{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-3869", "assignerOrgId": "076d1eb6-cfab-4401-b34d-6dfc2a413bdb", "state": "PUBLISHED", "assignerShortName": "schneider", "dateReserved": "2026-03-10T08:36:56.944Z", "datePublished": "2026-09-11T15:13:18.079Z", "dateUpdated": "2026-09-11T19:14:45.128Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "076d1eb6-cfab-4401-b34d-6dfc2a413bdb", "shortName": "schneider", "dateUpdated": "2026-09-11T15:13:18.079Z"}, "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-303", "description": "CWE-303 Incorrect implementation of authentication algorithm", "type": "CWE"}]}], "affected": [{"vendor": "Schneider Electric", "product": "Modicon M580", "versions": [{"status": "affected", "version": "All versions with an application level below 4.00"}], "defaultStatus": "unaffected"}, {"vendor": "Schneider Electric", "product": "Modicon M580 Safety", "versions": [{"status": "affected", "version": "All versions with an application level below 4.20"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "CWE-303 : Incorrect Implementation of Authentication Algorithm vulnerability exists that could cause loss of confidentiality, integrity and availability of the PLC provided an application project with a lower application level is running on the PLC.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "CWE-303 : Incorrect Implementation of Authentication Algorithm vulnerability exists that could cause loss of confidentiality, integrity and availability of the PLC provided an application project with a lower application level is running on the PLC."}]}], "references": [{"url": "https://download.se.com/files?p_Doc_Ref=SEVD-2026-251-04&p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2026-251-04.pdf"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "subIntegrityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "CRITICAL", "baseScore": 9.2, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"}}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.5"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-09-11T19:14:31.513263Z", "id": "CVE-2026-3869", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-11T19:14:45.128Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-3869", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-09-11T19:14:31.513263Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-11T19:14:39.322Z"}}], "cna": {"source": {"discovery": "UNKNOWN"}, "metrics": [{"format": "CVSS", "cvssV4_0": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 9.2, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "Schneider Electric", "product": "Modicon M580", "versions": [{"status": "affected", "version": "All versions with an application level below 4.00"}], "defaultStatus": "unaffected"}, {"vendor": "Schneider Electric", "product": "Modicon M580 Safety", "versions": [{"status": "affected", "version": "All versions with an application level below 4.20"}], "defaultStatus": "unaffected"}], "references": [{"url": "https://download.se.com/files?p_Doc_Ref=SEVD-2026-251-04&p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2026-251-04.pdf"}], "x_generator": {"engine": "Vulnogram 1.0.5"}, "descriptions": [{"lang": "en", "value": "CWE-303 : Incorrect Implementation of Authentication Algorithm vulnerability exists that could cause loss of confidentiality, integrity and availability of the PLC provided an application project with a lower application level is running on the PLC.", "supportingMedia": [{"type": "text/html", "value": "CWE-303 : Incorrect Implementation of Authentication Algorithm vulnerability exists that could cause loss of confidentiality, integrity and availability of the PLC provided an application project with a lower application level is running on the PLC.", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-303", "description": "CWE-303 Incorrect implementation of authentication algorithm"}]}], "providerMetadata": {"orgId": "076d1eb6-cfab-4401-b34d-6dfc2a413bdb", "shortName": "schneider", "dateUpdated": "2026-09-11T15:13:18.079Z"}}}, "cveMetadata": {"cveId": "CVE-2026-3869", "state": "PUBLISHED", "dateUpdated": "2026-09-11T19:14:45.128Z", "dateReserved": "2026-03-10T08:36:56.944Z", "assignerOrgId": "076d1eb6-cfab-4401-b34d-6dfc2a413bdb", "datePublished": "2026-09-11T15:13:18.079Z", "assignerShortName": "schneider"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Modicon M580", "vendor": "Schneider Electric", "versions": [{"status": "affected", "version": "All versions with an application level below 4.00"}]}, {"defaultStatus": "unaffected", "product": "Modicon M580 Safety", "vendor": "Schneider Electric", "versions": [{"status": "affected", "version": "All versions with an application level below 4.20"}]}], "source": "cybersecurity@se.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "CWE-303 : Incorrect Implementation of Authentication Algorithm vulnerability exists that could cause loss of confidentiality, integrity and availability of the PLC provided an application project with a lower application level is running on the PLC."}], "id": "CVE-2026-3869", "lastModified": "2026-09-11T20:17:13.140", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 9.2, "baseSeverity": "CRITICAL", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "cybersecurity@se.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-3869", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-09-11T19:14:31.513263Z", "version": "2.0.3"}}]}, "published": "2026-09-11T16:17:06.200", "references": [{"source": "cybersecurity@se.com", "url": "https://download.se.com/files?p_Doc_Ref=SEVD-2026-251-04&p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2026-251-04.pdf"}], "sourceIdentifier": "cybersecurity@se.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-303"}], "source": "cybersecurity@se.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,4.00)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Modicon M580", "source": "cna", "vendor": "Schneider Electric"}, "product": "modicon_m580", "vendor": "schneider-electric"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,4.20)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "manual", "scores": [{"score": 100.0, "source": "manual"}]}, "original": {"product": "Modicon M580 Safety", "source": "cna", "vendor": "Schneider Electric"}, "product": "modicon_m580_safety", "vendor": "schneider-electric"}], "created": "2026-09-13T19:55:58.916956+00:00", "updated": "2026-09-13T19:55:58.917013+00:00", "vendors": ["schneider-electric", "schneider-electric$PRODUCT$modicon_m580", "schneider-electric$PRODUCT$modicon_m580_safety"]}