---
id: CVE-2025-45422
title: >-
  Incorrect access control in Proximus b-box v8c.725A allows authenticated
  attackers to bypass normal restrictions and make arbitrary changes to port
  forwarding rules.
summary: >-
  Incorrect access control in Proximus b-box v8c.725A allows authenticated
  attackers to bypass normal restrictions and make arbitrary changes to port
  forwarding rules.
severity: high
cvss: 8.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N'
cwe:
  - CWE-284
published: '2026-07-09'
updated: '2026-10-13'
sourceUpdated: '2026-10-13T10:10:00.193'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-45422'
references:
  - url: 'http://b-box.com'
    label: cve@mitre.org
  - url: 'http://proximus.com'
    label: cve@mitre.org
  - url: 'https://github.com/Cedrico03/CVE-2025-45422---Bbox'
    label: cve@mitre.org
  - url: >-
      https://nvd.nist.gov/vuln-metrics/cvss/v3-calculator?vector=AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:H/RL:U/RC:C/CR:H/IR:H/AR:H/MAV:N/MAC:L/MPR:N/MUI:N/MS:C/MC:H/MI:H/MA:H&version=3.1
    label: cve@mitre.org
tags:
  - nvd
  - exploit-available
epss: 0.00448
epssPercentile: 0.37065
exploits:
  github: 1
  githubRepos:
    - 'https://github.com/Cedrico03/CVE-2025-45422---Bbox'
  checkedAt: '2026-10-13T10:22:37.869Z'
exploitAvailable: true
ingestedAt: '2026-10-13T10:22:03.546Z'
---

## Overview

Incorrect access control in Proximus b-box v8c.725A allows authenticated attackers to bypass normal restrictions and make arbitrary changes to port forwarding rules.

## Remediation

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