"updated_at":"2026-11-02T14:45:57.703827Z"}],"nvd":[{"id":"CVE-2021-29239","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.","status":"published","published":"2021-05-03T14:15:07.6Z","modified":"2026-06-17T03:47:25.727Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":4.6,"vector":"AV:L/AC:L/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-345"],"updated_at":"2026-11-02T14:06:52.81233Z"}]}}