---
id: CVE-2026-75169
title: >-
  An arbitrary file upload vulnerability in /cgi-bin/ugwupload.cgi of
  MBS-Solutions X-Serie Gateway firmware V6_00_05 allows a remote authenticated
  user with Admin role to upload files with arbitrary content to hardcoded
  paths.
summary: >-
  An arbitrary file upload vulnerability in /cgi-bin/ugwupload.cgi of
  MBS-Solutions X-Serie Gateway firmware V6_00_05 allows a remote authenticated
  user with Admin role to upload files with arbitrary content to hardcoded
  paths.
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-434
published: '2026-09-04'
updated: '2026-09-09'
sourceUpdated: '2026-09-09T16:04:24.933'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-75169'
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-2026-75169
    label: cve@mitre.org
tags:
  - nvd
  - cve.org
epss: 0.00716
epssPercentile: 0.51689
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-08T14:08:31.870958Z'
ingestedAt: '2026-09-08T15:33:26.962Z'
---

## Overview

An arbitrary file upload vulnerability in /cgi-bin/ugwupload.cgi of MBS-Solutions X-Serie Gateway firmware V6_00_05 allows a remote authenticated user with Admin role to upload files with arbitrary content to hardcoded paths.

## Remediation

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