---
id: CVE-2026-58146
title: >-
  WNC T-Mobile 5G Box IDU router is vulnerable to OS command injection
  vulnerability
summary: >-
  WNC T-Mobile 5G Box IDU router is vulnerable to OS command injection
  vulnerability. The vulnerability exists within the /cgi-bin/portal.cgi
  endpoint, specifically through the cli_cookie POST parameter. The cli_cookie
  parameter value is d…
severity: critical
cvss: 9.4
cvssVector: 'CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H'
cwe:
  - CWE-78
vendor: WNC
product: T-Mobile 5G Box IDU
affected:
  - t-mobile_5g_box_idu < 1.1.0.651412
published: '2026-09-16'
updated: '2026-09-16'
sourceUpdated: '2026-09-16T19:14:25.980'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-58146'
references:
  - url: 'https://cert.pl/posts/2026/09/CVE-2026-40854'
    label: cvd@cert.pl
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-16T15:58:33.437930Z'
cvssSource: cna
ingestedAt: '2026-09-16T11:54:38.961Z'
epss: 0.02889
epssPercentile: 0.86313
---

## Overview

WNC T-Mobile 5G Box IDU router is vulnerable to OS command injection vulnerability. The vulnerability exists within the /cgi-bin/portal.cgi endpoint, specifically through the cli_cookie POST parameter. The cli_cookie parameter value is directly concatenated into a find command string without proper sanitization. This allows a remote, unauthenticated attacker to inject and execute arbitrary shell commands as root on the underlying operating system.

This issue has been fixed in firmware version 1.1.0.651412

## Remediation

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