CVE-2025-51452

In TOTOLINK A7000R firmware 9.1.0u.6115_B20201022, an attacker can bypass login by sending a specific request through formLoginAuth.htm

Critical · published August 13, 2025

CVSS v3.1
9.8
EPSS
0%
Percentile
31.7
In the wild
Unconfirmed
What it is

🚨 A crafty login bypass in TOTOLINK A7000R lets attackers skip right past authentication with a simple request! 🔥 Think of it like a restaurant where anyone can just walk through the kitchen door without showing a reservation — they can access anything on the menu without any security checks! This could lead to unauthorized access to your device, allowing attackers to change settings, intercept network traffic, or even control other connected devices. The consequences could be absolutely devastating for your home network!

Put simply

Think of it like a restaurant where anyone can just walk through the kitchen door without showing a reservation — they can access anything on the menu without any security checks! In firmware version 9.1.0u.6115_B20201022, an attacker can bypass login controls by sending a specifically crafted request to the formLoginAuth.htm endpoint, granting them unauthorized access.

What to do

This could lead to unauthorized access to your device, allowing attackers to change settings, intercept network traffic, or even control other connected devices. The consequences could be absolutely devastating for your home network! Make sure to patch your firmware immediately to the latest version and regularly monitor for unauthorized requests. Change default credentials and consider enhancing your network security configurations for extra protection. You've got this! By taking these steps, you'll be a security hero 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
0.00388 · 31.7th percentile
Published
2025-08-13T00:00Z
EPSS history
Timeline
  • 13 AUG 00:00Z
    In TOTOLINK A7000R firmware 9.1.0u.6115_B20201022, an attacker can bypass login by sending a specific request through formLoginAuth.htm
    cvelistv5