{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-73177", "assignerOrgId": "bec8025f-a851-46e5-b3a3-058e6b0aa23c", "state": "PUBLISHED", "assignerShortName": "Nozomi", "dateReserved": "2026-08-11T09:36:40.350Z", "datePublished": "2026-09-16T13:03:44.204Z", "dateUpdated": "2026-09-16T13:03:44.204Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "bec8025f-a851-46e5-b3a3-058e6b0aa23c", "shortName": "Nozomi", "dateUpdated": "2026-09-16T13:03:44.204Z"}, "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-345", "description": "CWE-345 Insufficient Verification of Data Authenticity", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-185", "descriptions": [{"lang": "en", "value": "CAPEC-185 Malicious Software Update"}]}], "affected": [{"vendor": "Advantech", "product": "EKI-1242IEIMS", "versions": [{"status": "affected", "version": "0", "lessThanOrEqual": "1.06.01", "versionType": "semver"}], "defaultStatus": "unaffected"}, {"vendor": "Advantech", "product": "EKI-1242EIMS", "versions": [{"status": "affected", "version": "0", "lessThanOrEqual": "1.06.01", "versionType": "semver"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "Nozomi Networks Labs identified a CWE-345: Insufficient Verification of Data Authenticity vulnerability in the firmware upgrade mechanism of the Advantech EKI-1242EIMS in firmware version V1.06.01. The device accepts firmware images through the authenticated web management interface without performing any cryptographic signature or certificate verification. An authenticated administrator-level attacker can install arbitrary modified firmware on the device, enabling full persistent compromise of the platform.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>Nozomi Networks Labs identified a CWE-345: Insufficient Verification of Data Authenticity vulnerability in the firmware upgrade mechanism of the Advantech EKI-1242EIMS in firmware version V1.06.01. The device accepts firmware images through the authenticated web management interface without performing any cryptographic signature or certificate verification. An authenticated administrator-level attacker can install arbitrary modified firmware on the device, enabling full persistent compromise of the platform.</p>"}]}], "references": [{"url": "https://www.nozominetworks.com/labs/vulnerability-advisories-cve-2026-73177", "tags": ["third-party-advisory"]}, {"url": "https://advcloudfiles.advantech.com/cms/5dafee28-ad53-4d07-a328-7896fcc24b6e/Security%20Advisory%20PDF%20File/SECURITY-ADVISORY----EKI-1242IEIMS-updated-20260904.pdf", "tags": ["vendor-advisory"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "HIGH", "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": "HIGH", "baseScore": 8.6, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"}}], "credits": [{"lang": "en", "value": "Simone Bossi at Nozomi Networks", "type": "finder"}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 0.5.0"}}}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "EKI-1242IEIMS", "vendor": "Advantech", "versions": [{"lessThanOrEqual": "1.06.01", "status": "affected", "version": "0", "versionType": "semver"}]}, {"defaultStatus": "unaffected", "product": "EKI-1242EIMS", "vendor": "Advantech", "versions": [{"lessThanOrEqual": "1.06.01", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "prodsec@nozominetworks.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Nozomi Networks Labs identified a CWE-345: Insufficient Verification of Data Authenticity vulnerability in the firmware upgrade mechanism of the Advantech EKI-1242EIMS in firmware version V1.06.01. The device accepts firmware images through the authenticated web management interface without performing any cryptographic signature or certificate verification. An authenticated administrator-level attacker can install arbitrary modified firmware on the device, enabling full persistent compromise of the platform."}], "id": "CVE-2026-73177", "lastModified": "2026-09-16T14:17:08.133", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.6, "baseSeverity": "HIGH", "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": "HIGH", "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:H/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": "prodsec@nozominetworks.com", "type": "Secondary"}]}, "published": "2026-09-16T14:17:08.133", "references": [{"source": "prodsec@nozominetworks.com", "url": "https://advcloudfiles.advantech.com/cms/5dafee28-ad53-4d07-a328-7896fcc24b6e/Security%20Advisory%20PDF%20File/SECURITY-ADVISORY----EKI-1242IEIMS-updated-20260904.pdf"}, {"source": "prodsec@nozominetworks.com", "url": "https://www.nozominetworks.com/labs/vulnerability-advisories-cve-2026-73177"}], "sourceIdentifier": "prodsec@nozominetworks.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-345"}], "source": "prodsec@nozominetworks.com", "type": "Primary"}]}

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