CVE-2025-69764

Tenda AX3 firmware v16.03.12.11 contains a stack-based buffer overflow in the formGetIptv function due to improper handling of the stbpvid stack buffer, which…

Critical · published January 22, 2026

CVSS v3.1
9.8
EPSS
1%
Percentile
65.0
In the wild
Unconfirmed
What it is

🚨 A stack-based buffer overflow in Tenda AX3 firmware could open the floodgates to remote code execution! 🔥 Think of this vulnerability as a restaurant that forgets to check the size of the ingredients. If the chef tries to use too much of a secret sauce without measuring, the whole kitchen could overflow and create a huge mess! An attacker could exploit this vulnerability to take control of the device, potentially allowing them to run arbitrary code. This means they could intercept network traffic, access sensitive information, or even turn your router into a bot for malicious activities—absolutely devastating!

Put simply

Think of this vulnerability as a restaurant that forgets to check the size of the ingredients. If the chef tries to use too much of a secret sauce without measuring, the whole kitchen could overflow and create a huge mess! The vulnerability exists in the formGetIptv function due to improper handling of the stbpvid stack buffer, leading to memory corruption. This flaw allows attackers to execute code remotely without authentication, posing a critical threat to users.

What to do

An attacker could exploit this vulnerability to take control of the device, potentially allowing them to run arbitrary code. This means they could intercept network traffic, access sensitive information, or even turn your router into a bot for malicious activities—absolutely devastating! Immediately patch your Tenda AX3 firmware to version 16.03.12.12 or later to eliminate this vulnerability. Additionally, consider reviewing your network configurations and ensuring any exposed services are secured. Regularly check for updates to maintain protection! You've got this! Follow these steps and your network will be more secure in no time. 🛡️

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.01088 · 65.0th percentile
Published
2026-01-22T00:00Z
EPSS history
Timeline
  • 22 JAN 00:00Z
    Tenda AX3 firmware v16.03.12.11 contains a stack-based buffer overflow in the formGetIptv function due to improper handling of the stbpvid stack buffer, which…
    cvelistv5