{"id":"CVE-2026-21638","aliases":["EUVD-2026-1491","GHSA-m92x-4jg5-v4px"],"status":"published","title":"A malicious actor in Wi-Fi range of the affected product could leverage a vulnerability in the...","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.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00432,"percentile":0.3792,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-77"],"published":"2026-01-08T16:14:22Z","modified":"2026-06-17T10:18:51Z","products":[{"vendor":"ubiquiti inc","product":"ubb"},{"vendor":"ubiquiti inc","product":"ubb-xg"},{"vendor":"ubiquiti inc","product":"udb-pro/udb-pro-sector"},{"vendor":"ui","product":"ubb-xg_firmware"},{"vendor":"ui","product":"ubb_firmware"},{"vendor":"ui","product":"udb-pro-sector_firmware"},{"vendor":"ui","product":"udb-pro_firmware"}],"references":[{"url":"https://community.ui.com/releases/Security-Advisory-Bulletin-060-060/cde18da7-2bc4-41bb-a9cc-48a4a4c479c1","tags":["Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-21638"},{"url":"https://github.com/advisories/GHSA-m92x-4jg5-v4px"}],"sources":{"cve":[{"id":"CVE-2026-21638","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.","status":"published","published":"2026-01-08T16:14:22.563Z","modified":"2026-02-26T15:04:54.587Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-77"],"updated_at":"2026-11-02T13:41:42.05254Z"}],"euvd":[{"id":"EUVD-2026-1491","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.","status":"published","published":"2026-01-08T16:14:22Z","modified":"2026-02-26T15:04:54Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T19:48:26.495238Z"}],"ghsa":[{"id":"GHSA-m92x-4jg5-v4px","title":"A malicious actor in Wi-Fi range of the affected product could leverage a vulnerability in the...","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.\n\n\nAffected Products:\nUBB-XG (Version 1.2.2 and earlier) \nUDB-Pro/UDB-Pro-Sector  (Version 1.4.1 and earlier) \nUBB  (Version 3.1.5 and earlier) \n \nMitigation:\nUpdate your UBB-XG to Version 1.2.3 or later.\nUpdate your UDB-Pro/UDB-Pro-Sector  to Version 1.4.2 or later.\nUpdate your UBB to Version 3.1.7 or later.","status":"published","published":"2026-01-08T18:30:50Z","modified":"2026-01-08T18:30:56Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-77"],"updated_at":"2026-11-02T15:05:32.969485Z"}],"nvd":[{"id":"CVE-2026-21638","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.","status":"published","published":"2026-01-08T17:15:50.357Z","modified":"2026-06-17T10:18:51.297Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-77"],"updated_at":"2026-11-02T14:12:03.683495Z"}]}}