{"id":"CVE-2021-40520","aliases":["EUVD-2021-27696","GHSA-wcg7-h679-fv25"],"status":"published","title":"Airangel HSMX Gateway devices through 5.2.04 have Weak SSH Credentials.","description":"Airangel HSMX Gateway devices through 5.2.04 have Weak SSH Credentials.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.01183,"percentile":0.68024,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-521","CWE-522"],"published":"2021-11-10T16:06:12Z","modified":"2026-06-17T04:07:04Z","products":[{"vendor":"airangel","product":"hsmx-app-1000_firmware"},{"vendor":"airangel","product":"hsmx-app-100_firmware"},{"vendor":"airangel","product":"hsmx-app-20000_firmware"},{"vendor":"airangel","product":"hsmx-app-25_firmware"},{"vendor":"airangel","product":"hsmx-app-5000_firmware"}],"references":[{"url":"https://airangel.com/hsmx-gateway/","tags":["x_refsource_MISC","x_transferred","Product"]},{"url":"http://etizazmohsin.com/hsmx.html#ssh","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-40520"},{"url":"https://github.com/advisories/GHSA-wcg7-h679-fv25"}],"sources":{"cve":[{"id":"CVE-2021-40520","description":"Airangel HSMX Gateway devices through 5.2.04 have Weak SSH Credentials.","status":"published","published":"2021-11-10T16:06:12Z","modified":"2024-08-04T02:44:10.789Z","updated_at":"2026-11-02T14:33:01.495293Z"}],"euvd":[{"id":"EUVD-2021-27696","description":"Airangel HSMX Gateway devices through 5.2.04 have Weak SSH Credentials.","status":"published","published":"2021-11-10T16:06:12Z","modified":"2024-08-04T02:44:10Z","updated_at":"2026-11-03T03:24:20.264881Z"}],"ghsa":[{"id":"GHSA-wcg7-h679-fv25","title":"Airangel HSMX Gateway devices through 5.2.04 have Weak SSH Credentials.","description":"Airangel HSMX Gateway devices through 5.2.04 have Weak SSH Credentials.","status":"published","published":"2022-05-24T19:20:15Z","modified":"2023-01-27T05:04:02Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-522"],"updated_at":"2026-11-02T14:42:22.530177Z"}],"nvd":[{"id":"CVE-2021-40520","description":"Airangel HSMX Gateway devices through 5.2.04 have Weak SSH Credentials.","status":"published","published":"2021-11-10T17:15:11.02Z","modified":"2026-06-17T04:07:04.79Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-521"],"updated_at":"2026-11-02T14:07:00.984108Z"}]}}