RCE in Microhardcorp Bullet-3g
CVE-2018-25143
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.
Vulnerability class: Command Injection (OS Command Injection)
EPSS: 0.005 (41.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Microhardcorp Bullet-3g
- Microhardcorp Bullet-3g_firmware — versions 1.2.0
- Microhardcorp Bullet-lte
- Microhardcorp Bullet-lte_firmware — versions 1.2.0
- Microhardcorp Bulletplus
- Microhardcorp Bulletplus_firmware — versions 1.3.0
- Microhardcorp Dragon-lte
- Microhardcorp Dragon-lte_firmware — versions 1.1.0
- Microhardcorp Ipn3gb
- Microhardcorp Ipn3gb_firmware — versions 2.2.0
Weakness classification (CWE)
References
- disclosure@vulncheck.com (Exploit, exploit)
- disclosure@vulncheck.com (Product, product)
- disclosure@vulncheck.com (Exploit, Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2018-25143?
- CVE-2018-25143 is a high-severity vulnerability in Microhardcorp Bullet-3g, classified under OS Command Injection. CVSS score: 8.8/10. Published 2025-12-24.
- How severe is CVE-2018-25143?
- High severity. CVSS v3 base score is 8.8 out of 10.