{"id":"CVE-2021-29241","aliases":["EUVD-2021-15880","GHSA-2hc4-qjj9-7p6r"],"status":"published","title":"CODESYS Gateway 3 before 3.5.17.0 has a NULL pointer dereference that may result in a denial of...","description":"CODESYS Gateway 3 before 3.5.16.70 has a NULL pointer dereference that may result in a denial of service (DoS).","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.017,"percentile":0.77402,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-476"],"published":"2021-05-03T13:17:03Z","modified":"2026-06-17T03:47:25Z","products":[{"vendor":"codesys","product":"control_for_beaglebone_sl"},{"vendor":"codesys","product":"control_for_empc-a\\/imx6_sl"},{"vendor":"codesys","product":"control_for_iot2000_sl"},{"vendor":"codesys","product":"control_for_linux_sl"},{"vendor":"codesys","product":"control_for_pfc100_sl"},{"vendor":"codesys","product":"control_for_pfc200_sl"},{"vendor":"codesys","product":"control_for_raspberry_pi_sl"},{"vendor":"codesys","product":"control_runtime_system_toolkit"},{"vendor":"codesys","product":"development_system"},{"vendor":"codesys","product":"edge_gateway"},{"vendor":"codesys","product":"gateway"}],"references":[{"url":"https://customers.codesys.com/index.php","tags":["x_refsource_MISC","x_transferred","Permissions Required","Vendor Advisory"]},{"url":"https://customers.codesys.com/index.php?eID=dumpFile\u0026t=f\u0026f=14637\u0026token=8dbd75ae7553ae3be25e22f741db783b31e14799\u0026download=","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://www.codesys.com/security/security-reports.html","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-29241"},{"url":"https://github.com/advisories/GHSA-2hc4-qjj9-7p6r"}],"sources":{"cve":[{"id":"CVE-2021-29241","description":"CODESYS Gateway 3 before 3.5.16.70 has a NULL pointer dereference that may result in a denial of service (DoS).","status":"published","published":"2021-05-03T13:17:03Z","modified":"2026-05-29T14:01:18.048Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:33:06.658806Z"}],"euvd":[{"id":"EUVD-2021-15880","description":"CODESYS Gateway 3 before 3.5.16.70 has a NULL pointer dereference that may result in a denial of service (DoS).","status":"published","published":"2021-05-03T13:17:03Z","modified":"2026-05-29T14:01:18Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T18:21:01.215325Z"}],"ghsa":[{"id":"GHSA-2hc4-qjj9-7p6r","title":"CODESYS Gateway 3 before 3.5.17.0 has a NULL pointer dereference that may result in a denial of...","description":"CODESYS Gateway 3 before 3.5.17.0 has a NULL pointer dereference that may result in a denial of service (DoS).","status":"published","published":"2022-05-24T17:49:24Z","modified":"2023-01-29T05:06:33Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:46:03.455343Z"}],"nvd":[{"id":"CVE-2021-29241","description":"CODESYS Gateway 3 before 3.5.16.70 has a NULL pointer dereference that may result in a denial of service (DoS).","status":"published","published":"2021-05-03T14:15:07.633Z","modified":"2026-06-17T03:47:25.953Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:06:52.81233Z"}]}}