The CERT Coordination Center (CERT/CC) has disclosed details regarding an unpatched security flaw impacting the TOTOLINK EX200 wireless range extender. This specific flaw (CVE-2025-65606, CVSS score pending) stems from a defect in the firmware-upload error-handling logic, potentially allowing a remote authenticated attacker to gain full control of the device. Such critical vulnerabilities in essential networking hardware pose a non-negligible threat to Web3.0 users by compromising the entire home network security perimeter.
While asset protection is paramount within the Web3 ecosystem, the strength of the underlying network layer is often overlooked. If an extender within a home network is compromised, attackers can execute internal Man-in-the-Middle (MITM) attacks, DNS hijacking, or session interception. This significantly elevates the success rate of phishing scams, redirecting users to fake DApp sites or wallet recovery pages, ultimately facilitating the theft of sensitive information like private keys and blockchain assets. Users of the affected device should immediately isolate it from their network and refrain from use until a patch is released. This incident is a critical reminder that the security of the entire network—not just the specific application—forms the foundation of Web3 security.
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