Unauthorized remote code execution in T-Mobile 5G Box IDU routers
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-78.
Summary
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
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA T-Mobile 5G Box IDU (WNC) Fixed in 1.1.0.651412
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
WNC T-Mobile 5G Box IDU 1.1.0.651412
6 records Highest priority Priority MEDIUM 4 MEDIUM, 2 LOW
Other records, highest priority first
- TI-2026-41865 Authorized remote code execution via password change functionality in T-Mobile 5G Box IDU routersPriority MEDIUM 45
- TI-2026-29512 Command Injection in T-Mobile 5G Box IDU router via ping functionalityPriority MEDIUM 45
- TI-2026-29511 Session auth bypass via cookie value in T-Mobile 5G Box IDU routersPriority MEDIUM 40
Timeline
- 2026-10-02 Threatist record created from CVE-2026-58146
- 2026-10-03 Alias added: GHSA-57h3-7px2-2q83
References
More WNC vulnerabilities
- TI-2026-41865 Authorized remote code execution via password change functionality in T-Mobile 5G Box IDU routers CVSS 4.0CRITICAL 9.3
- TI-2026-29512 Command Injection in T-Mobile 5G Box IDU router via ping functionality CVSS 4.0CRITICAL 9.3
- TI-2026-29511 Session auth bypass via cookie value in T-Mobile 5G Box IDU routers CVSS 4.0HIGH 8.7
- TI-2026-29514 CSRF token bypass in T-Mobile 5G Box IDU routers CVSS 4.0HIGH 8.4
- TI-2026-29513 Config disclosure in T-Mobile 5G Box IDU routers CVSS 4.0HIGH 7.1
Sources
- CVE-2026-58146 · CVE Program
- CVE-2026-58146 · NVD
- FIRST EPSS
- GHSA-57h3-7px2-2q83 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences