---
id: CVE-2026-75168
title: >-
  An issue in the ugw-editfile method of /cgi-bin/wwwugw.cgi in MBS-Solutions
  X-Serie Gateway firmware V6_00_05 allows a remote authenticated user with the
  low-privileged Standard role to write arbitrary content to files within
  /uxx/config…
summary: >-
  An issue in the ugw-editfile method of /cgi-bin/wwwugw.cgi in MBS-Solutions
  X-Serie Gateway firmware V6_00_05 allows a remote authenticated user with the
  low-privileged Standard role to write arbitrary content to files within
  /uxx/config…
severity: medium
cvss: 6.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L'
cwe:
  - CWE-284
published: '2026-09-04'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T19:42:20.313'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-75168'
references:
  - url: 'https://en.mbs-solutions.de/mbs'
    label: cve@mitre.org
  - url: 'https://en.mbs-solutions.de/xserie'
    label: cve@mitre.org
  - url: >-
      https://github.com/SilviaMun/vulnerability-research/tree/main/CVE-2026-75168
    label: cve@mitre.org
tags:
  - nvd
epss: 0.00418
epssPercentile: 0.33407
ingestedAt: '2026-09-08T20:10:03.166Z'
---

## Overview

An issue in the ugw-editfile method of /cgi-bin/wwwugw.cgi in MBS-Solutions X-Serie Gateway firmware V6_00_05 allows a remote authenticated user with the low-privileged Standard role to write arbitrary content to files within /uxx/config/ and /ugw/config/.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.