{"id":"CVE-2025-41700","aliases":["EUVD-2025-199974","GHSA-cx2q-9f4q-7mgw"],"status":"published","title":"CODESYS Development System - Deserialization of Untrusted Data","description":"An unauthenticated attacker can trick a local user into executing arbitrary code by opening a deliberately manipulated CODESYS project file with a CODESYS development system. This arbitrary code is executed in the user context.","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/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":0.00166,"percentile":0.05872,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-502"],"published":"2025-12-01T10:02:47Z","modified":"2026-10-18T20:10:00Z","products":[{"vendor":"codesys","product":"codesys"},{"vendor":"codesys","product":"codesys development system"}],"references":[{"url":"https://certvde.com/de/advisories/VDE-2025-101","tags":["Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-41700"},{"url":"https://github.com/advisories/GHSA-cx2q-9f4q-7mgw"}],"sources":{"cve":[{"id":"CVE-2025-41700","title":"CODESYS Development System - Deserialization of Untrusted Data","description":"An unauthenticated attacker can trick a local user into executing arbitrary code by opening a deliberately manipulated CODESYS project file with a CODESYS development system. This arbitrary code is executed in the user context.","status":"published","published":"2025-12-01T10:02:47.312Z","modified":"2025-12-01T13:59:26.31Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:32:31.631102Z"}],"euvd":[{"id":"EUVD-2025-199974","description":"An unauthenticated attacker can trick a local user into executing arbitrary code by opening a deliberately manipulated CODESYS project file with a CODESYS development system. This arbitrary code is executed in the user context.","status":"published","published":"2025-12-01T10:02:47Z","modified":"2025-12-01T13:59:26Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T19:49:11.947161Z"}],"ghsa":[{"id":"GHSA-cx2q-9f4q-7mgw","title":"An unauthenticated attacker can trick a local user into executing arbitrary code by opening a...","description":"An unauthenticated attacker can trick a local user into executing arbitrary code by opening a deliberately manipulated CODESYS project file with a CODESYS development system. This arbitrary code is executed in the user context.","status":"published","published":"2025-12-01T12:30:28Z","modified":"2025-12-01T12:30:34Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T15:04:59.670278Z"}],"nvd":[{"id":"CVE-2025-41700","description":"An unauthenticated attacker can trick a local user into executing arbitrary code by opening a deliberately manipulated CODESYS project file with a CODESYS development system. This arbitrary code is executed in the user context.","status":"published","published":"2025-12-01T10:16:00.44Z","modified":"2026-10-18T20:10:00.11Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:11:46.94029Z"}]}}