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Researchers Find Persistent Backdoor in Zbtlink Routers

medduo_decipherPublished 2026-08-05

<p class="wp-block-paragraph">Researchers at VulnCheck have identified a persistent, previously undisclosed backdoor embedded in the firmware of a wide range of Chinese-manufactured routers. The vulnerability, named EndlessDoors by the research team, affects more than 20 specific models of networking hardware sold globally under both the Zbtlink and Wiflyer brand names.</p>

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Indicators of compromise

Original source: https://decipher.sc/2026/08/05/researchers-find-persistent-backdoor-in-zbtlink-routers/