{"id":"CVE-2023-23901","aliases":["EUVD-2023-27984","GHSA-m4jm-xmcc-hjcm"],"status":"published","title":"Improper following of a certificate's chain of trust exists in SkyBridge MB-A200 firmware Ver. 01...","description":"Improper following of a certificate's chain of trust exists in SkyBridge MB-A200 firmware Ver. 01.00.05 and earlier, and SkyBridge BASIC MB-A130 firmware Ver. 1.4.1 and earlier, which may allow a remote unauthenticated attacker to eavesdrop on or alter the communication sent to the WebUI of the product.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.00456,"percentile":0.39826,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-295"],"published":"2023-05-10T00:00:00Z","modified":"2026-06-17T05:38:13Z","products":[{"vendor":"seiko solutions inc.","product":"skybridge mb-a200 and skybridge basic mb-a130"},{"vendor":"seiko-sol","product":"skybridge_basic_mb-a130_firmware"},{"vendor":"seiko-sol","product":"skybridge_mb-a200_firmware"}],"references":[{"url":"https://www.seiko-sol.co.jp/archives/73969/","tags":["x_transferred","Vendor Advisory"]},{"url":"https://www.seiko-sol.co.jp/products/skybridge/skybridge_download/mb-a100/","tags":["x_transferred","Product"]},{"url":"https://www.seiko-sol.co.jp/products/skybridge/skybridge_download/mb-a200/","tags":["x_transferred","Product"]},{"url":"https://www.seiko-sol.co.jp/products/skybridge/skybridge_download/mb-a130/","tags":["x_transferred","Product"]},{"url":"https://www.seiko-sol.co.jp/products/skyspider/skyspider_download/mb-r210/","tags":["x_transferred","Product"]},{"url":"https://jvn.jp/en/jp/JVN40604023/","tags":["x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-23901"},{"url":"https://jvn.jp/en/jp/JVN40604023"},{"url":"https://www.seiko-sol.co.jp/archives/73969"},{"url":"https://www.seiko-sol.co.jp/products/skybridge/skybridge_download/mb-a100"},{"url":"https://www.seiko-sol.co.jp/products/skybridge/skybridge_download/mb-a130"},{"url":"https://www.seiko-sol.co.jp/products/skybridge/skybridge_download/mb-a200"},{"url":"https://www.seiko-sol.co.jp/products/skyspider/skyspider_download/mb-r210"},{"url":"https://github.com/advisories/GHSA-m4jm-xmcc-hjcm"}],"sources":{"cve":[{"id":"CVE-2023-23901","description":"Improper following of a certificate's chain of trust exists in SkyBridge MB-A200 firmware Ver. 01.00.05 and earlier, and SkyBridge BASIC MB-A130 firmware Ver. 1.4.1 and earlier, which may allow a remote unauthenticated attacker to eavesdrop on or alter the communication sent to the WebUI of the product.","status":"published","published":"2023-05-10T00:00:00Z","modified":"2025-01-28T14:51:04.065Z","cvss":[{"version":"3.1","score":4.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"adp"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T14:35:20.812737Z"}],"euvd":[{"id":"EUVD-2023-27984","description":"Improper following of a certificate's chain of trust exists in SkyBridge MB-A200 firmware Ver. 01.00.05 and earlier, and SkyBridge BASIC MB-A130 firmware Ver. 1.4.1 and earlier, which may allow a remote unauthenticated attacker to eavesdrop on or alter the communication sent to the WebUI of the product.","status":"published","published":"2023-05-10T00:00:00Z","modified":"2025-01-28T14:51:04Z","cvss":[{"version":"3.1","score":4.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-03T00:04:11.814906Z"}],"ghsa":[{"id":"GHSA-m4jm-xmcc-hjcm","title":"Improper following of a certificate's chain of trust exists in SkyBridge MB-A200 firmware Ver. 01...","description":"Improper following of a certificate's chain of trust exists in SkyBridge MB-A200 firmware Ver. 01.00.05 and earlier, and SkyBridge BASIC MB-A130 firmware Ver. 1.4.1 and earlier, which may allow a remote unauthenticated attacker to eavesdrop on or alter the communication sent to the WebUI of the product.","status":"published","published":"2023-05-10T06:30:28Z","modified":"2024-04-11T21:13:54Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T14:57:08.55794Z"}],"nvd":[{"id":"CVE-2023-23901","description":"Improper following of a certificate's chain of trust exists in SkyBridge MB-A200 firmware Ver. 01.00.05 and earlier, and SkyBridge BASIC MB-A130 firmware Ver. 1.4.1 and earlier, which may allow a remote unauthenticated attacker to eavesdrop on or alter the communication sent to the WebUI of the product.","status":"published","published":"2023-05-10T06:15:11.727Z","modified":"2026-06-17T05:38:13.917Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"primary"},{"version":"3.1","score":4.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T14:08:01.131774Z"}]}}