CVE-2018-25143: Microhardcorp Bullet-3g Firmware

High severity, CVSS 8.8. EPSS: 0.6% chance of exploitation in the next 30 days.

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.

Affected products

• Microhardcorp Bullet-3g Firmware: version 1.2.0 only
• Microhardcorp Bullet-Lte Firmware: version 1.2.0 only
• Microhardcorp Bulletplus Firmware: version 1.3.0 only
• Microhardcorp Dragon-Lte Firmware: version 1.1.0 only
• Microhardcorp IPN3GB Firmware: version 2.2.0 only
• Microhardcorp IPN3GII Firmware: version 1.2.0 only
• Microhardcorp IPN4G Firmware: version 1.1.0 only
• Microhardcorp IPN4GB Firmware: version 1.1.6 only; version 1.1.0 only
• Microhardcorp IPN4GII Firmware: version 1.2.0 only
• Microhardcorp VIP4GB Firmware: version 1.1.6 only
• Microhardcorp VIP4GB Wifi-N Firmware: version 1.1.6 only

Published 2025-12-24. Last modified 2026-06-17.