CVE-2026-21638

{"id": "CVE-2026-21638", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "[email protected]", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}]}, "published": "2026-01-08T17:15:50.357", "references": [{"url": "https://community.ui.com/releases/Security-Advisory-Bulletin-060-060/cde18da7-2bc4-41bb-a9cc-48a4a4c479c1", "tags": ["Vendor Advisory"], "source": "[email protected]"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-77"}]}], "descriptions": [{"lang": "en", "value": "A malicious actor in Wi-Fi range of the affected product could leverage a vulnerability in the airMAX Wireless Protocol to achieve a remote code execution (RCE) within the affected product.\r\n\r\n\r\nAffected Products:\r\nUBB-XG (Version 1.2.2 and earlier) \r\nUDB-Pro/UDB-Pro-Sector (Version 1.4.1 and earlier) \r\nUBB (Version 3.1.5 and earlier) \r\n \r\nMitigation:\r\nUpdate your UBB-XG to Version 1.2.3 or later.\r\nUpdate your UDB-Pro/UDB-Pro-Sector to Version 1.4.2 or later.\r\nUpdate your UBB to Version 3.1.7 or later."}], "lastModified": "2026-01-14T21:06:07.787", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:ui:ubb-xg_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D3F0A7CB-D400-4398-B59D-62849049956B", "versionEndExcluding": "1.2.3"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:ui:ubb-xg:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "F840F091-FA53-4F41-9DDE-F00C0C377EC5"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:ui:udb-pro_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "691CC9AC-2146-4758-A112-63FD94997A40", "versionEndExcluding": "1.4.2"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:ui:udb-pro:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "5B87A97E-15F6-4524-BDE4-670C0E2FC8FB"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:ui:udb-pro-sector_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "770CD4B8-8548-4797-9FCB-C10400E44EA2", "versionEndExcluding": "1.4.2"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:ui:udb-pro-sector:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "F050664F-2D0A-42D9-AF9A-DCC35E77991C"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:ui:ubb_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "52AAAA01-7576-46BD-AC80-09EA5B3D6263", "versionEndExcluding": "3.1.7"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:ui:ubb:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "E6480788-66E3-496A-B1D8-4A190E5D2222"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "[email protected]"}