{"id":"CVE-2021-22451","aliases":["EUVD-2021-9597","GHSA-7g39-c9pp-rq4p"],"status":"published","title":"A component of the HarmonyOS has a Integer Overflow or Wraparound vulnerability. Local attackers...","description":"A component of the HarmonyOS has a Integer Overflow or Wraparound vulnerability. Local attackers may exploit this vulnerability to cause memory overwriting.","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":"2026-11-12","score":0.00167,"percentile":0.06038,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-190"],"published":"2021-10-28T12:31:11Z","modified":"2026-06-17T03:37:15Z","products":[{"vendor":"huawei","product":"harmonyos"}],"references":[{"url":"https://device.harmonyos.com/cn/docs/security/update/security-bulletins-202107-0000001123874808","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-22451"},{"url":"https://github.com/advisories/GHSA-7g39-c9pp-rq4p"}],"sources":{"cve":[{"id":"CVE-2021-22451","description":"A component of the HarmonyOS has a Integer Overflow or Wraparound vulnerability. Local attackers may exploit this vulnerability to cause memory overwriting.","status":"published","published":"2021-10-28T12:31:11Z","modified":"2024-08-03T18:44:13.28Z","updated_at":"2026-11-02T14:32:57.701381Z"}],"euvd":[{"id":"EUVD-2021-9597","description":"A component of the HarmonyOS has a Integer Overflow or Wraparound vulnerability. Local attackers may exploit this vulnerability to cause memory overwriting.","status":"published","published":"2021-10-28T12:31:11Z","modified":"2024-08-03T18:44:13Z","updated_at":"2026-11-03T03:25:02.042856Z"}],"ghsa":[{"id":"GHSA-7g39-c9pp-rq4p","title":"A component of the HarmonyOS has a Integer Overflow or Wraparound vulnerability. Local attackers...","description":"A component of the HarmonyOS has a Integer Overflow or Wraparound vulnerability. Local attackers may exploit this vulnerability to cause memory overwriting.","status":"published","published":"2022-05-24T19:19:09Z","modified":"2023-01-30T05:03:29Z","cwes":["CWE-190"],"updated_at":"2026-11-02T14:46:50.963031Z"}],"nvd":[{"id":"CVE-2021-22451","description":"A component of the HarmonyOS has a Integer Overflow or Wraparound vulnerability. Local attackers may exploit this vulnerability to cause memory overwriting.","status":"published","published":"2021-10-28T13:15:08.86Z","modified":"2026-06-17T03:37:15.067Z","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":4.6,"vector":"AV:L/AC:L/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-190"],"updated_at":"2026-11-02T14:07:00.549994Z"}]}}