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CVE PROGRAM SOURCE RECORD9.3 Critical

CVE-2026-40855

Command Injection in T-Mobile 5G Box IDU router via ping functionality

Description

WNC T-Mobile 5G Box IDU router is vulnerable to a command injection. The vulnerability exists in the ping functionality within the /cgi-bin/portal.cgi endpoint, specifically affecting the ping_ip, ping_size, and ping_times POST parameters. The root cause is the failure to verify and sanitize user-supplied input before incorporating it into a system command. This allows an authenticated attacker to execute arbitrary commands on the shell and gain root access to the system.This issue has been fixed in firmware version 1.1.0.651412

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

WNC T-Mobile 5G Box IDU

Default version status: unaffected

  • 0 to < 1.1.0.651412affected

References