{"id":"CVE-2016-5791","aliases":["EUVD-2016-6726","GHSA-rfqg-cc66-j4h7"],"status":"published","title":"An Improper Authentication issue was discovered in JanTek JTC-200, all versions. The improper...","description":"An Improper Authentication issue was discovered in JanTek JTC-200, all versions. The improper authentication could provide an undocumented BusyBox Linux shell accessible over the TELNET service without any authentication.","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":0.02392,"percentile":0.84081,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-287"],"published":"2017-10-13T02:00:00Z","modified":"2026-06-17T00:50:02Z","products":[{"vendor":"jantek","product":"jtc-200_firmware"}],"references":[{"url":"https://ics-cert.us-cert.gov/advisories/ICSA-17-283-02","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-5791"},{"url":"https://github.com/advisories/GHSA-rfqg-cc66-j4h7"}],"sources":{"cve":[{"id":"CVE-2016-5791","description":"An Improper Authentication issue was discovered in JanTek JTC-200, all versions. The improper authentication could provide an undocumented BusyBox Linux shell accessible over the TELNET service without any authentication.","status":"published","published":"2017-10-13T02:00:00Z","modified":"2024-08-06T01:15:10.672Z","updated_at":"2026-11-02T14:33:30.359814Z"}],"euvd":[{"id":"EUVD-2016-6726","description":"An Improper Authentication issue was discovered in JanTek JTC-200, all versions. The improper authentication could provide an undocumented BusyBox Linux shell accessible over the TELNET service without any authentication.","status":"published","published":"2017-10-13T02:00:00Z","modified":"2024-08-06T01:15:10Z","updated_at":"2026-11-03T02:22:41.580609Z"}],"ghsa":[{"id":"GHSA-rfqg-cc66-j4h7","title":"An Improper Authentication issue was discovered in JanTek JTC-200, all versions. The improper...","description":"An Improper Authentication issue was discovered in JanTek JTC-200, all versions. The improper authentication could provide an undocumented BusyBox Linux shell accessible over the TELNET service without any authentication.","status":"published","published":"2022-05-17T00:28:41Z","modified":"2023-02-03T05:01:47Z","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"],"updated_at":"2026-11-02T14:53:02.192117Z"}],"nvd":[{"id":"CVE-2016-5791","description":"An Improper Authentication issue was discovered in JanTek JTC-200, all versions. The improper authentication could provide an undocumented BusyBox Linux shell accessible over the TELNET service without any authentication.","status":"published","published":"2017-10-13T03:29:00.24Z","modified":"2026-06-17T00:50:02.687Z","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":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:03:39.176887Z"}]}}