{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-77534", "assignerOrgId": "fe490ce8-0395-4072-90d8-2707e1bdf984", "state": "PUBLISHED", "assignerShortName": "Ubiquiti", "dateReserved": "2026-08-20T20:32:30.112Z", "datePublished": "2026-08-26T09:21:17.844Z", "dateUpdated": "2026-08-26T09:21:17.844Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "fe490ce8-0395-4072-90d8-2707e1bdf984", "shortName": "Ubiquiti", "dateUpdated": "2026-08-26T09:21:17.844Z"}, "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-284", "description": "CWE-284 Improper Access Control - Generic", "type": "CWE"}]}], "affected": [{"vendor": "Ubiquiti Inc", "product": "UniFi OS Server", "versions": [{"status": "affected", "version": "0", "lessThan": "5.1.37", "versionType": "semver"}], "defaultStatus": "unaffected"}, {"vendor": "Ubiquiti Inc", "product": "Cloud Keys", "versions": [{"status": "affected", "version": "0", "lessThan": "5.1.31", "versionType": "semver"}], "defaultStatus": "unaffected"}, {"vendor": "Ubiquiti Inc", "product": "Network Video Recorders", "versions": [{"status": "affected", "version": "0", "lessThan": "5.1.31", "versionType": "semver"}], "defaultStatus": "unaffected"}, {"vendor": "Ubiquiti Inc", "product": "Enterprise Network Video Recorders", "versions": [{"status": "affected", "version": "0", "lessThan": "5.1.31", "versionType": "semver"}], "defaultStatus": "unaffected"}, {"vendor": "Ubiquiti Inc", "product": "Enterprise Network Attached Storage", "versions": [{"status": "affected", "version": "0", "lessThan": "5.1.31", "versionType": "semver"}], "defaultStatus": "unaffected"}, {"vendor": "Ubiquiti Inc", "product": "Dream Machines", "versions": [{"status": "affected", "version": "0", "lessThan": "5.1.31", "versionType": "semver"}], "defaultStatus": "unaffected"}, {"vendor": "Ubiquiti Inc", "product": "Enterprise Firewall Core", "versions": [{"status": "affected", "version": "0", "lessThan": "5.1.31", "versionType": "semver"}], "defaultStatus": "unaffected"}, {"vendor": "Ubiquiti Inc", "product": "Dream Routers", "versions": [{"status": "affected", "version": "0", "lessThan": "5.1.31", "versionType": "semver"}], "defaultStatus": "unaffected"}, {"vendor": "Ubiquiti Inc", "product": "Enterprise Fortress Gateway", "versions": [{"status": "affected", "version": "0", "lessThan": "5.1.31", "versionType": "semver"}], "defaultStatus": "unaffected"}, {"vendor": "Ubiquiti Inc", "product": "Cloud Gateways", "versions": [{"status": "affected", "version": "0", "lessThan": "5.1.31", "versionType": "semver"}], "defaultStatus": "unaffected"}, {"vendor": "Ubiquiti Inc", "product": "Dream Wall", "versions": [{"status": "affected", "version": "0", "lessThan": "5.1.31", "versionType": "semver"}], "defaultStatus": "unaffected"}, {"vendor": "Ubiquiti Inc", "product": "Express 7", "versions": [{"status": "affected", "version": "0", "lessThan": "5.1.31", "versionType": "semver"}], "defaultStatus": "unaffected"}, {"vendor": "Ubiquiti Inc", "product": "Network Attached Storage", "versions": [{"status": "affected", "version": "0", "lessThan": "5.1.32", "versionType": "semver"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "A malicious actor with access to the network and low privileges could exploit an Improper Access Control vulnerability found in certain devices running UniFi OS to escalate privileges within such UniFi OS devices or instances.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "A malicious actor with access to the network and low privileges could exploit an Improper Access Control vulnerability found in certain devices running UniFi OS to escalate privileges within such UniFi OS devices or instances."}]}], "references": [{"url": "https://community.ui.com/releases/Security-Advisory-Bulletin-067/fc4a3488-7c43-4628-8bab-f715e96dbfc9"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseSeverity": "CRITICAL", "baseScore": 9.9, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"}}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.5"}}}}

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{"created": "2026-08-26T10:30:04.370137+00:00", "title": "Privilege Escalation via Improper Access Control in UniFi OS Devices", "updated": "2026-08-26T10:30:04.370143+00:00", "vendors": []}