{"id":"CVE-2021-40045","aliases":["EUVD-2021-27235","GHSA-crq4-6fjx-j758"],"status":"published","title":"There is a vulnerability of signature verification mechanism failure in system upgrade through...","description":"There is a vulnerability of signature verification mechanism failure in system upgrade through recovery mode.Successful exploitation of this vulnerability may affect service confidentiality.","severity":{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.00152,"percentile":0.0442,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-347"],"published":"2022-02-09T22:03:55Z","modified":"2026-06-17T04:06:27Z","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/2022/2/","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://device.harmonyos.com/en/docs/security/update/security-bulletins-202202-0000001204253396","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-40045"},{"url":"https://github.com/advisories/GHSA-crq4-6fjx-j758"}],"sources":{"cve":[{"id":"CVE-2021-40045","description":"There is a vulnerability of signature verification mechanism failure in system upgrade through recovery mode.Successful exploitation of this vulnerability may affect service confidentiality.","status":"published","published":"2022-02-09T22:03:55Z","modified":"2024-08-04T02:27:31.481Z","updated_at":"2026-11-02T14:33:01.495293Z"}],"euvd":[{"id":"EUVD-2021-27235","description":"There is a vulnerability of signature verification mechanism failure in system upgrade through recovery mode.Successful exploitation of this vulnerability may affect service confidentiality.","status":"published","published":"2022-02-09T22:03:55Z","modified":"2024-08-04T02:27:31Z","updated_at":"2026-11-03T03:24:21.368958Z"}],"ghsa":[{"id":"GHSA-crq4-6fjx-j758","title":"There is a vulnerability of signature verification mechanism failure in system upgrade through...","description":"There is a vulnerability of signature verification mechanism failure in system upgrade through recovery mode.Successful exploitation of this vulnerability may affect service confidentiality.","status":"published","published":"2022-02-11T00:00:54Z","modified":"2023-02-03T05:05:49Z","cwes":["CWE-347"],"updated_at":"2026-11-02T14:53:48.348375Z"}],"nvd":[{"id":"CVE-2021-40045","description":"There is a vulnerability of signature verification mechanism failure in system upgrade through recovery mode.Successful exploitation of this vulnerability may affect service confidentiality.","status":"published","published":"2022-02-09T23:15:16.397Z","modified":"2026-06-17T04:06:27.023Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":2.1,"vector":"AV:L/AC:L/Au:N/C:P/I:N/A:N","level":"low","assessor":"primary"}],"cwes":["CWE-347"],"updated_at":"2026-11-02T14:07:04.6896Z"}]}}