{"id":"CVE-2021-40040","aliases":["EUVD-2021-27230","GHSA-86g3-53hw-mw23"],"status":"published","title":"Vulnerability of writing data to an arbitrary address in the HW_KEYMASTER module. Successful...","description":"Vulnerability of writing data to an arbitrary address in the HW_KEYMASTER module. Successful exploitation of this vulnerability may affect confidentiality.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.0057,"percentile":0.47497,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2022-08-09T20:11:21Z","modified":"2026-06-17T04:06:26Z","products":[{"vendor":"huawei","product":"emui"},{"vendor":"huawei","product":"harmonyos"},{"vendor":"huawei","product":"magic_ui"}],"references":[{"url":"https://consumer.huawei.com/en/support/bulletin/2022/8/","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://device.harmonyos.com/en/docs/security/update/security-bulletins-phones-202209-0000001392278845","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-40040"},{"url":"https://consumer.huawei.com/en/support/bulletin/2022/8"},{"url":"https://github.com/advisories/GHSA-86g3-53hw-mw23"}],"sources":{"cve":[{"id":"CVE-2021-40040","description":"Vulnerability of writing data to an arbitrary address in the HW_KEYMASTER module. Successful exploitation of this vulnerability may affect confidentiality.","status":"published","published":"2022-08-09T20:11:21Z","modified":"2026-03-06T17:36:42.392Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"adp"}],"updated_at":"2026-11-02T14:33:01.852999Z"}],"euvd":[{"id":"EUVD-2021-27230","description":"Vulnerability of writing data to an arbitrary address in the HW_KEYMASTER module. Successful exploitation of this vulnerability may affect confidentiality.","status":"published","published":"2022-08-09T20:11:21Z","modified":"2026-03-06T17:36:42Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T19:48:07.686491Z"}],"ghsa":[{"id":"GHSA-86g3-53hw-mw23","title":"Vulnerability of writing data to an arbitrary address in the HW_KEYMASTER module. Successful...","description":"Vulnerability of writing data to an arbitrary address in the HW_KEYMASTER module. Successful exploitation of this vulnerability may affect confidentiality.","status":"published","published":"2022-08-11T00:00:16Z","modified":"2026-03-06T18:31:10Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T15:06:29.221258Z"}],"nvd":[{"id":"CVE-2021-40040","description":"Vulnerability of writing data to an arbitrary address in the HW_KEYMASTER module. Successful exploitation of this vulnerability may affect confidentiality.","status":"published","published":"2022-08-10T20:15:22.443Z","modified":"2026-06-17T04:06:26.393Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"secondary"}],"updated_at":"2026-11-02T14:07:06.906968Z"}]}}