{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-3509","assignerOrgId":"270ccfa6-a436-4e77-922e-914ec3a9685c","state":"PUBLISHED","assignerShortName":"CERTVDE","dateReserved":"2026-03-04T09:24:19.745Z","datePublished":"2026-03-24T07:42:33.820Z","dateUpdated":"2026-03-26T12:35:48.666Z"},"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"CODESYS Control RTE (SL)","vendor":"CODESYS","versions":[{"lessThan":"3.5.22.0","status":"affected","version":"3.5.17.0","versionType":"semver"}]},{"defaultStatus":"unaffected","product":"CODESYS Control RTE (for Beckhoff CX) SL","vendor":"CODESYS","versions":[{"lessThan":"3.5.22.0","status":"affected","version":"3.5.17.0","versionType":"semver"}]},{"defaultStatus":"unaffected","product":"CODESYS Control Win (SL)","vendor":"CODESYS","versions":[{"lessThan":"3.5.22.0","status":"affected","version":"3.5.17.0","versionType":"semver"}]},{"defaultStatus":"unaffected","product":"CODESYS Runtime 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SL","vendor":"CODESYS","versions":[{"lessThan":"4.21.0.0","status":"affected","version":"4.1.0.0","versionType":"semver"}]},{"defaultStatus":"unaffected","product":"CODESYS Virtual Control SL","vendor":"CODESYS","versions":[{"lessThan":"4.21.0.0","status":"affected","version":"4.1.0.0","versionType":"semver"}]}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"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.<br>"}],"value":"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."}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-134","description":"CWE-134 Use of Externally-Controlled Format String","lang":"en","type":"CWE"}]}],"providerMetadata":{"orgId":"270ccfa6-a436-4e77-922e-914ec3a9685c","shortName":"CERTVDE","dateUpdated":"2026-03-24T07:42:33.820Z"},"references":[{"url":"https://certvde.com/de/advisories/VDE-2026-018"}],"source":{"advisory":"VDE-2026-018","defect":["CERT@VDE#641968"],"discovery":"UNKNOWN"},"title":"CODESYS Control Audit Log Format String DoS","x_generator":{"engine":"Vulnogram 0.1.0-dev"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-26T12:35:33.893071Z","id":"CVE-2026-3509","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-03-26T12:35:48.666Z"}}]}}