{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-21639","assignerOrgId":"36234546-b8fa-4601-9d6f-f4e334aa8ea1","state":"PUBLISHED","assignerShortName":"hackerone","dateReserved":"2026-01-01T15:00:02.339Z","datePublished":"2026-01-08T16:14:22.626Z","dateUpdated":"2026-01-08T17:21:53.724Z"},"containers":{"cna":{"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."}],"affected":[{"defaultStatus":"unaffected","vendor":"Ubiquiti Inc","product":"airMAX AC","versions":[{"version":"0","status":"affected","lessThan":"8.7.21","versionType":"semver"}]},{"defaultStatus":"unaffected","vendor":"Ubiquiti Inc","product":"airMAX M","versions":[{"version":"0","status":"affected","lessThan":"6.3.24","versionType":"semver"}]},{"defaultStatus":"unaffected","vendor":"Ubiquiti Inc","product":"airFiber AF60-XG","versions":[{"version":"0","status":"affected","lessThan":"1.2.3","versionType":"semver"}]},{"defaultStatus":"unaffected","vendor":"Ubiquiti Inc","product":"airFiber AF60","versions":[{"version":"0","status":"affected","lessThan":"2.6.8","versionType":"semver"}]}],"references":[{"url":"https://community.ui.com/releases/Security-Advisory-Bulletin-061-061/1e4fe5f8-29c7-4a7d-a518-01b1537983ba"}],"providerMetadata":{"orgId":"36234546-b8fa-4601-9d6f-f4e334aa8ea1","shortName":"hackerone","dateUpdated":"2026-01-08T16:14:22.626Z"}},"adp":[{"problemTypes":[{"descriptions":[{"type":"CWE","cweId":"CWE-77","lang":"en","description":"CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection')"}]}],"metrics":[{"cvssV3_1":{"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"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-01-08T17:09:52.634464Z","id":"CVE-2026-21639","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-01-08T17:21:53.724Z"}}]}}