{"id":"CVE-2026-21639","state":"PUBLISHED","title":"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","description":"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.","publishedAt":"2026-01-08T16:14:22.626Z","updatedAt":"2026-07-30T06:02:49.974Z","severity":{"score":8.8,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","source":"hackerone"},"assigner":"hackerone","products":["Ubiquiti Inc airMAX AC","Ubiquiti Inc airMAX M","Ubiquiti Inc airFiber AF60-XG","Ubiquiti Inc airFiber AF60"],"affected":[{"vendor":"Ubiquiti Inc","product":"airMAX AC","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"8.7.21","versionType":"semver"}]},{"vendor":"Ubiquiti Inc","product":"airMAX M","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"6.3.24","versionType":"semver"}]},{"vendor":"Ubiquiti Inc","product":"airFiber AF60-XG","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"1.2.3","versionType":"semver"}]},{"vendor":"Ubiquiti Inc","product":"airFiber AF60","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"2.6.8","versionType":"semver"}]}],"references":["https://community.ui.com/releases/Security-Advisory-Bulletin-061-061/1e4fe5f8-29c7-4a7d-a518-01b1537983ba"],"weaknesses":["CWE-120","CWE-77"],"ingestedAt":"2026-10-29T20:11:10.572Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/21xxx/CVE-2026-21639.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-21639","state":"PUBLISHED","datePublished":"2026-01-08T16:14:22.626Z","dateUpdated":"2026-07-30T06:02:49.974Z","assignerShortName":"hackerone","assignerOrgId":"36234546-b8fa-4601-9d6f-f4e334aa8ea1","dateReserved":"2026-01-01T15:00:02.339Z"},"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."}],"affected":[{"vendor":"Ubiquiti Inc","product":"airMAX AC","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"8.7.21","versionType":"semver"}]},{"vendor":"Ubiquiti Inc","product":"airMAX M","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"6.3.24","versionType":"semver"}]},{"vendor":"Ubiquiti Inc","product":"airFiber AF60-XG","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"1.2.3","versionType":"semver"}]},{"vendor":"Ubiquiti Inc","product":"airFiber AF60","defaultStatus":"unaffected","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"}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":8.8,"baseSeverity":"HIGH"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-120","type":"CWE","lang":"en","description":"CWE-120 Classic Buffer Overflow"}]}],"providerMetadata":{"shortName":"hackerone","orgId":"36234546-b8fa-4601-9d6f-f4e334aa8ea1","dateUpdated":"2026-07-30T06:02:49.974Z"}},"adp":[{"title":"CISA ADP Vulnrichment","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"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-77","type":"CWE","lang":"en","description":"CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection')"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-01-08T17:21:53.724Z"}}]}}}