{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-43840", "assignerOrgId": "5f57b9bf-260d-4433-bf07-b6a79e9bb7d4", "state": "PUBLISHED", "assignerShortName": "CSA", "dateReserved": "2026-05-04T03:13:39.244Z", "datePublished": "2026-10-20T08:28:32.330Z", "dateUpdated": "2026-10-20T18:08:00.900Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "5f57b9bf-260d-4433-bf07-b6a79e9bb7d4", "shortName": "CSA", "dateUpdated": "2026-10-20T08:28:32.330Z"}, "datePublic": "2026-10-20T08:26:00.000Z", "affected": [{"vendor": "Advantech", "product": "ADAM-3600", "versions": [{"status": "affected", "version": "prior to version 2.8.5.0"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "A NULL pointer dereference vulnerability in the license manager service could allow an unauthenticated attacker to crash the service via the on_disconnected callback function.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>A NULL pointer dereference vulnerability in the license manager service could allow an unauthenticated attacker to crash the service via the on_disconnected callback function.</p>"}]}], "references": [{"url": "https://www.csa.gov.sg/alerts-and-advisories/alerts/al-2026-149"}, {"url": "https://www.advantech.com/en/security-advisory", "tags": ["vendor-advisory"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "subIntegrityImpact": "NONE", "vulnAvailabilityImpact": "LOW", "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": "MEDIUM", "baseScore": 6.9, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N"}}], "solutions": [{"lang": "en", "value": "Advantech has released a security update to address these vulnerabilities. Users and administrators of affected product versions are advised to update to the latest version immediately.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Advantech has released a security update to address these vulnerabilities. Users and administrators of affected product versions are advised to update to the latest version immediately."}]}], "credits": [{"lang": "en", "value": "Simone Bossi and Raffaele Bova at Nozomi Networks", "type": "finder"}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.5"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-43840", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-10-20T15:15:51.446797Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-20T18:08:00.900Z"}}]}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "ADAM-3600", "vendor": "Advantech", "versions": [{"status": "affected", "version": "prior to version 2.8.5.0"}]}], "source": "5f57b9bf-260d-4433-bf07-b6a79e9bb7d4"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A NULL pointer dereference vulnerability in the license manager service could allow an unauthenticated attacker to crash the service via the on_disconnected callback function."}], "id": "CVE-2026-43840", "lastModified": "2026-10-20T09:17:10.383", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 6.9, "baseSeverity": "MEDIUM", "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:N/PR:N/UI:N/VC:N/VI:N/VA:L/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": "LOW", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "5f57b9bf-260d-4433-bf07-b6a79e9bb7d4", "type": "Secondary"}]}, "published": "2026-10-20T09:17:10.383", "references": [{"source": "5f57b9bf-260d-4433-bf07-b6a79e9bb7d4", "url": "https://www.advantech.com/en/security-advisory"}, {"source": "5f57b9bf-260d-4433-bf07-b6a79e9bb7d4", "url": "https://www.csa.gov.sg/alerts-and-advisories/alerts/al-2026-149"}], "sourceIdentifier": "5f57b9bf-260d-4433-bf07-b6a79e9bb7d4", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,2.8.5.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "ADAM-3600", "source": "cna", "vendor": "Advantech"}, "product": "adam-3600", "vendor": "advantech"}], "created": "2026-10-20T15:45:16.287925+00:00", "title": "Null Pointer Dereference Causing Service Crash in Advantech ADAM-3600 License Manager", "updated": "2026-10-20T16:00:14.664052+00:00", "vendors": ["advantech", "advantech$PRODUCT$adam-3600"], "weaknesses": ["CWE-476"]}