CVE-2024-39273CWE-306

A firmware update vulnerability exists in the fw_check.sh functionality of Wavlink AC3000 M33A8.V5030.210505

Critical · published January 14, 2025

CVSS v3.1
9.0
EPSS
1%
Percentile
65.8
In the wild
Unconfirmed
What it is

🚨 A single malicious HTTP request could trigger a critical firmware update vulnerability in Wavlink AC3000 M33A8 devices! 🔥 Think of your Wi-Fi router like a restaurant kitchen. If an attacker can sneak in and swap out the recipe for a dish, they can change the entire menu! This vulnerability lets them do just that with your router's firmware. An attacker could exploit this vulnerability to gain full control over the device, potentially allowing them to intercept your internet traffic, install malicious firmware, or even hijack your network! This isn't just a minor inconvenience — it could lead to a complete compromise of your network security.

Put simply

Think of your Wi-Fi router like a restaurant kitchen. If an attacker can sneak in and swap out the recipe for a dish, they can change the entire menu! This vulnerability lets them do just that with your router's firmware. This vulnerability exists in the fw_check.sh functionality and allows attackers to send a specially crafted HTTP request to trigger arbitrary firmware updates through a man-in-the-middle attack.

What to do

An attacker could exploit this vulnerability to gain full control over the device, potentially allowing them to intercept your internet traffic, install malicious firmware, or even hijack your network! This isn't just a minor inconvenience — it could lead to a complete compromise of your network security. Immediately update your Wavlink AC3000 M33A8 device to the latest firmware version to close this critical gap. Additionally, monitor network traffic for suspicious activity and consider implementing additional security measures to safeguard against man-in-the-middle attacks. You've got this! Follow these steps, and your network will be back on track in no time! 🛡️

The record
Technical detail
CVSS v3.1
9.0 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.01116 · 65.8th percentile
Weakness
CWE-306 · Missing Authentication for Critical Function
Published
2025-01-14T14:21Z
EPSS history
Timeline
  • 14 JAN 14:21Z
    A firmware update vulnerability exists in the fw_check.sh functionality of Wavlink AC3000 M33A8.V5030.210505
    cvelistv5