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High · 7.5 CVE-2021-47741 EUVD-2025-206085GHSA-chph-r4jm-2932

ZBL EPON ONU Broadband Router V100R001 Privilege Escalation via Configuration Endpoint

Published Dec 31, 2025 · Updated Jan 2, 2026 · Assigned by VulnCheck

Description

ZBL EPON ONU Broadband Router V100R001 contains a privilege escalation vulnerability that allows limited administrative users to elevate access by sending requests to configuration endpoints. Attackers can exploit the vulnerability by accessing the configuration backup or password page to disclose the super user password and gain additional privileged functionalities.

Affected products

VendorProductAffectedFixed
Zblchina ZBL EPON ONU Broadband Router 1.0 —

References