Vulnerability record · CVE-2026-58146 · published 16 September 2026

CVE-2026-58146: OS command injection vulnerability

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

9.4 CVSS 4.0 Critical EPSS 2.9% · top 13.6% CWE-78 · OS command injection Awaiting Analysis

9.4CVSS 4.0 base score

2.9%EPSS exploitation probability, 30 days

NoNot in CISA KEV

0Affected product versions listed by NVD

1References

16 Sep 2026Last modified by NVD

Description

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

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

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Source: NIST National Vulnerability Database (record CVE-2026-58146), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.