{"id":"CVE-2026-3509","aliases":["EUVD-2026-14784","GHSA-34rr-qp2j-p4q7"],"status":"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.","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":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00367,"percentile":0.30987,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-134"],"published":"2026-03-24T07:42:33Z","modified":"2026-06-17T10:43:41Z","products":[{"vendor":"codesys","product":"codesys control for beaglebone sl"},{"vendor":"codesys","product":"codesys control for empc-a/imx6 sl"},{"vendor":"codesys","product":"codesys control for iot2000 sl"},{"vendor":"codesys","product":"codesys control for linux arm sl"},{"vendor":"codesys","product":"codesys control for linux sl"},{"vendor":"codesys","product":"codesys control for pfc100 sl"},{"vendor":"codesys","product":"codesys control for pfc200 sl"},{"vendor":"codesys","product":"codesys control for plcnext sl"},{"vendor":"codesys","product":"codesys control for raspberry pi sl"},{"vendor":"codesys","product":"codesys control for wago touch panels 600 sl"},{"vendor":"codesys","product":"codesys control rte (for beckhoff cx) sl"},{"vendor":"codesys","product":"codesys control rte (sl)"},{"vendor":"codesys","product":"codesys control win (sl)"},{"vendor":"codesys","product":"codesys runtime toolkit"},{"vendor":"codesys","product":"codesys virtual control sl"}],"references":[{"url":"https://certvde.com/de/advisories/VDE-2026-018"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-3509"},{"url":"https://github.com/advisories/GHSA-34rr-qp2j-p4q7"}],"sources":{"cve":[{"id":"CVE-2026-3509","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.","status":"published","published":"2026-03-24T07:42:33.82Z","modified":"2026-03-26T12:35:48.666Z","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":"cna"}],"cwes":["CWE-134"],"updated_at":"2026-11-02T13:49:09.229322Z"}],"euvd":[{"id":"EUVD-2026-14784","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.","status":"published","published":"2026-03-24T07:42:33Z","modified":"2026-03-26T12:35:48Z","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":"2026-11-02T19:25:28.569748Z"}],"ghsa":[{"id":"GHSA-34rr-qp2j-p4q7","title":"An unauthenticated remote attacker may be able to control the format string of messages processed...","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.","status":"published","published":"2026-03-24T09:30:31Z","modified":"2026-03-24T09:30:41Z","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-134"],"updated_at":"2026-11-02T15:06:49.419052Z"}],"nvd":[{"id":"CVE-2026-3509","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.","status":"published","published":"2026-03-24T08:16:01.657Z","modified":"2026-06-17T10:43:41.653Z","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":"secondary"}],"cwes":["CWE-134"],"updated_at":"2026-11-02T14:12:10.568062Z"}]}}