Your Old Router is a Ticking Time Bomb—And It Won't Be Fixed

A basic piece of home and workplace equipment, your router, has a weakness that is currently being exploited by a silent and pervasive cyber threat. Cybersecurity researchers have discovered active attacks that take advantage of a vulnerability that enables hackers to fully take control of a variety of out-of-date D-Link DSL router models. What is the most important detail? Officially, D-Link has stated that "there will be no patch."

The router's software failed to adequately verify and sanitize user input, resulting in the vulnerability, which is listed as CVE-2026-0625. An attacker can submit a specifically constructed request to the router without a password thanks to this technological vulnerability. Once exposed, they are able to take complete control of the device by executing commands. The targeted function is frequently used to change DNS configurations, making DNS hijacking possible.

The Danger of DNS Hijacking

Hackers might covertly reroute your internet traffic by altering the DNS settings on your router. You may enter your bank's or email's website URL, but the hacked router directs you to a flawless spoof intended to steal your login information. This occurs covertly, leaving you open to financial fraud, data theft, and more malware infestations.

Which Gadgets Are in Danger?

The assaults target D-Link legacy DSL gateway models that are no longer supported after reaching the end of their useful life more than five years ago. Among the impacted models are:

• DSL-2740R

• DSL-2640B

• DSL-2780B

• DSL-526B

D-Link's clear recommendation is to retire all impacted devices and swap them out with a model that is still supported and gets regular security updates. This incident is not unique; it is a part of a recurrent wave of attacks that explicitly target out-of-date routers from different brands. These attacks are commonly referred to as GhostDNS or DNSChanger campaigns.

An Increasing Trend with No Simple Solution

The enormous risk posed by neglected, end-of-life Internet of Things (IoT) devices is a much bigger cybersecurity issue that is brought to light by this D-Link incident. Similar massive attacks have taken control of thousands of out-of-date routers from ASUS, Linksys, and TP-Link in recent months, transforming them into instruments for thieves. Due to manufacturers ceasing to provide security upgrades, these devices—which frequently operate for years without a second thought—have become easy targets, leaving known vulnerabilities exposed indefinitely.

Your Plan of Action: Secure and Replace

You must take quick action if you have an older router, particularly one of the D-Link models mentioned. Verify the support status of your item by contacting the manufacturer or visiting their website. Replacing an end-of-life device is an essential security requirement, not a recommendation. Make sure you are using the most recent firmware for every router, modify the default administrator password, and turn off remote management functions if you don't require them.

We at Bayon Technologies Group assist companies and individuals in creating strong online defenses. Our managed services guarantee that your infrastructure is shielded from changing threats, and our security reviews involve checking network devices for precisely these kinds of unsupported dangers. The weakest link in your security chain shouldn't be a forgotten router.