CVE-2026-77553

{"id": "CVE-2026-77553", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-77553", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-08-26T12:45:25.351665Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "fe490ce8-0395-4072-90d8-2707e1bdf984", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 9.9, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 6.0, "exploitabilityScore": 3.1}]}, "affected": [{"source": "fe490ce8-0395-4072-90d8-2707e1bdf984", "affectedData": [{"vendor": "Ubiquiti Inc", "product": "UniFi Access Application", "versions": [{"status": "affected", "version": "0", "lessThan": "4.3.5", "versionType": "semver"}], "defaultStatus": "unaffected"}]}], "published": "2026-08-26T11:16:39.283", "references": [{"url": "https://community.ui.com/releases/Security-Advisory-Bulletin-067/fc4a3488-7c43-4628-8bab-f715e96dbfc9", "source": "fe490ce8-0395-4072-90d8-2707e1bdf984"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "fe490ce8-0395-4072-90d8-2707e1bdf984", "description": [{"lang": "en", "value": "CWE-284"}]}], "descriptions": [{"lang": "en", "value": "A malicious actor with access to the network and low privileges could exploit an Improper Access Control vulnerability found in UniFi Access Application to escalate privileges on the host device."}], "lastModified": "2026-08-28T18:49:15.340", "sourceIdentifier": "fe490ce8-0395-4072-90d8-2707e1bdf984"}