xploitzone.com • 2h
Zbtlink ENDLESSDOORS Supply Chain Compromise CVE-2026-66747
Research has uncovered "ENDLESSDOORS," a critical supply chain compromise affecting approximately 20 Zbtlink router models distributed globally via Amazon, AliExpress, and Alibaba. Tracked as CVE-2026-66747, the vulnerability consists of a factory-installed firmware backdoor that grants remote attackers unauthenticated root shell access to the device. Because the backdoor is embedded during the manufacturing process, it provides high persistence and bypasses standard user configuration security. This allows for full administrative control over the device, enabling total network traffic interception and facilitating lateral movement within the local network environment.