{"id":"CVE-2021-22423","aliases":["EUVD-2021-9569","GHSA-jqr5-r9j2-p8qr"],"status":"published","title":"A component of the HarmonyOS has a Out-of-bounds Write Vulnerability. Local attackers may exploit...","description":"A component of the HarmonyOS has a Out-of-bounds Write Vulnerability. Local attackers may exploit this vulnerability to cause integer overflow.","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-787"],"published":"2021-08-03T17:21:56Z","modified":"2026-06-17T03:37:12Z","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-2021-22423"},{"url":"https://github.com/advisories/GHSA-jqr5-r9j2-p8qr"}],"sources":{"cve":[{"id":"CVE-2021-22423","description":"A component of the HarmonyOS has a Out-of-bounds Write Vulnerability. Local attackers may exploit this vulnerability to cause integer overflow.","status":"published","published":"2021-08-03T17:21:56Z","modified":"2024-08-03T18:44:13.172Z","updated_at":"2026-11-02T14:32:57.701381Z"}],"euvd":[{"id":"EUVD-2021-9569","description":"A component of the HarmonyOS has a Out-of-bounds Write Vulnerability. Local attackers may exploit this vulnerability to cause integer overflow.","status":"published","published":"2021-08-03T17:21:56Z","modified":"2024-08-03T18:44:13Z","updated_at":"2026-11-03T03:25:02.621949Z"}],"ghsa":[{"id":"GHSA-jqr5-r9j2-p8qr","title":"A component of the HarmonyOS has a Out-of-bounds Write Vulnerability. Local attackers may exploit...","description":"A component of the HarmonyOS has a Out-of-bounds Write Vulnerability. Local attackers may exploit this vulnerability to cause integer overflow.","status":"published","published":"2022-05-24T19:09:49Z","modified":"2023-01-30T05:01:13Z","cwes":["CWE-787"],"updated_at":"2026-11-02T14:46:22.009402Z"}],"nvd":[{"id":"CVE-2021-22423","description":"A component of the HarmonyOS has a Out-of-bounds Write Vulnerability. Local attackers may exploit this vulnerability to cause integer overflow.","status":"published","published":"2021-08-03T18:15:08.23Z","modified":"2026-06-17T03:37:12.173Z","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-787"],"updated_at":"2026-11-02T14:06:56.562207Z"}]}}