Vulnerabilities in Modern Routers Netgear, Linksys

Vulnerabilities in Modern Routers could allow hackers to hack and gain access to millions of Wi-Fi routers. One of the factors that makes them work is their ability to break up large chunks of data into smaller chunks, based on the network requirements at a particular time.

But these network plumbing features come with vulnerabilities that users can exploit to send you to malicious websites or tamper with devices connected to the network.

Mathy Vanhoef, the researcher, found several vulnerabilities, be it the way the specifications are implemented in the devices or the specifications themselves. These vulnerabilities put you at risk of a cyber attack. In just one day, one A cyber attack is performed almost every 39 seconds.

Vulnerabilities in Modern Routers

The router is affected by a number of known vulnerabilities. Even if a router receives a recent update, many security holes won’t even be fixed. What makes matters worse is that mining mitigation techniques are rarely used.

Routers that have been tested for security include Netgear, D-Link, Linksys, TP-Link, Asus, Edimax, AVM, and Synology. These routers are used by millions of people around the world. But the worst offender was TP-Link’s Archer AX6000 router, and it was found to have 32 security issues. It is closely followed by Synology RT-2600AC with 30 security issues.

In case of successful router intrusion, hacker will take full control on all aspects of the user’s internet traffic and also attempt further attacks, such as directing the user to phishing websites or infecting many other devices connected to the router WIFI.

What vulnerabilities do modern routers have?

Netgear’s R6400v2, D7800 and R6700v3 have many vulnerabilities. D-Link has also posted on their website that they are investigating the reported security issue and will update on it as soon as possible.

A D-Link spokesperson has also said that the company hasn’t used affected software in its new router models for years after a similar vulnerability was discovered in 2015.

Set up a Netgear router

Some problems have been detected many times. Most of the time the operating system is outdated for the router. Since integrating a new kernel is expensive, no manufacturer has updated it. The device’s software is often outdated because it depends on the standard tools on BusyBox.

So let’s look at the most common problems are-

  • Outdated VPN and multimedia functions
  • Outdated Linux kernel in firmware
  • Presence of heavyweight logins in plain text format
  • Over-dependence on older BusyBox functions
  • Use a weak default password such as ‘admin’

Regardless of which model you buy, the best thing you can do is make your router more secure and change the password the first time you use it. Also, enable automatic updates on your router. It is not a perfect solution but it can reduce the risk to some extent.

Where is the problem of lying?

The problem is with NetUSB, a Linux kernel model designed by KCodes, a Taiwanese company that allows devices, such as network-ready storage or printers, to access the local network via router’s USB port.

Van Amerongen from Sentinel Labs discovered that NetUSB not only listens for local network commands on port 20005 but also internet commands without requiring any password or authentication.

He discovered that to create a buffer overflow with specific NetUSB commands on that port number, guarantees control over the router’s Linux kernel. Sure, that’s not good. Van Amerongen has admitted that for technical reasons, doing this properly is a bit tricky but is doable for all skilled attackers.

The limitations make it more difficult to write exploits for the vulnerabilities, but not impossible. Therefore, if you have a Wi-Fi router, you need to check for firmware updates.

How to deal with vulnerabilities in modern routers?

In this section, we will tell you about some security bugs and how to deal with them.

Firmware manages hardware. It’s an operating system that provides instructions for the router’s processor to execute, such as assigning private addresses or forwarding internet traffic. However, just like other operating systems, the firmware is not bulletproof. You will always find a hole in the code, which could allow hackers to gain access to your network.

But routers are constantly releasing updates to fill the holes. It is not always possible for a router to automatically update its firmware to a new secure version. So it will leave your network vulnerable to remote attacks by hackers.

For example, hackers can change your router’s settings to direct your internet traffic to serious websites. Additionally, they can give hackers control over your computer and access sensitive details.

So for example, if you go to Netgear Router Setup or some other router setup using a web browser or mobile app in their admin panel, you should always check the program status your router’s base or if there are any new firmware updates available, make sure you keep it up to date.

  • Using Default Login will expose you to hackers

A router has two audiences, the public and your device. As we know it Hackers are most active during the festival period. So anyone can access your router, locally or remotely, if you use the default router login and password.

Furthermore, anyone can find your router’s default login details over the internet even if they don’t use a combination of ‘admin’ and ‘password’.

We provide instructions on how to log in to the router to change the default username and password. Use a password manager to create and store unique login details.

In case you use a mesh adapter, there is no web-based backend. You need to change your username and password with the help of the provided app.

  • WPS can open your network to hackers

WPS helps devices connect to the wireless network when you use it for the first time without using a password. Press a router. Press a button on the router or use an 8-digit PIN. However, with such ease of use comes consequences. WPS is vulnerable to brute force attacks. This is a trial-and-error method for determining credentials. A hacker can discover the first four digits of your PIN because there are only 1,100 possible combinations. Once they spot 4 digits, they can easily figure out the next 4 digits.

The best solution for this is to update the firmware and disable WPS. The procedure for disabling routers varies between manufacturers. That’s how you can protect yourself from vulnerabilities in modern Routers.

  • Remote access can invite hackers

Remote Access will allow you to load your router’s interface over the internet. For example, speaking of Netgear Routers, they mostly have a default username of “admin” and a default password of “password” and hence anyone trying to do Router Setup New Netgear route, easily accessible to hackers. access from anywhere and change username and password to route internet traffic to nefarious websites.

You will find Remote Access controls in the Administration section of your router to disable the feature. Turn it back on when you plan to travel and turn it off as soon as you return.

  • Router broadcast model number

Tap or click your device’s Wi-Fi icon and you can most likely identify some name in the list: NETGEAR, Linksys, etc. Router owners never change the default SSID name which is the name. public and wireless networks.

That’s a problem because when someone sees NETGEAR or Linksys they know that someone is the owner of these routers. Search the internet to learn about the default SSID and login pair. Use the credentials to access the router and get the network’s credentials.

Usually you should change the name of the network to something other than the default name. Rename it whatever you want, whether it’s something simple or a label that will annoy the neighbors. Change the SSID through the manufacturer-provided mobile app or by accessing the web interface.


Most of the Vulnerabilities in Modern Routers are with the router’s firmware. The researchers found that the sheer number of vulnerabilities was due to a combination of reliance on open source projects due to lack of patches and robust code.

Securing the network will be a challenge, and it will be even more so with remote workers joining the ranks of the organization. All vendors are working on their routers to some extent, and although there’s not much follow-up testing underway, software updates can fill the void.

Make sure that the firmware is updated to eliminate the errors and omissions that you read about in the research papers. Some vendors are spending more effort and time on their updates than others. Finally, all vendors will make some contribution to fix the problem.

Image Credits: Provided by the Author; Thank you!

Shiva Kumar

Shiva Kumar

Hi, I’m Shiva Kumar, I’ve been following tech news since last 10 years. I am an expert in Digital Marketing and Cybersecurity. And I support the Lakers “have a gun to go”.

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