CVE-2026-77966

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-77966", "assignerOrgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6", "state": "PUBLISHED", "assignerShortName": "icscert", "dateReserved": "2026-08-21T19:56:57.914Z", "datePublished": "2026-08-31T15:33:30.167Z", "dateUpdated": "2026-10-05T19:22:28.810Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6", "shortName": "icscert", "dateUpdated": "2026-10-05T19:22:28.810Z"}, "title": "Ebyte NA111-M Missing Authorization", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-862", "description": "CWE-862 Missing Authorization", "type": "CWE"}]}], "affected": [{"vendor": "Ebyte", "product": "Ebyte NA111-M Firmware", "versions": [{"status": "affected", "version": "9013-2-17"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "The affected\u00a0Ebyte \n\nproduct\u00a0does not provide separation between limited and administrative \nmanagement functions. A low privileged authenticated attacker could \naccess security sensitive configuration functions and modify settings \nthat affect the confidentiality, integrity, or availability of the \ndevice.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "The affected Ebyte \n\nproduct does not provide separation between limited and administrative \nmanagement functions. A low privileged authenticated attacker could \naccess security sensitive configuration functions and modify settings \nthat affect the confidentiality, integrity, or availability of the \ndevice."}]}], "references": [{"url": "https://www.cisa.gov/news-events/ics-advisories/icsa-26-237-06"}, {"url": "https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-237-06.json"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseSeverity": "HIGH", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}}, {"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "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": 8.7, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"}}], "workarounds": [{"lang": "en", "value": "Ebyte acknowledged receipt of the reported vulnerabilities and indicated\n that a patch was under development. However, the vendor has not \nresponded to subsequent requests for coordination, and CISA has not been\n informed of the status or availability of the patch. Users are \nencouraged to reach out to Ebyte for more information.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Ebyte acknowledged receipt of the reported vulnerabilities and indicated\n that a patch was under development. However, the vendor has not \nresponded to subsequent requests for coordination, and CISA has not been\n informed of the status or availability of the patch. Users are \nencouraged to reach out to Ebyte for more information."}]}], "credits": [{"lang": "en", "value": "Jithin Nambiar J reported this vulnerability to CISA.", "type": "finder"}], "source": {"advisory": "ICSA-26-237-06", "discovery": "EXTERNAL"}, "x_generator": {"engine": "Vulnogram 1.0.4"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-77966", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-08-31T15:49:47.303625Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-01T16:28:55.444Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-77966", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-08-31T15:49:47.303625Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-01T16:21:32.327Z"}}], "cna": {"title": "Ebyte NA111-M Missing Authorization", "source": {"advisory": "ICSA-26-237-06", "discovery": "EXTERNAL"}, "credits": [{"lang": "en", "type": "finder", "value": "Jithin Nambiar J reported this vulnerability to CISA."}], "metrics": [{"format": "CVSS", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}, {"format": "CVSS", "cvssV4_0": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 8.7, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "HIGH", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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": "NONE", "privilegesRequired": "LOW", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "Ebyte", "product": "Ebyte NA111-M Firmware", "versions": [{"status": "affected", "version": "9013-2-17"}], "defaultStatus": "unaffected"}], "references": [{"url": "https://www.cisa.gov/news-events/ics-advisories/icsa-26-237-06"}, {"url": "https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-237-06.json"}], "workarounds": [{"lang": "en", "value": "Ebyte acknowledged receipt of the reported vulnerabilities and indicated\n that a patch was under development. However, the vendor has not \nresponded to subsequent requests for coordination, and CISA has not been\n informed of the status or availability of the patch. Users are \nencouraged to reach out to Ebyte for more information.", "supportingMedia": [{"type": "text/html", "value": "Ebyte acknowledged receipt of the reported vulnerabilities and indicated\n that a patch was under development. However, the vendor has not \nresponded to subsequent requests for coordination, and CISA has not been\n informed of the status or availability of the patch. Users are \nencouraged to reach out to Ebyte for more information.", "base64": false}]}], "x_generator": {"engine": "Vulnogram 1.0.4"}, "descriptions": [{"lang": "en", "value": "The affected\u00a0Ebyte \n\nproduct\u00a0does not provide separation between limited and administrative \nmanagement functions. A low privileged authenticated attacker could \naccess security sensitive configuration functions and modify settings \nthat affect the confidentiality, integrity, or availability of the \ndevice.", "supportingMedia": [{"type": "text/html", "value": "The affected Ebyte \n\nproduct does not provide separation between limited and administrative \nmanagement functions. A low privileged authenticated attacker could \naccess security sensitive configuration functions and modify settings \nthat affect the confidentiality, integrity, or availability of the \ndevice.", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-862", "description": "CWE-862 Missing Authorization"}]}], "providerMetadata": {"orgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6", "shortName": "icscert", "dateUpdated": "2026-10-05T19:22:28.810Z"}}}, "cveMetadata": {"cveId": "CVE-2026-77966", "state": "PUBLISHED", "dateUpdated": "2026-10-05T19:22:28.810Z", "dateReserved": "2026-08-21T19:56:57.914Z", "assignerOrgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6", "datePublished": "2026-08-31T15:33:30.167Z", "assignerShortName": "icscert"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Ebyte NA111-M Firmware", "vendor": "Ebyte", "versions": [{"status": "affected", "version": "9013-2-17"}]}], "source": "ics-cert@hq.dhs.gov"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The affected\u00a0Ebyte \n\nproduct\u00a0does not provide separation between limited and administrative \nmanagement functions. A low privileged authenticated attacker could \naccess security sensitive configuration functions and modify settings \nthat affect the confidentiality, integrity, or availability of the \ndevice."}], "id": "CVE-2026-77966", "lastModified": "2026-09-01T17:17:35.130", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "ics-cert@hq.dhs.gov", "type": "Secondary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.7, "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": "LOW", "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:L/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": "ics-cert@hq.dhs.gov", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-77966", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-08-31T15:49:47.303625Z", "version": "2.0.3"}}]}, "published": "2026-08-31T16:19:13.053", "references": [{"source": "ics-cert@hq.dhs.gov", "url": "https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-237-06.json"}, {"source": "ics-cert@hq.dhs.gov", "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-26-237-06"}], "sourceIdentifier": "ics-cert@hq.dhs.gov", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-862"}], "source": "ics-cert@hq.dhs.gov", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "9013-2-17"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "product": "ebyte_na111-m_firmware", "vendor": "ebyte"}], "created": "2026-08-31T16:30:05.337793+00:00", "updated": "2026-08-31T21:21:04.836216+00:00", "vendors": ["ebyte", "ebyte$PRODUCT$ebyte_na111-m_firmware"]}