{"id":"CVE-2017-7909","aliases":["EUVD-2017-16880","GHSA-63p9-9p5p-v46f"],"status":"published","title":"A Use of Client-Side Authentication issue was discovered in Advantech B+B SmartWorx MESR901...","description":"A Use of Client-Side Authentication issue was discovered in Advantech B+B SmartWorx MESR901 firmware versions 1.5.2 and prior. The web interface uses JavaScript to check client authentication and redirect unauthorized users. Attackers may intercept requests and bypass authentication to access restricted web pages.","severity":{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.02616,"percentile":0.85544,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-287","CWE-603"],"published":"2017-05-06T00:00:00Z","modified":"2026-06-17T01:25:26Z","products":[{"vendor":"advantech_b\\+b_smartworx","product":"mesr901_firmware"}],"references":[{"url":"https://ics-cert.us-cert.gov/advisories/ICSA-17-122-03","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","US Government Resource"]},{"url":"http://www.securityfocus.com/bid/98257","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2017-7909"},{"url":"https://github.com/advisories/GHSA-63p9-9p5p-v46f"}],"sources":{"cve":[{"id":"CVE-2017-7909","description":"A Use of Client-Side Authentication issue was discovered in Advantech B+B SmartWorx MESR901 firmware versions 1.5.2 and prior. The web interface uses JavaScript to check client authentication and redirect unauthorized users. Attackers may intercept requests and bypass authentication to access restricted web pages.","status":"published","published":"2017-05-06T00:00:00Z","modified":"2024-08-05T16:19:29.487Z","cwes":["CWE-603"],"updated_at":"2026-11-02T14:33:20.843976Z"}],"euvd":[{"id":"EUVD-2017-16880","description":"A Use of Client-Side Authentication issue was discovered in Advantech B+B SmartWorx MESR901 firmware versions 1.5.2 and prior. The web interface uses JavaScript to check client authentication and redirect unauthorized users. Attackers may intercept requests and bypass authentication to access restricted web pages.","status":"published","published":"2017-05-06T00:00:00Z","modified":"2024-08-05T16:19:29Z","updated_at":"2026-11-03T02:39:06.470138Z"}],"ghsa":[{"id":"GHSA-63p9-9p5p-v46f","title":"A Use of Client-Side Authentication issue was discovered in Advantech B+B SmartWorx MESR901...","description":"A Use of Client-Side Authentication issue was discovered in Advantech B+B SmartWorx MESR901 firmware versions 1.5.2 and prior. The web interface uses JavaScript to check client authentication and redirect unauthorized users. Attackers may intercept requests and bypass authentication to access restricted web pages.","status":"published","published":"2022-05-13T01:36:16Z","modified":"2025-04-20T03:37:17Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-287","CWE-603"],"updated_at":"2026-11-02T15:01:45.195531Z"}],"nvd":[{"id":"CVE-2017-7909","description":"A Use of Client-Side Authentication issue was discovered in Advantech B+B SmartWorx MESR901 firmware versions 1.5.2 and prior. The web interface uses JavaScript to check client authentication and redirect unauthorized users. Attackers may intercept requests and bypass authentication to access restricted web pages.","status":"published","published":"2017-05-06T00:29:00.273Z","modified":"2026-06-17T01:25:26.513Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-603","CWE-287"],"updated_at":"2026-11-02T14:03:47.848196Z"}]}}