Cryptographic Key Management Vulnerability in Archer C6 by TP-Link

CVE-2026-89052

What is CVE-2026-89052?

A hardcoded cryptographic key management flaw exists in TP-Link's Archer C6 routers, stemming from the implementation of a universal cryptographic key shared across multiple devices. This weakness allows potential attackers to exploit encrypted configuration files or sensitive credential data, leading to the recovery of plaintext credentials. The resulting unauthorized access can compromise sensitive information, including critical administrative credentials, thereby posing significant security risks to users.

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