{"id":"CVE-2020-14224","aliases":["EUVD-2020-6377","GHSA-43c2-x3q5-72p4"],"status":"published","title":"A vulnerability in the MIME message handling of the HCL Notes v9 client could potentially be...","description":"A vulnerability in the MIME message handling of the HCL Notes v9 client could potentially be exploited by an unauthenticated attacker resulting in a stack buffer overflow. This could allow a remote attacker to crash the Notes application or inject code into the system which would execute with the privileges of the currently logged-in user.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.02253,"percentile":0.83054,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2020-12-18T22:11:54Z","modified":"2026-06-17T02:54:26Z","products":[{"vendor":"hcl","product":"hcl notes"},{"vendor":"hcltech","product":"notes"}],"references":[{"url":"https://support.hcltechsw.com/csm?id=kb_article\u0026sysparm_article=KB0085913","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-14224"},{"url":"https://github.com/advisories/GHSA-43c2-x3q5-72p4"}],"sources":{"cve":[{"id":"CVE-2020-14224","description":"A vulnerability in the MIME message handling of the HCL Notes v9 client could potentially be exploited by an unauthenticated attacker resulting in a stack buffer overflow. This could allow a remote attacker to crash the Notes application or inject code into the system which would execute with the privileges of the currently logged-in user.","status":"published","published":"2020-12-18T22:11:54Z","modified":"2024-08-04T12:39:36.204Z","updated_at":"2026-11-02T14:35:46.476719Z"}],"euvd":[{"id":"EUVD-2020-6377","description":"A vulnerability in the MIME message handling of the HCL Notes v9 client could potentially be exploited by an unauthenticated attacker resulting in a stack buffer overflow. This could allow a remote attacker to crash the Notes application or inject code into the system which would execute with the privileges of the currently logged-in user.","status":"published","published":"2020-12-18T22:11:54Z","modified":"2024-08-04T12:39:36Z","updated_at":"2026-11-03T03:07:34.636169Z"}],"ghsa":[{"id":"GHSA-43c2-x3q5-72p4","title":"A vulnerability in the MIME message handling of the HCL Notes v9 client could potentially be...","description":"A vulnerability in the MIME message handling of the HCL Notes v9 client could potentially be exploited by an unauthenticated attacker resulting in a stack buffer overflow. This could allow a remote attacker to crash the Notes application or inject code into the system which would execute with the privileges of the currently logged-in user.","status":"published","published":"2022-05-24T17:36:57Z","modified":"2023-01-29T05:05:06Z","cwes":["CWE-787"],"updated_at":"2026-11-02T14:45:42.563524Z"}],"nvd":[{"id":"CVE-2020-14224","description":"A vulnerability in the MIME message handling of the HCL Notes v9 client could potentially be exploited by an unauthenticated attacker resulting in a stack buffer overflow. This could allow a remote attacker to crash the Notes application or inject code into the system which would execute with the privileges of the currently logged-in user.","status":"published","published":"2020-12-18T23:15:13.043Z","modified":"2026-06-17T02:54:26.043Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:06:27.73474Z"}]}}