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CVE PROGRAM SOURCE RECORD8.4 High

CVE-2026-40857

CSRF token bypass in T-Mobile 5G Box IDU routers

Description

WNC T-Mobile 5G Box IDU router contains a cross-site request forgery (CSRF) vulnerability in the portal.cgi component. The anti-CSRF mechanism fails to validate the csrf_token_value parameter, accepting any arbitrary value as valid. This allows a remote attacker to perform unauthorized actions on the device by tricking an authenticated user into visiting a malicious website.This issue has been fixed in firmware version 1.1.0.651412

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

WNC T-Mobile 5G Box IDU

Default version status: unaffected

  • 0 to < 1.1.0.651412affected

References