{"id":"CVE-2023-40253","aliases":["EUVD-2023-44850","GHSA-vjw2-5fjm-hhr4"],"status":"published","title":"Improper Authentication vulnerability in Genians Genian NAC V4.0, Genians Genian NAC V5.0,...","description":"Improper Authentication vulnerability in Genians Genian NAC V4.0, Genians Genian NAC V5.0, Genians Genian NAC Suite V5.0, Genians Genian ZTNA allows Authentication Abuse.This issue affects Genian NAC V4.0: from V4.0.0 through V4.0.155; Genian NAC V5.0: from V5.0.0 through V5.0.42 (Revision 117460); Genian NAC Suite V5.0: from V5.0.0 through V5.0.54; Genian ZTNA: from V6.0.0 through V6.0.15.","severity":{"version":"3.1","score":6,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00416,"percentile":0.3617,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-287","CWE-78","CWE-94"],"published":"2023-08-11T05:34:48Z","modified":"2026-06-17T06:16:53Z","products":[{"vendor":"genians","product":"genian nac suite v5.0"},{"vendor":"genians","product":"genian nac v4.0"},{"vendor":"genians","product":"genian nac v5.0"},{"vendor":"genians","product":"genian ztna"},{"vendor":"genians","product":"genian_nac"},{"vendor":"genians","product":"genian_ztna"}],"references":[{"url":"https://docs.genians.com/nac/5.0/release/ko/advisories/GN-SA-2023-001.html","tags":["x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-40253"},{"url":"https://www.genians.co.kr/notice/2023"},{"url":"https://github.com/advisories/GHSA-vjw2-5fjm-hhr4"}],"sources":{"cve":[{"id":"CVE-2023-40253","description":"Improper Authentication vulnerability in Genians Genian NAC V4.0, Genians Genian NAC V5.0, Genians Genian NAC Suite V5.0, Genians Genian ZTNA allows Authentication Abuse.This issue affects Genian NAC V4.0: from V4.0.0 through V4.0.155; Genian NAC V5.0: from V5.0.0 through V5.0.42 (Revision 117460); Genian NAC Suite V5.0: from V5.0.0 through V5.0.54; Genian ZTNA: from V6.0.0 through V6.0.15.\n\n","status":"published","published":"2023-08-11T05:34:48.443Z","modified":"2024-10-01T20:45:41.739Z","cvss":[{"version":"3.1","score":6,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-78"],"updated_at":"2026-11-02T14:35:21.971258Z"}],"euvd":[{"id":"EUVD-2023-44850","description":"Improper Authentication vulnerability in Genians Genian NAC V4.0, Genians Genian NAC V5.0, Genians Genian NAC Suite V5.0, Genians Genian ZTNA allows Authentication Abuse.This issue affects Genian NAC V4.0: from V4.0.0 through V4.0.155; Genian NAC V5.0: from V5.0.0 through V5.0.42 (Revision 117460); Genian NAC Suite V5.0: from V5.0.0 through V5.0.54; Genian ZTNA: from V6.0.0 through V6.0.15.\n\n","status":"published","published":"2023-08-11T05:34:48Z","modified":"2024-10-01T20:45:41Z","cvss":[{"version":"3.1","score":6,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N","level":"medium"}],"updated_at":"2026-11-03T00:27:59.473662Z"}],"ghsa":[{"id":"GHSA-vjw2-5fjm-hhr4","title":"Improper Authentication vulnerability in Genians Genian NAC V4.0, Genians Genian NAC V5.0,...","description":"Improper Authentication vulnerability in Genians Genian NAC V4.0, Genians Genian NAC V5.0, Genians Genian NAC Suite V5.0, Genians Genian ZTNA allows Functionality Misuse.This issue affects Genian NAC V4.0: from V4.0.0 through V4.0.155; Genian NAC V5.0: from V5.0.0 through V5.0.42 (Revision 117460); Genian NAC Suite V5.0: from V5.0.0 through V5.0.54; Genian ZTNA: from V6.0.0 through V6.0.15.\n\n","status":"published","published":"2023-08-11T06:30:36Z","modified":"2024-04-04T06:52:18Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N","level":"medium"}],"cwes":["CWE-78","CWE-94","CWE-287"],"updated_at":"2026-11-02T14:56:45.955138Z"}],"nvd":[{"id":"CVE-2023-40253","description":"Improper Authentication vulnerability in Genians Genian NAC V4.0, Genians Genian NAC V5.0, Genians Genian NAC Suite V5.0, Genians Genian ZTNA allows Authentication Abuse.This issue affects Genian NAC V4.0: from V4.0.0 through V4.0.155; Genian NAC V5.0: from V5.0.0 through V5.0.42 (Revision 117460); Genian NAC Suite V5.0: from V5.0.0 through V5.0.54; Genian ZTNA: from V6.0.0 through V6.0.15.\n\n","status":"published","published":"2023-08-11T06:15:10.673Z","modified":"2026-06-17T06:16:53.023Z","cvss":[{"version":"3.1","score":6,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N","level":"medium","assessor":"secondary"},{"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"}],"cwes":["CWE-78","CWE-287"],"updated_at":"2026-11-02T14:08:22.812138Z"}]}}