Stack-Based Buffer Overflow in Tenda 4G300 Router

CVE-2026-7470

What is CVE-2026-7470?

A vulnerability exists in the Tenda 4G300 router specifically in the function sub_427C3C within the SafeMacFilter module. The flaw stems from improper handling of input data, which allows an attacker to exploit the stack, potentially leading to unauthorized memory access and execution of arbitrary code. This can be executed remotely, posing a serious risk to the security of affected devices. Users are advised to apply necessary mitigations and monitor for any unusual behavior.

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