{"id":"CVE-2023-48121","aliases":["EUVD-2023-52202","GHSA-9rc5-4p7c-qp9h"],"status":"published","title":"An authentication bypass vulnerability in the Direct Connection Module in Ezviz CS-C6N-xxx prior...","description":"An authentication bypass vulnerability in the Direct Connection Module in Ezviz CS-C6N-xxx prior to v5.3.x build 20230401, Ezviz CS-CV310-xxx prior to v5.3.x build 20230401, Ezviz CS-C6CN-xxx prior to v5.3.x build 20230401, Ezviz CS-C3N-xxx prior to v5.3.x build 20230401 allows remote attackers to obtain sensitive information by sending crafted messages to the affected devices.","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.00832,"percentile":0.57878,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-287"],"published":"2023-11-28T00:00:00Z","modified":"2026-06-17T06:33:39Z","products":[{"vendor":"ezviz","product":"cs-c3n-a0-3h2wfrl_firmware"},{"vendor":"ezviz","product":"cs-c6cn-a0-3h2wfr_firmware"},{"vendor":"ezviz","product":"cs-c6n-a0-1c2wfr_firmware"},{"vendor":"ezviz","product":"cs-cv310-a0-1c2wfr_firmware"}],"references":[{"url":"https://www.ezviz.com/data-security/security-notice/detail/911","tags":["x_transferred","Vendor Advisory"]},{"url":"https://joerngermany.github.io/ezviz_vulnerability/","tags":["x_transferred"]},{"url":"https://www.hikvision.com/hk/support/cybersecurity/security-advisory/security-vulnerability-in-some-hikvision-products/","tags":["x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-48121"},{"url":"https://github.com/advisories/GHSA-9rc5-4p7c-qp9h"}],"sources":{"cve":[{"id":"CVE-2023-48121","description":"An authentication bypass vulnerability in the Direct Connection Module in Ezviz CS-C6N-xxx prior to v5.3.x build 20230401, Ezviz CS-CV310-xxx prior to v5.3.x build 20230401, Ezviz CS-C6CN-xxx prior to v5.3.x build 20230401, Ezviz CS-C3N-xxx prior to v5.3.x build 20230401 allows remote attackers to obtain sensitive information by sending crafted messages to the affected devices.","status":"published","published":"2023-11-28T00:00:00Z","modified":"2024-08-02T21:23:38.779Z","updated_at":"2026-11-02T14:35:25.866071Z"}],"euvd":[{"id":"EUVD-2023-52202","description":"An authentication bypass vulnerability in the Direct Connection Module in Ezviz CS-C6N-xxx prior to v5.3.x build 20230401, Ezviz CS-CV310-xxx prior to v5.3.x build 20230401, Ezviz CS-C6CN-xxx prior to v5.3.x build 20230401, Ezviz CS-C3N-xxx prior to v5.3.x build 20230401 allows remote attackers to obtain sensitive information by sending crafted messages to the affected devices.","status":"published","published":"2023-11-28T00:00:00Z","modified":"2024-08-02T21:23:38Z","updated_at":"2026-11-03T03:49:57.383318Z"}],"ghsa":[{"id":"GHSA-9rc5-4p7c-qp9h","title":"An authentication bypass vulnerability in the Direct Connection Module in Ezviz CS-C6N-xxx prior...","description":"An authentication bypass vulnerability in the Direct Connection Module in Ezviz CS-C6N-xxx prior to v5.3.x build 20230401, Ezviz CS-CV310-xxx prior to v5.3.x build 20230401, Ezviz CS-C6CN-xxx prior to v5.3.x build 20230401, Ezviz CS-C3N-xxx prior to v5.3.x build 20230401 allows remote attackers to obtain sensitive information by sending crafted messages to the affected devices.","status":"published","published":"2023-11-28T21:30:25Z","modified":"2024-01-09T15:30:28Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:55:22.936224Z"}],"nvd":[{"id":"CVE-2023-48121","description":"An authentication bypass vulnerability in the Direct Connection Module in Ezviz CS-C6N-xxx prior to v5.3.x build 20230401, Ezviz CS-CV310-xxx prior to v5.3.x build 20230401, Ezviz CS-C6CN-xxx prior to v5.3.x build 20230401, Ezviz CS-C3N-xxx prior to v5.3.x build 20230401 allows remote attackers to obtain sensitive information by sending crafted messages to the affected devices.","status":"published","published":"2023-11-28T19:15:07.34Z","modified":"2026-06-17T06:33:39.36Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:08:49.393375Z"}]}}