CRITICAL 9.4 NVD

CVE-2026-58146

WNC T-Mobile 5G Box IDU router is vulnerable to OS command injection vulnerability. The vulnerability exists within the /cgi-bin/portal.cgi endpoint, specifical

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

References

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

Published: 2026-09-16 · Source: NVD · Feed updated: 2026-09-16

This critical severity vulnerability with a CVSS score of 9.4 was published on 2026-09-16 via NVD.

Risk Timeline

CVE Disclosed2026-09-16 · -1 days ago

Remediation Resources

Official Advisory

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

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