F453 Vulnerability CVE Number: CVE-2026-3378 Vendor: Tenda Product: F453 Version: V1.0.0.3 Vulnerability: Buffer Overflow Firmware Download: Link Author: Li Tengzheng Descriptions An overflow vulnerability was found in , specifically in the function. It reads a user-provided parameter without performing any length check on the variable before passing it to the function. This can lead to a stack-based buffer overflow in the variable. Proof of Concept (PoC) Impact An attacker can exploit this vulnerability to perform a Denial of Service (DoS) attack or execute remote code by requesting the page with a specially crafted payload. Overcome The screenshot shows an attempt to connect to the server with a large payload, resulting in connection failures and a Segmentation Fault error.