{"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": "2026-03-24T07:42:33.820Z"}, "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 Toolkit", "vendor": "CODESYS", "versions": [{"lessThan": "3.5.22.0", "status": "affected", "version": "3.5.17.0", "versionType": "semver"}]}, {"defaultStatus": "unaffected", "product": "CODESYS Control for BeagleBone SL", "vendor": "CODESYS", "versions": [{"lessThan": "4.21.0.0", "status": "affected", "version": "4.1.0.0", "versionType": "semver"}]}, {"defaultStatus": "unaffected", "product": "CODESYS Control for emPC-A/iMX6 SL", "vendor": "CODESYS", "versions": [{"lessThan": "4.21.0.0", "status": "affected", "version": "4.1.0.0", "versionType": "semver"}]}, {"defaultStatus": "unaffected", "product": "CODESYS Control for IOT2000 SL", "vendor": "CODESYS", "versions": [{"lessThan": "4.21.0.0", "status": "affected", "version": "4.1.0.0", "versionType": "semver"}]}, {"defaultStatus": "unaffected", "product": "CODESYS Control for Linux ARM SL", "vendor": "CODESYS", "versions": [{"lessThan": "4.21.0.0", "status": "affected", "version": "4.1.0.0", "versionType": "semver"}]}, {"defaultStatus": "unaffected", "product": "CODESYS Control for Linux SL", "vendor": "CODESYS", "versions": [{"lessThan": "4.21.0.0", "status": "affected", "version": "4.1.0.0", "versionType": "semver"}]}, {"defaultStatus": "unaffected", "product": "CODESYS Control for PFC100 SL", "vendor": "CODESYS", "versions": [{"lessThan": "4.21.0.0", "status": "affected", "version": "4.1.0.0", "versionType": "semver"}]}, {"defaultStatus": "unaffected", "product": "CODESYS Control for PFC200 SL", "vendor": "CODESYS", "versions": [{"lessThan": "4.21.0.0", "status": "affected", "version": "4.1.0.0", "versionType": "semver"}]}, {"defaultStatus": "unaffected", "product": "CODESYS Control for PLCnext SL", "vendor": "CODESYS", "versions": [{"lessThan": "4.21.0.0", "status": "affected", "version": "4.1.0.0", "versionType": "semver"}]}, {"defaultStatus": "unaffected", "product": "CODESYS Control for Raspberry Pi SL", "vendor": "CODESYS", "versions": [{"lessThan": "4.21.0.0", "status": "affected", "version": "4.1.0.0", "versionType": "semver"}]}, {"defaultStatus": "unaffected", "product": "CODESYS Control for WAGO Touch Panels 600 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\u2011of\u2011service (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\u2011of\u2011service (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"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "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\u2011of\u2011service (DoS) condition."}], "id": "CVE-2026-3509", "lastModified": "2026-03-24T15:53:48.067", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "info@cert.vde.com", "type": "Primary"}]}, "published": "2026-03-24T08:16:01.657", "references": [{"source": "info@cert.vde.com", "url": "https://certvde.com/de/advisories/VDE-2026-018"}], "sourceIdentifier": "info@cert.vde.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-134"}], "source": "info@cert.vde.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[4.1.0.0,4.21.0.0)"}}], "enrichment": {"confidence": 89.0, "confidence_source": "matching", "scores": [{"score": 89.0, "source": "matching"}]}, "original": {"product": "CODESYS Control for BeagleBone SL", "source": "cna", "vendor": "CODESYS"}, "product": "control_for_beaglebone_sl", "vendor": "codesys"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[4.1.0.0,4.21.0.0)"}}], "enrichment": {"confidence": 89.0, "confidence_source": "matching", "scores": [{"score": 89.0, "source": "matching"}]}, "original": {"product": "CODESYS Control for emPC-A/iMX6 SL", "source": "cna", "vendor": "CODESYS"}, "product": "control_for_empc-a/imx6_sl", "vendor": "codesys"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[4.1.0.0,4.21.0.0)"}}], "enrichment": {"confidence": 88.0, "confidence_source": "matching", "scores": [{"score": 88.0, "source": "matching"}]}, "original": {"product": "CODESYS Control for IOT2000 SL", "source": "cna", "vendor": "CODESYS"}, "product": "control_for_iot2000_sl", "vendor": "codesys"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[4.1.0.0,4.21.0.0)"}}], "enrichment": {"confidence": 89.0, "confidence_source": "matching", "scores": [{"score": 89.0, "source": "matching"}]}, "original": {"product": "CODESYS Control for Linux ARM SL", "source": "cna", "vendor": "CODESYS"}, "product": "control_for_linux_arm_sl", "vendor": "codesys"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[4.1.0.0,4.21.0.0)"}}], "enrichment": {"confidence": 