CVE-2018-25144 Microhard Systems IPn4G 1.1.0 Arbitrary File Access via Undocumented System Editor

High 8.7 Published 24 Dec 2025 Updated 2 Feb 2026

Authenticated attackers can read, modify, or delete arbitrary files on Microhard Systems IPn4G gateways via unsanitized parameters in the hidden system editor.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2018-25144?

CVE-2018-25144 is a high-severity path traversal vulnerability in Microhard Systems 3G/4G Cellular Ethernet and Serial Gateway Arbitrary File Attacks, published on 24 Dec 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Microhard Systems IPn4G 1.1.0 contains an authentication bypass vulnerability in the hidden system-editor.sh script that allows authenticated attackers to read, modify, or delete arbitrary files. Attackers can exploit unsanitized 'path', 'savefile', 'edit', and 'delfile' parameters to perform unauthorized file system modifications through GET and POST requests.

Weakness: CWE-22

Which versions are affected by CVE-2018-25144?

It affects 11 products.

Products include Microhardcorp Bullet-3g Firmware, Microhardcorp Bullet-Lte Firmware, Microhardcorp Bulletplus Firmware, Microhardcorp Dragon-Lte Firmware, Microhardcorp Ipn3gb Firmware, Microhardcorp Ipn3gii Firmware and 5 more.

How do I fix CVE-2018-25144?

No fix has been published for CVE-2018-25144 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2018-25144 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2018-25144 exists.

Sources

Also known as GHSA-gpch-6qpg-rp8g.