{"id":"CVE-2021-22420","aliases":["EUVD-2021-9566","GHSA-rwfm-qq63-7jqr"],"status":"published","title":"A component of the HarmonyOS has a External Control of System or Configuration Setting...","description":"A component of the HarmonyOS has a External Control of System or Configuration Setting vulnerability. Local attackers may exploit this vulnerability to cause the underlying trust of the application trustlist mechanism is missing..","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.00177,"percentile":0.07367,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-610","CWE-668"],"published":"2021-08-03T17:21:45Z","modified":"2026-06-17T03:37:11Z","products":[{"vendor":"huawei","product":"harmonyos"}],"references":[{"url":"https://device.harmonyos.com/cn/docs/security/update/oem_security_update_phone_202106-0000001165452077","tags":["x_refsource_MISC","x_transferred","Not Applicable","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-22420"},{"url":"https://github.com/advisories/GHSA-rwfm-qq63-7jqr"}],"sources":{"cve":[{"id":"CVE-2021-22420","description":"A component of the HarmonyOS has a External Control of System or Configuration Setting vulnerability. Local attackers may exploit this vulnerability to cause the underlying trust of the application trustlist mechanism is missing..","status":"published","published":"2021-08-03T17:21:45Z","modified":"2024-08-03T18:44:12.299Z","updated_at":"2026-11-02T14:32:57.701381Z"}],"euvd":[{"id":"EUVD-2021-9566","description":"A component of the HarmonyOS has a External Control of System or Configuration Setting vulnerability. Local attackers may exploit this vulnerability to cause the underlying trust of the application trustlist mechanism is missing..","status":"published","published":"2021-08-03T17:21:45Z","modified":"2024-08-03T18:44:12Z","updated_at":"2026-11-03T03:25:02.621949Z"}],"ghsa":[{"id":"GHSA-rwfm-qq63-7jqr","title":"A component of the HarmonyOS has a External Control of System or Configuration Setting...","description":"A component of the HarmonyOS has a External Control of System or Configuration Setting vulnerability. Local attackers may exploit this vulnerability to cause the underlying trust of the application trustlist mechanism is missing..","status":"published","published":"2022-05-24T19:09:49Z","modified":"2023-01-30T05:01:11Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-610","CWE-668"],"updated_at":"2026-11-02T14:46:21.550142Z"}],"nvd":[{"id":"CVE-2021-22420","description":"A component of the HarmonyOS has a External Control of System or Configuration Setting vulnerability. Local attackers may exploit this vulnerability to cause the underlying trust of the application trustlist mechanism is missing..","status":"published","published":"2021-08-03T18:15:08.127Z","modified":"2026-06-17T03:37:11.873Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":7.2,"vector":"AV:L/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-668"],"updated_at":"2026-11-02T14:06:56.562207Z"}]}}