{"id":"CVE-2021-40055","aliases":["EUVD-2021-27245","GHSA-922x-wr7x-r9pf"],"status":"published","title":"There is a man-in-the-middle attack vulnerability during system update download in recovery mode....","description":"There is a man-in-the-middle attack vulnerability during system update download in recovery mode. Successful exploitation of this vulnerability may affect integrity.","severity":{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.00514,"percentile":0.44123,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2022-03-07T13:50:15Z","modified":"2026-06-17T04:06:28Z","products":[{"vendor":"huawei","product":"emui"},{"vendor":"huawei","product":"harmonyos"},{"vendor":"huawei","product":"magic ui"},{"vendor":"huawei","product":"magic_ui"}],"references":[{"url":"https://consumer.huawei.com/en/support/bulletin/2022/3/","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://device.harmonyos.com/cn/docs/security/update/security-bulletins-phones-202203-0000001257385193","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-40055"},{"url":"https://github.com/advisories/GHSA-922x-wr7x-r9pf"}],"sources":{"cve":[{"id":"CVE-2021-40055","description":"There is a man-in-the-middle attack vulnerability during system update download in recovery mode. Successful exploitation of this vulnerability may affect integrity.","status":"published","published":"2022-03-07T13:50:15Z","modified":"2024-08-04T02:27:31.758Z","updated_at":"2026-11-02T14:33:01.495293Z"}],"euvd":[{"id":"EUVD-2021-27245","description":"There is a man-in-the-middle attack vulnerability during system update download in recovery mode. Successful exploitation of this vulnerability may affect integrity.","status":"published","published":"2022-03-07T13:50:15Z","modified":"2024-08-04T02:27:31Z","updated_at":"2026-11-03T03:24:21.368958Z"}],"ghsa":[{"id":"GHSA-922x-wr7x-r9pf","title":"There is a man-in-the-middle attack vulnerability during system update download in recovery mode....","description":"There is a man-in-the-middle attack vulnerability during system update download in recovery mode. Successful exploitation of this vulnerability may affect integrity.","status":"published","published":"2022-03-11T00:02:29Z","modified":"2023-01-27T05:00:37Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"medium"}],"updated_at":"2026-11-02T14:41:43.230329Z"}],"nvd":[{"id":"CVE-2021-40055","description":"There is a man-in-the-middle attack vulnerability during system update download in recovery mode. Successful exploitation of this vulnerability may affect integrity.","status":"published","published":"2022-03-10T17:43:20.81Z","modified":"2026-06-17T04:06:28.073Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":7.1,"vector":"AV:N/AC:M/Au:N/C:N/I:C/A:N","level":"high","assessor":"primary"}],"updated_at":"2026-11-02T14:07:05.198719Z"}]}}