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9.3

T-Mobile 5G Box IDU routers let signed‑in users run commands

CVE-2026-58147 · published 27 days ago
Summary

The password‑change page on the T‑Mobile 5G Box IDU router does not properly filter its input, so a user who has already logged in can insert special code that runs with full system rights. This could let an attacker take control of the router and the network it connects to. Update the device to firmware version 1.1.0.651412 as soon as possible to close the gap.

What to do
  • Update wnc t-mobile 5g box idu to version 1.1.0.651412 or later.
Affected software
VendorProductAffected versions
wnc t-mobile 5g box idu < 1.1.0.651412
Original advisory text
Authorized remote code execution via password change functionality in T-Mobile 5G Box IDU routers
WNC T-Mobile 5G Box IDU router contains an OS command injection vulnerability in the portal.cgi component's password change functionality. The application improperly neutralizes special elements in the http_passwd_hidden and http_passwdConfirm_hidden parameters, allowing an authenticated attacker to execute arbitrary commands on the underlying operating system with root privileges.This issue has been fixed in firmware version 1.1.0.651412
References
Fix within
Internet-facing 14 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker full control
Severity
9.3 Critical
Exploitation
2% chance of attack within 30 days
Type
CWE-78OS Command Injection
Timeline
Published16 Sep 2026
Updated8 Oct 2026
First seen16 Sep 2026
Sources
CVE-2026-58147 · NVD
CVE-2026-58147 · MITRE
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