F453 Vulnerability CVE Number: CVE-2026-3380 Vendor: Tenda Product: F453 Version: V1.0.0.3 Vulnerability: Buffer Overflow Firmware Download: https://www.tenda.com.cn/material/show/1599 Author: Li Tengzheng Descriptions We found an overflow vulnerability in : In function, it reads in a user-provided parameter , and the variable is passed to the function without any length check, which may overflow the stack-based buffer . As a result, by requesting the page, an attacker can easily execute a denial of service attack or remote code execution. Proof of Concept (PoC) Overcome Error messages indicate server crashes and unsuccessful connections due to the buffer overflow exploit.