CVE-2020-28899

The Web CGI Script on ZyXEL LTE4506-M606 V1.00(ABDO.2)C0 devices does not require authentication, which allows remote unauthenticated attackers (via crafted…

published March 16, 2021

CVSS
—
EPSS
2%
Percentile
76.9
In the wild
Unconfirmed
What it is

🚨 No login required for full access! A crafty attacker could exploit a flaw in the ZyXEL LTE4506-M606 router, using just JSON data to control everything from passwords to IP settings! 🔥 Think of it like a hotel with a front desk that never checks IDs. Anyone can just walk in, swap out the guest’s room key, and start sending messages as if they own the place! An intruder could waltz in and change your Wi-Fi password, read all messages, or even alter IP routing to access sensitive devices on your internal network! This level of unauthorized access could lead to a complete takeover of your home network, leaving your personal information vulnerable to anyone with bad intentions.

Put simply

Think of it like a hotel with a front desk that never checks IDs. Anyone can just walk in, swap out the guest’s room key, and start sending messages as if they own the place! This vulnerability allows remote attackers to access the ZyXEL LTE4506-M606 router without authentication by sending crafted JSON action data to the CGI script located at /cgi-bin/gui.cgi, enabling them to perform any administrative action.

What to do

An intruder could waltz in and change your Wi-Fi password, read all messages, or even alter IP routing to access sensitive devices on your internal network! This level of unauthorized access could lead to a complete takeover of your home network, leaving your personal information vulnerable to anyone with bad intentions. To secure your device, it's crucial to disable remote management features if they are enabled. Additionally, patch your ZyXEL LTE4506-M606 router to the latest firmware version provided by ZyXEL to close this vulnerability. Regularly check for firmware updates to keep your network safe. You've got this! Just follow these steps, and you'll have your router locked down in no time! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01690 · 76.9th percentile
Published
2021-03-16T16:17Z
EPSS history
Timeline
  • 16 MAR 16:17Z
    The Web CGI Script on ZyXEL LTE4506-M606 V1.00(ABDO.2)C0 devices does not require authentication, which allows remote unauthenticated attackers (via crafted…
    cvelistv5