88.0, "confidence_source": "matching", "scores": [{"score": 88.0, "source": "matching"}]}, "original": {"product": "CODESYS Control for Linux SL", "source": "cna", "vendor": "CODESYS"}, "product": "control_for_linux_sl", "vendor": "codesys"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[4.1.0.0,4.21.0.0)"}}], "enrichment": {"confidence": 88.0, "confidence_source": "matching", "scores": [{"score": 88.0, "source": "matching"}]}, "original": {"product": "CODESYS Control for PFC100 SL", "source": "cna", "vendor": "CODESYS"}, "product": "control_for_pfc100_sl", "vendor": "codesys"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[4.1.0.0,4.21.0.0)"}}], "enrichment": {"confidence": 88.0, "confidence_source": "matching", "scores": [{"score": 88.0, "source": "matching"}]}, "original": {"product": "CODESYS Control for PFC200 SL", "source": "cna", "vendor": "CODESYS"}, "product": "control_for_pfc200_sl", "vendor": "codesys"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[4.1.0.0,4.21.0.0)"}}], "enrichment": {"confidence": 88.0, "confidence_source": "matching", "scores": [{"score": 88.0, "source": "matching"}]}, "original": {"product": "CODESYS Control for PLCnext SL", "source": "cna", "vendor": "CODESYS"}, "product": "control_for_plcnext_sl", "vendor": "codesys"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[4.1.0.0,4.21.0.0)"}}], "enrichment": {"confidence": 90.0, "confidence_source": "matching", "scores": [{"score": 90.0, "source": "matching"}]}, "original": {"product": "CODESYS Control for Raspberry Pi SL", "source": "cna", "vendor": "CODESYS"}, "product": "control_for_raspberry_pi_sl", "vendor": "codesys"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[4.1.0.0,4.21.0.0)"}}], "enrichment": {"confidence": 92.0, "confidence_source": "matching", "scores": [{"score": 92.0, "source": "matching"}]}, "original": {"product": "CODESYS Control for WAGO Touch Panels 600 SL", "source": "cna", "vendor": "CODESYS"}, "product": "control_for_wago_touch_panels_600_sl", "vendor": "codesys"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[3.5.17.0,3.5.22.0)"}}], "enrichment": {"confidence": 85.0, "confidence_source": "matching", "scores": [{"score": 85.0, "source": "matching"}]}, "original": {"product": "CODESYS Control RTE (SL)", "source": "cna", "vendor": "CODESYS"}, "product": "control_rte_(sl)", "vendor": "codesys"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[3.5.17.0,3.5.22.0)"}}], "enrichment": {"confidence": 89.0, "confidence_source": "matching", "scores": [{"score": 89.0, "source": "matching"}]}, "original": {"product": "CODESYS Control RTE (for Beckhoff CX) SL", "source": "cna", "vendor": "CODESYS"}, "product": "control_rte_\\(for_beckhoff_cx\\)_sl", "vendor": "codesys"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[3.5.17.0,3.5.22.0)"}}], "enrichment": {"confidence": 85.0, "confidence_source": "matching", "scores": [{"score": 85.0, "source": "matching"}]}, "original": {"product": "CODESYS Control Win (SL)", "source": "cna", "vendor": "CODESYS"}, "product": "control_win_(sl)", "vendor": "codesys"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[3.5.17.0,3.5.22.0)"}}], "enrichment": {"confidence": 85.0, "confidence_source": "matching", "scores": [{"score": 85.0, "source": "matching"}]}, "original": {"product": "CODESYS Runtime Toolkit", "source": "cna", "vendor": "CODESYS"}, "product": "runtime_toolkit", "vendor": "codesys"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[4.1.0.0,4.21.0.0)"}}], "enrichment": {"confidence": 87.0, "confidence_source": "matching", "scores": [{"score": 87.0, "source": "matching"}]}, "original": {"product": "CODESYS Virtual Control SL", "source": "cna", "vendor": "CODESYS"}, "product": "virtual_control_sl", "vendor": "codesys"}], "created": "2026-03-25T11:48:52.648939+00:00", "updated": "2026-03-25T11:48:52.649163+00:00", "vendors": ["codesys", "codesys$PRODUCT$control_for_beaglebone_sl", "codesys$PRODUCT$control_for_empc-a/imx6_sl", "codesys$PRODUCT$control_for_iot2000_sl", "codesys$PRODUCT$control_for_linux_arm_sl", "codesys$PRODUCT$control_for_linux_sl", "codesys$PRODUCT$control_for_pfc100_sl", "codesys$PRODUCT$control_for_pfc200_sl", "codesys$PRODUCT$control_for_plcnext_sl", "codesys$PRODUCT$control_for_raspberry_pi_sl", "codesys$PRODUCT$control_for_wago_touch_panels_600_sl", "codesys$PRODUCT$control_rte_(sl)", "codesys$PRODUCT$control_rte_\\(for_beckhoff_cx\\)_sl", "codesys$PRODUCT$control_win_(sl)", "codesys$PRODUCT$runtime_toolkit", "codesys$PRODUCT$virtual_control_sl"]}