CVE-2026-58146
Critical
Description
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
SeverityCritical
CVSS9.4
Exploit probability—
ProductT-Mobile 5G Box IDU
PublishedSep 16, 2026
First seenSep 16, 2026
Weakness typeCWE-78OS command injection
How to fix
Update
- WNC T-Mobile 5G Box IDU1.1.0.651412 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| WNC T-Mobile 5G Box IDU | v < 1.1.0.651412 | 1.1.0.651412 |
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