CVE-2026-58146
Unauthorized remote code execution in T-Mobile 5G Box IDU routers
- State
- Published
- Severity
- 9.4 Critical
- Published
- Sep 16, 2026
- Updated
- Sep 16, 2026
- Reserved
- Jun 29, 2026
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
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 9.4 Critical | CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H | CERT-PL |
Weaknesses
- CWE-78 Improper neutralization of special elements used in an OS command ('OS command injection')
Affected Products
| Product | Versions |
|---|---|
T-Mobile 5G Box IDUWNC |
|
References
- https://cert.pl/posts/2026/09/CVE-2026-40854third-party-advisory
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