{"id":"CVE-2018-25143","aliases":["EUVD-2025-205326","GHSA-x8gg-ghxq-c254"],"status":"published","title":"Microhard Systems IPn4G 1.1.0 Backdoor Jailbreak via Microhard Sh Service","description":"Microhard Systems IPn4G 1.1.0 contains a service vulnerability that allows authenticated users to enable a restricted SSH shell with a default 'msshc' user. Attackers can exploit a custom 'ping' command in the NcFTP environment to escape the restricted shell and execute commands with root privileges.","severity":{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-08","score":0.00601,"percentile":0.49024,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-78"],"published":"2025-12-24T19:27:48Z","modified":"2026-06-17T01:54:48Z","products":[{"vendor":"microhard systems","product":"microhard systems 3g/4g cellular ethernet and serial gateway backdoor jailbreak"},{"vendor":"microhardcorp","product":"bullet-3g_firmware"},{"vendor":"microhardcorp","product":"bullet-lte_firmware"},{"vendor":"microhardcorp","product":"bulletplus_firmware"},{"vendor":"microhardcorp","product":"dragon-lte_firmware"},{"vendor":"microhardcorp","product":"ipn3gb_firmware"},{"vendor":"microhardcorp","product":"ipn3gii_firmware"},{"vendor":"microhardcorp","product":"ipn4g_firmware"},{"vendor":"microhardcorp","product":"ipn4gb_firmware"},{"vendor":"microhardcorp","product":"ipn4gii_firmware"},{"vendor":"microhardcorp","product":"vip4gb_firmware"},{"vendor":"microhardcorp","product":"vip4gb_wifi-n_firmware"}],"references":[{"url":"https://www.exploit-db.com/exploits/45041","tags":["exploit","Exploit"]},{"url":"http://www.microhardcorp.com","tags":["product","Product"]},{"url":"https://www.zeroscience.mk/en/vulnerabilities/ZSL-2018-5486.php","tags":["third-party-advisory","exploit","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-25143"},{"url":"https://github.com/advisories/GHSA-x8gg-ghxq-c254"}],"sources":{"cve":[{"id":"CVE-2018-25143","title":"Microhard Systems IPn4G 1.1.0 Backdoor Jailbreak via Microhard Sh Service","description":"Microhard Systems IPn4G 1.1.0 contains a service vulnerability that allows authenticated users to enable a restricted SSH shell with a default 'msshc' user. Attackers can exploit a custom 'ping' command in the NcFTP environment to escape the restricted shell and execute commands with root privileges.","status":"published","published":"2025-12-24T19:27:48.742Z","modified":"2025-12-24T20:25:48.441Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-78"],"updated_at":"2026-11-02T14:35:01.952568Z"}],"euvd":[{"id":"EUVD-2025-205326","description":"Microhard Systems IPn4G 1.1.0 contains a service vulnerability that allows authenticated users to enable a restricted SSH shell with a default 'msshc' user. Attackers can exploit a custom 'ping' command in the NcFTP environment to escape the restricted shell and execute commands with root privileges.","status":"published","published":"2025-12-24T19:27:48Z","modified":"2025-12-24T20:25:48Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T19:49:01.342725Z"}],"ghsa":[{"id":"GHSA-x8gg-ghxq-c254","title":"Microhard Systems IPn4G 1.1.0 contains a service vulnerability that allows authenticated users to...","description":"Microhard Systems IPn4G 1.1.0 contains a service vulnerability that allows authenticated users to enable a restricted SSH shell with a default 'msshc' user. Attackers can exploit a custom 'ping' command in the NcFTP environment to escape the restricted shell and execute commands with root privileges.","status":"published","published":"2025-12-24T21:30:31Z","modified":"2025-12-24T21:30:32Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-78"],"updated_at":"2026-11-02T15:05:22.018507Z"}],"nvd":[{"id":"CVE-2018-25143","description":"Microhard Systems IPn4G 1.1.0 contains a service vulnerability that allows authenticated users to enable a restricted SSH shell with a default 'msshc' user. Attackers can exploit a custom 'ping' command in the NcFTP environment to escape the restricted shell and execute commands with root privileges.","status":"published","published":"2025-12-24T20:15:48.59Z","modified":"2026-06-17T01:54:48.687Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-78"],"updated_at":"2026-11-02T14:05:01.494136Z"}]}}