CVE-2026-21639

{"id": "CVE-2026-21639", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.4, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 2.5, "exploitabilityScore": 2.8}]}, "published": "2026-01-08T17:15:50.483", "references": [{"url": "https://community.ui.com/releases/Security-Advisory-Bulletin-061-061/1e4fe5f8-29c7-4a7d-a518-01b1537983ba", "tags": ["Vendor Advisory"], "source": "support@hackerone.com"}], "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\n\r\nAffected Products:\r\n\r\nairMAX AC (Version 8.7.20 and earlier)\r\nairMAX M (Version 6.3.22 and earlier)\r\nairFiber AF60-XG (Version 1.2.2 and earlier)\r\nairFiber AF60 (Version 2.6.7 and earlier)\r\n\r\n \r\n\r\nMitigation:\r\n\r\nUpdate your airMAX AC to Version 8.7.21 or later.\r\nUpdate your airMAX M to Version 6.3.24 or later.\r\nUpdate your airFiber AF60-XG to Version 1.2.3 or later.\r\nUpdate your airFiber AF60 to Version 2.6.8 or later."}], "lastModified": "2026-01-14T21:06:35.607", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:ui:airmax_ac_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E6CAE32F-15CF-472D-9CB2-2B863A9FF429", "versionEndExcluding": "8.7.21"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:ui:airmax_ac:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "D7522076-32AA-4C46-A383-55496EB8E403"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:ui:airmax_m_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "23228893-D868-4C84-82A8-3AAA30193F95", "versionEndExcluding": "6.3.24"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:ui:airmax_m:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "22401E7D-9BB7-4015-A28B-1C134C429E56"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:ui:airfiber_af60-xg_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C7197F20-55D0-4EF4-9C97-60A56E888427", "versionEndExcluding": "1.2.3"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:ui:airfiber_af60-xg:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "AE317510-2899-438A-9C95-83A6C7FA1B2F"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:ui:airfiber_af60_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F1C29843-49DD-4B68-89C6-14E3CFB70E62", "versionEndExcluding": "2.6.8"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:ui:airfiber_af60:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "30F52A22-F069-426B-8664-E94E41E3863E"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "support@hackerone.com"}