{"id":"CVE-2023-50356","aliases":["EUVD-2023-55157","GHSA-hgqh-qj43-xfmf"],"status":"published","title":"Improper Certificate Validation in AREAL Topkapi Vision (Server)","description":"SSL connections to some LDAP servers are vulnerable to a man-in-the-middle attack due to improper certificate validation in AREAL Topkapi Vision (Server). This allows a remote unauthenticated attacker to gather sensitive information and prevent valid users from login.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:L","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00293,"percentile":0.22068,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-295"],"published":"2024-01-31T10:15:36Z","modified":"2026-06-17T06:39:31Z","products":[{"vendor":"areal sas","product":"topkapi vision (server)"},{"vendor":"areal-topkapi","product":"vision_server"}],"references":[{"url":"https://www.areal-topkapi.com/en/services/security-bulletins","tags":["x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-50356"},{"url":"https://github.com/advisories/GHSA-hgqh-qj43-xfmf"}],"sources":{"cve":[{"id":"CVE-2023-50356","title":"Improper Certificate Validation in AREAL Topkapi Vision (Server)","description":"SSL connections to some LDAP servers are vulnerable to a man-in-the-middle attack due to improper certificate validation in AREAL Topkapi Vision (Server). This allows a remote unauthenticated attacker to gather sensitive information and prevent valid users from login.","status":"published","published":"2024-01-31T10:15:36.765Z","modified":"2025-06-17T21:29:19.399Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:L","level":"medium","assessor":"cna"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T14:35:34.55015Z"}],"euvd":[{"id":"EUVD-2023-55157","description":"SSL connections to some LDAP servers are vulnerable to a man-in-the-middle attack due to improper certificate validation in AREAL Topkapi Vision (Server). This allows a remote unauthenticated attacker to gather sensitive information and prevent valid users from login.","status":"published","published":"2024-01-31T10:15:36Z","modified":"2025-06-17T21:29:19Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:L","level":"medium"}],"updated_at":"2026-11-02T20:32:20.512078Z"}],"ghsa":[{"id":"GHSA-hgqh-qj43-xfmf","title":"SSL connections to NOVELL and Synology LDAP server are vulnerable to a man-in-the-middle attack...","description":"SSL connections to NOVELL and Synology LDAP server are vulnerable to a man-in-the-middle attack due to improper certificate validation in AREAL Topkapi Vision (Server). This allows a remote unauthenticated attacker to gather sensitive information and prevent valid users from login.","status":"published","published":"2024-01-31T12:30:17Z","modified":"2024-01-31T12:30:24Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","level":"critical"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T14:55:30.717237Z"}],"nvd":[{"id":"CVE-2023-50356","description":"SSL connections to some LDAP servers are vulnerable to a man-in-the-middle attack due to improper certificate validation in AREAL Topkapi Vision (Server). This allows a remote unauthenticated attacker to gather sensitive information and prevent valid users from login.","status":"published","published":"2024-01-31T11:15:07.91Z","modified":"2026-06-17T06:39:31.717Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:L","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:L","level":"medium","assessor":"secondary"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T14:09:04.527564Z"}]}}