Stack-Based Buffer Overflow in Tenda W20E Router
CVE-2026-19824

8.7HIGH

Key Information:

Vendor: Tenda
Status: W20e
Vendor: CVE Published:; 14 August 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-19824?

A vulnerability has been discovered in the Tenda W20E router that allows for a stack-based buffer overflow through the ipMacBindListStore function in the /goform/addIpMacBind file. By manipulating the IPMacBindRule argument, an attacker can exploit this weakness remotely, potentially leading to unauthorized access or execution of arbitrary code. The exploit code has been made public, emphasizing the urgency for users to update their devices and apply necessary security measures.

Affected Version(s)

W20E 15.11.0.6(1068_1546_841)_CN_TDC

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-19824 - Proof of Concept