{"cve":"CVE-2021-29241","nvd":{"published":"2021-05-03T14:15:07.633","modified":"2026-06-17T03:47:25.953","status":"Modified","description":"CODESYS Gateway 3 before 3.5.16.70 has a NULL pointer dereference that may result in a denial of service (DoS).","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-476"],"references":["https://customers.codesys.com/index.php","https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=14637&token=8dbd75ae7553ae3be25e22f741db783b31e14799&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=14637&token=8dbd75ae7553ae3be25e22f741db783b31e14799&download="],"products":["codesys:control_for_beaglebone_sl","codesys:control_for_empc-a\\/imx6_sl","codesys:control_for_iot2000_sl","codesys:control_for_linux_sl","codesys:control_for_pfc100_sl","codesys:control_for_pfc200_sl","codesys:control_for_raspberry_pi_sl","codesys:control_runtime_system_toolkit","codesys:development_system","codesys:edge_gateway","codesys:gateway"],"source":"nvd","synced_at":"2026-10-19T21:18:09.669877188+00:00"},"epss":{"cve":"CVE-2021-29241","score":0.01633,"percentile":0.76268,"date":"2026-11-01"},"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."]}