Security researchers have discovered ENDLESSDOORS, a critical remote access vulnerability affecting over 20 Zbtlink router models manufactured in China. This sophisticated backdoor enables unauthorized attackers to gain root-level access and execute arbitrary commands, while establishing persistent command-and-control communications at regular 35-second intervals. The vulnerability poses significant risks to home and business networks, potentially compromising sensitive data and network integrity. Users of affected devices are urged to investigate their router models and implement immediate security measures.

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