Vulnerability · 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.
Published Dec 24, 2025 · catalog updated Dec 24, 2025 · Microhard Systems Microhard Systems 3G/4G Cellular Ethernet and Serial Gateway Backdoor Jailbreak
Last checked Nov 2, 2026. A connected source was read within the last 7 days.
Check if you run it
No confirmed exploitation is on record for CVE-2018-25143. EPSS is 0.60%. Act only if a listed version of Microhard Systems Microhard Systems 3G/4G Cellular Ethernet and Serial Gateway Backdoor Jailbreak is installed.
Gaps on this record
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
- Severity
- High8.7
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.60%
- Remediation
- Vendor / distro source
- Affected products
- vendor Microhard Systems Microhard Systems 3G/4G Cellular Ethernet and Serial Gateway Backdoor Jailbreak IPn4G 1.1.0 build 1098
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.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- vendor Microhard Systems Microhard Systems 3G/4G Cellular Ethernet and Serial Gateway Backdoor Jailbreak IPn4G 1.1.0 build 1098IPn4G 1.1.0 build 1098
How to fix CVE-2018-25143
No stored fix
No vendor fix text is stored. Use the linked advisory before you change production.
Version check
Seen in IPn4G 1.1.0 build 1098
Advisory
Open the cve_org record and follow its fix.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2018-25143. EPSS is 0.60%. Act only if a listed version of Microhard Systems Microhard Systems 3G/4G Cellular Ethernet and Serial Gateway Backdoor Jailbreak is installed.
Which versions are affected?
Compare what you have installed with Microhard Systems Microhard Systems 3G/4G Cellular Ethernet and Serial Gateway Backdoor Jailbreak IPn4G 1.1.0 build 1098 IPn4G 1.1.0 build 1098. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
No weakness class is stored. EPSS 0.60%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Dec 24, 2025 · EUVD
Detected
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.
Dec 24, 2025 · EUVD
Updated
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.
Sources
- CVE.orgVulnerability recordCVE-2018-25143
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2018-25143
30-day exploitation probability 0.60%
first.org - EUVDVulnerability recordEUVD-2025-205326
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
euvd.enisa.europa.eu
References
Freshness
Last verified in this catalog Nov 2, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.
- FIRST EPSSNov 2, 2026
- CVE.orgNov 2, 2026
- EUVDNov 1, 2026