{"id":"CVE-2023-3663","aliases":["EUVD-2023-44307","GHSA-c86m-wfx2-qmx9"],"status":"published","title":"CODESYS: Missing integrity check in CODESYS Development System","description":"In CODESYS Development System versions from 3.5.11.20 and before 3.5.19.20 a missing integrity check might allow an unauthenticated remote attacker to manipulate the content of notifications received via HTTP by the CODESYS notification server.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.01021,"percentile":0.63653,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-345","CWE-940"],"published":"2023-08-03T10:55:08Z","modified":"2026-06-17T06:14:34Z","products":[{"vendor":"codesys","product":"codesys development system"},{"vendor":"codesys","product":"development_system"}],"references":[{"url":"https://cert.vde.com/en/advisories/VDE-2023-022/","tags":["x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-3663"},{"url":"https://cert.vde.com/en/advisories/VDE-2023-022"},{"url":"https://github.com/advisories/GHSA-c86m-wfx2-qmx9"}],"sources":{"cve":[{"id":"CVE-2023-3663","title":"CODESYS: Missing integrity check in CODESYS Development System","description":"In CODESYS Development System versions from 3.5.11.20 and before 3.5.19.20 a missing integrity check might allow an unauthenticated remote attacker to manipulate the content of notifications received via HTTP by the CODESYS notification server.","status":"published","published":"2023-08-03T10:55:08.945Z","modified":"2025-02-27T21:11:34.7Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-940"],"updated_at":"2026-11-02T14:35:24.360381Z"}],"euvd":[{"id":"EUVD-2023-44307","description":"In CODESYS Development System versions from 3.5.11.20 and before 3.5.19.20 a missing integrity check might allow an unauthenticated remote attacker to manipulate the content of notifications received via HTTP by the CODESYS notification server.","status":"published","published":"2023-08-03T10:55:08Z","modified":"2025-02-27T21:11:34Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T20:53:20.548403Z"}],"ghsa":[{"id":"GHSA-c86m-wfx2-qmx9","title":"In CODESYS Development System versions from 3.5.11.20 and before 3.5.19.20 a missing integrity...","description":"In CODESYS Development System versions from 3.5.11.20 and before 3.5.19.20 a missing integrity check might allow an unauthenticated remote attacker to manipulate the content of notifications received via HTTP by the CODESYS notification server.","status":"published","published":"2023-08-03T12:31:52Z","modified":"2024-10-02T06:31:32Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-345","CWE-940"],"updated_at":"2026-11-02T14:58:23.554604Z"}],"nvd":[{"id":"CVE-2023-3663","description":"In CODESYS Development System versions from 3.5.11.20 and before 3.5.19.20 a missing integrity check might allow an unauthenticated remote attacker to manipulate the content of notifications received via HTTP by the CODESYS notification server.","status":"published","published":"2023-08-03T11:15:10.077Z","modified":"2026-06-17T06:14:34.527Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-940"],"updated_at":"2026-11-02T14:08:20.798312Z"}]}}