{"id":"CVE-2026-21638","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.\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.","publishedAt":"2026-01-08T16:14:22.563Z","updatedAt":"2026-02-26T15:04:54.587Z","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 UBB-XG","Ubiquiti Inc UDB-Pro/UDB-Pro-Sector","Ubiquiti Inc UBB"],"affected":[{"vendor":"Ubiquiti Inc","product":"UBB-XG","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"1.2.3","versionType":"semver"}]},{"vendor":"Ubiquiti Inc","product":"UDB-Pro/UDB-Pro-Sector","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"1.4.2","versionType":"semver"}]},{"vendor":"Ubiquiti Inc","product":"UBB","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"3.1.7","versionType":"semver"}]}],"references":["https://community.ui.com/releases/Security-Advisory-Bulletin-060-060/cde18da7-2bc4-41bb-a9cc-48a4a4c479c1"],"weaknesses":["CWE-77"],"ingestedAt":"2026-10-29T20:11:10.572Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/21xxx/CVE-2026-21638.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-21638","state":"PUBLISHED","datePublished":"2026-01-08T16:14:22.563Z","dateUpdated":"2026-02-26T15:04:54.587Z","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.\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."}],"affected":[{"vendor":"Ubiquiti Inc","product":"UBB-XG","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"1.2.3","versionType":"semver"}]},{"vendor":"Ubiquiti Inc","product":"UDB-Pro/UDB-Pro-Sector","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"1.4.2","versionType":"semver"}]},{"vendor":"Ubiquiti Inc","product":"UBB","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"3.1.7","versionType":"semver"}]}],"references":[{"url":"https://community.ui.com/releases/Security-Advisory-Bulletin-060-060/cde18da7-2bc4-41bb-a9cc-48a4a4c479c1"}],"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"}}],"providerMetadata":{"shortName":"hackerone","orgId":"36234546-b8fa-4601-9d6f-f4e334aa8ea1","dateUpdated":"2026-01-08T16:14:22.563Z"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-21638","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"version":"2.0.3","timestamp":"2026-01-09T04:55:28.516483Z"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-77","lang":"en","type":"CWE","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":"2026-02-26T15:04:54.587Z"}}]}}}