CVE-2026-58147 PUBLISHED

Authorized remote code execution via password change functionality in T-Mobile 5G Box IDU routers

Assigner: CERT-PL
Reserved: 29.06.2026 Published: 16.09.2026 Updated: 16.09.2026

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

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
CVSS Score: 9.3

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Adjacent	Confidentiality	High	Confidentiality	High
Attack Complexity	Low	Integrity	High	Integrity	High
Attack Requirements	None	Availability	High	Availability	High
Privileges Required	High
User Interaction	None

CVSS 4.0

Product Status

Vendor	WNC
Product	T-Mobile 5G Box IDU
Versions	Default: unaffected affected from 0 to 1.1.0.651412 (excl.)

Credits

Patryk Bogdan finder
Adam Borczyk finder

References

https://cert.pl/posts/2026/09/CVE-2026-40854

Problem Types

CWE-78 Improper neutralization of special elements used in an OS command ('OS command injection') CWE

Impacts

CAPEC-88 OS Command Injection