# CVE-2026-58147: WNC T-Mobile 5G Box IDU OS command injection in password change

Source: https://junglewise.ai/threats/cve-2026-58147-wnc-t-mobile-5g-box-idu-os-command-injection-in-password-change  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-16. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-58147 · Severity: info · Published 2026-09-16

The WNC T-Mobile 5G Box IDU is a 5G router used by T-Mobile customers to provide home broadband connectivity. An authenticated attacker can inject arbitrary operating system commands through the password change functionality, gaining root access to the device and allowing them to modify settings, steal customer data, or disrupt service.

Technologies: [WNC T-Mobile 5G Box IDU](https://junglewise.ai/threats/technologies/t-mobile-5g-box-idu). Vendors: [WNC](https://junglewise.ai/threats/vendors/wnc).

## Quick answers

**Is CVE-2026-58147 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-58147 being exploited in the wild.

**How severe is CVE-2026-58147?** Informational severity, published 16 September 2026.

**Which products and versions are affected?** WNC T-Mobile 5G Box IDU before 1.1.0.651412.

**Is there a fix for CVE-2026-58147?** A patch was published on 2026-09-16: Firmware version 1.1.0.651412 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-58147 attacked?** It is attacked over the network, in device firmware.

**Am I affected by CVE-2026-58147?** Check whether you run WNC T-Mobile 5G Box IDU at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

This is an OS command injection vulnerability (CWE-78) in the portal.cgi component's password change functionality. The application fails to properly sanitize special shell characters in the http_passwd_hidden and http_passwdConfirm_hidden parameters before passing them to a system command. An authenticated attacker can exploit this to inject arbitrary shell commands and execute them with root privileges on the underlying Linux OS. The vulnerability requires authentication to exploit, and has been patched in firmware version 1.1.0.651412 and later.

## Affected products

- WNC T-Mobile 5G Box IDU before 1.1.0.651412

## Timeline

- 2026-09-16: disclosed
- 2026-09-16: patched: Firmware version 1.1.0.651412

## References

- [https://cert.pl/posts/2026/09/CVE-2026-40854](https://cert.pl/posts/2026/09/CVE-2026-40854)

## Related threats

- [WNC T-Mobile 5G Box IDU OS command injection in portal.cgi](https://junglewise.ai/threats/cve-2026-58146-wnc-t-mobile-5g-box-idu-os-command-injection-in-portal-cgi)
- [WNC T-Mobile 5G Box IDU CSRF in portal.cgi](https://junglewise.ai/threats/cve-2026-40857-wnc-t-mobile-5g-box-idu-csrf-in-portal-cgi)
- [WNC T-Mobile 5G Box IDU improper access control in wnc_maccheck.cgi](https://junglewise.ai/threats/cve-2026-40856-wnc-t-mobile-5g-box-idu-improper-access-control-in-wnc-maccheck)
- [WNC T-Mobile 5G Box IDU command injection in ping functionality](https://junglewise.ai/threats/cve-2026-40855-wnc-t-mobile-5g-box-idu-command-injection-in-ping-functionality)
- [WNC T-Mobile 5G Box IDU authentication bypass in portal.cgi](https://junglewise.ai/threats/cve-2026-40854-wnc-t-mobile-5g-box-idu-authentication-bypass-in-portal-cgi)