WNC T-Mobile 5G Box IDU router is vulnerable to improper access control. The vulnerability exists in the wnc_maccheck.cgi endpoint, which is accessible without authentication. It allows a remote attacker to retrieve sensitive configuration data, including the administrator web password, WiFi passphrase, and technical device information.This issue has been fixed in firmware versionĀ 1.1.0.651412

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Fixes

Solution

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Workaround

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History

Wed, 16 Sep 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 16 Sep 2026 11:45:00 +0000

Type Values Removed Values Added
Description WNC T-Mobile 5G Box IDU router is vulnerable to improper access control. The vulnerability exists in the wnc_maccheck.cgi endpoint, which is accessible without authentication. It allows a remote attacker to retrieve sensitive configuration data, including the administrator web password, WiFi passphrase, and technical device information.This issue has been fixed in firmware versionĀ 1.1.0.651412
Title Config disclosure in T-Mobile 5G Box IDU routers
First Time appeared Wnc
Wnc t-mobile 5g Box Idu
Weaknesses CWE-306
CPEs cpe:2.3:a:wnc:t-mobile_5g_box_idu:*:*:*:*:*:*:*:*
Vendors & Products Wnc
Wnc t-mobile 5g Box Idu
References
Metrics cvssV4_0

{'score': 7.1, 'vector': 'CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: CERT-PL

Published:

Updated: 2026-09-16T16:01:34.194Z

Reserved: 2026-04-15T11:10:34.850Z

Link: CVE-2026-40856

cve-icon Vulnrichment

Updated: 2026-09-16T16:01:29.263Z

cve-icon NVD

Status : Received

Published: 2026-09-16T12:17:03.790

Modified: 2026-09-16T17:17:18.133

Link: CVE-2026-40856

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses