{"id":"CVE-2020-4097","aliases":["EUVD-2020-25344","GHSA-f8fj-f7w2-x4xm"],"status":"published","title":"In HCL Notes version 9 previous to release 9.0.1 FixPack 10 Interim Fix 8, version 10 previous to...","description":"In HCL Notes version 9 previous to release 9.0.1 FixPack 10 Interim Fix 8, version 10 previous to release 10.0.1 FixPack 6 and version 11 previous to 11.0.1 FixPack 1, a vulnerability in the input parameter handling of the Notes Client could potentially be exploited by an attacker resulting in a buffer overflow. This could enable an attacker to crash HCL Notes or execute attacker-controlled code on the client.","severity":{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.00318,"percentile":0.2487,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-120"],"published":"2020-11-05T16:45:02Z","modified":"2026-06-17T03:19:32Z","products":[{"vendor":"hcl","product":"hcl notes"},{"vendor":"hcltech","product":"notes"}],"references":[{"url":"https://support.hcltechsw.com/csm?id=kb_article\u0026sysparm_article=KB0084796","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-4097"},{"url":"https://github.com/advisories/GHSA-f8fj-f7w2-x4xm"}],"sources":{"cve":[{"id":"CVE-2020-4097","description":"In HCL Notes version 9 previous to release 9.0.1 FixPack 10 Interim Fix 8, version 10 previous to release 10.0.1 FixPack 6 and version 11 previous to 11.0.1 FixPack 1, a vulnerability in the input parameter handling of the Notes Client could potentially be exploited by an attacker resulting in a buffer overflow. This could enable an attacker to crash HCL Notes or execute attacker-controlled code on the client.","status":"published","published":"2020-11-05T16:45:02Z","modified":"2024-08-04T07:52:20.916Z","updated_at":"2026-11-02T14:35:55.797746Z"}],"euvd":[{"id":"EUVD-2020-25344","description":"In HCL Notes version 9 previous to release 9.0.1 FixPack 10 Interim Fix 8, version 10 previous to release 10.0.1 FixPack 6 and version 11 previous to 11.0.1 FixPack 1, a vulnerability in the input parameter handling of the Notes Client could potentially be exploited by an attacker resulting in a buffer overflow. This could enable an attacker to crash HCL Notes or execute attacker-controlled code on the client.","status":"published","published":"2020-11-05T16:45:02Z","modified":"2024-08-04T07:52:20Z","updated_at":"2026-11-03T03:08:07.872525Z"}],"ghsa":[{"id":"GHSA-f8fj-f7w2-x4xm","title":"In HCL Notes version 9 previous to release 9.0.1 FixPack 10 Interim Fix 8, version 10 previous to...","description":"In HCL Notes version 9 previous to release 9.0.1 FixPack 10 Interim Fix 8, version 10 previous to release 10.0.1 FixPack 6 and version 11 previous to 11.0.1 FixPack 1, a vulnerability in the input parameter handling of the Notes Client could potentially be exploited by an attacker resulting in a buffer overflow. This could enable an attacker to crash HCL Notes or execute attacker-controlled code on the client.","status":"published","published":"2022-05-24T17:33:15Z","modified":"2023-01-29T05:05:14Z","cwes":["CWE-120"],"updated_at":"2026-11-02T14:45:44.421144Z"}],"nvd":[{"id":"CVE-2020-4097","description":"In HCL Notes version 9 previous to release 9.0.1 FixPack 10 Interim Fix 8, version 10 previous to release 10.0.1 FixPack 6 and version 11 previous to 11.0.1 FixPack 1, a vulnerability in the input parameter handling of the Notes Client could potentially be exploited by an attacker resulting in a buffer overflow. This could enable an attacker to crash HCL Notes or execute attacker-controlled code on the client.","status":"published","published":"2020-11-05T17:15:12.537Z","modified":"2026-06-17T03:19:32.923Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"medium","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-120"],"updated_at":"2026-11-02T14:06:21.80969Z"}]}}