CVE-2026-54400

{"id": "CVE-2026-54400", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-54400", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-07-02T16:10:53.382801Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "support@hackerone.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 9.1, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH"}, "impactScore": 6.0, "exploitabilityScore": 2.3}]}, "affected": [{"source": "support@hackerone.com", "affectedData": [{"vendor": "Ubiquiti Inc", "product": "UniFi Access Application", "versions": [{"status": "affected", "version": "0", "lessThan": "4.2.29", "versionType": "semver"}], "defaultStatus": "unaffected"}]}], "published": "2026-07-02T15:17:03.623", "references": [{"url": "https://community.ui.com/releases/Security-Advisory-Bulletin-066-066/984eceb3-49c8-4227-942d-671c289b3afc", "tags": ["Vendor Advisory"], "source": "support@hackerone.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "support@hackerone.com", "description": [{"lang": "en", "value": "CWE-284"}]}], "descriptions": [{"lang": "en", "value": "A malicious actor with access to the network and high privileges could exploit an Improper Access Control vulnerability found in UniFi Access Application to escalate privileges on the host device."}], "lastModified": "2026-08-17T15:12:27.483", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:ui:unifi_access:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "CED8C93F-E70F-419F-ADA4-972BAFAF52AD", "versionEndExcluding": "4.2.29"}], "operator": "OR"}]}], "sourceIdentifier": "support@hackerone.com"}