{"id":"CVE-2026-3509","state":"PUBLISHED","title":"CODESYS Control Audit Log Format String DoS","description":"An unauthenticated remote attacker may be able to control the format string of messages processed by the Audit Log of the CODESYS Control runtime system, potentially resulting in a denial‑of‑service (DoS) condition.","publishedAt":"2026-03-24T07:42:33.820Z","updatedAt":"2026-03-26T12:35:48.666Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","source":"CERTVDE"},"assigner":"CERTVDE","products":["CODESYS CODESYS Control RTE (SL)","CODESYS CODESYS Control RTE (for Beckhoff CX) SL","CODESYS CODESYS Control Win (SL)","CODESYS CODESYS Runtime Toolkit","CODESYS CODESYS Control for BeagleBone SL","CODESYS CODESYS Control for emPC-A/iMX6 SL","CODESYS CODESYS Control for IOT2000 SL","CODESYS CODESYS Control for Linux ARM SL","CODESYS CODESYS Control for Linux SL","CODESYS CODESYS Control for PFC100 SL","CODESYS CODESYS 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