On Nov 20, D-Link released an important alert for users of certain older VPN routers: these devices have a critical flaw that could let hackers take control of your network, as reported by SecurityWeek. If you’re using one of these routers, D-Link recommends you stop using it immediately and replace it with a newer model.
What’s the Problem With An Old D-Link Router?
Older D-Link VPN routers have a vulnerability called remote code execution, or RCE. This means that hackers could use the flaw to break into your router and run programs on it, all without needing your password. Once they gain control, they could:
- Steal sensitive information like passwords or financial data.
- Redirect your internet traffic to fake websites.
- Use your network to launch attacks on others.
This particular problem is caused by a buffer overflow, a technical term that means the router’s memory gets overloaded in a way that lets hackers sneak in. Since these routers are old and no longer receive updates from D-Link, the company will not or cannot fix the flaw with a software patch.
Which D-Link Routers Are Affected?
D-Link hasn’t named specific models, but they have stated the issue affects older VPN routers that are no longer supported. These are devices that have reached their “end-of-life” status, meaning D-Link stopped providing security updates for them. If your router is more than a few years old or you’re unsure if it’s still supported, it’s a good idea to check D-Link security announcements.
Old Router? What You Should Do Right Now
D-Link recommends replacing your old router immediately to protect your network. Follow these steps to stay safe:
Identify Your Router Model: Look for the model number on a sticker on the back or bottom of your router. Write it down.
Check if It’s Supported: Visit the D-Link support website or contact their customer service to see if your router is affected. If it’s out of support, assume it’s vulnerable.
Replace Your Router: D-Link is offering a 20% discount on newer routers. If you prefer another brand, look for a router that supports the latest security protocols like WPA3 and offers automatic updates. To take advantage of the D-Link discount, follow this link to the end-of-life announcement which includes instructions on how to do so.
Dispose of the Old Router Securely: Before you get rid of your old router, reset it to factory settings to erase any personal data.
How To Factory Reset Your Router
A factory reset restores the router to its original out-of-the-box state. For most routers, you can use the following steps:
Locate the Reset Button: The reset button is typically a small pinhole located on the back or bottom of the router. You’ll need a small object like a paperclip or a pin to press it.
Power On the Router: Ensure the router is plugged in and turned on. The reset process won’t work if the router is off.
Press and Hold the Reset Button: Insert the paperclip or pin into the reset button hole. Press and hold the button for 10-30 seconds, depending on the router model, until the router lights start flashing or the power light changes color.
Wait for the Router to Restart: After you release the button, the router will reboot. This may take 1-5 minutes. The router should return to its factory default settings.
Why Routers Matter In Network Security
Your router is the heart of your home or business network, making it a prime target for cyberattacks. Vulnerabilities in older devices, like those recently identified in D-Link’s VPN routers, highlight the critical importance of staying proactive about your network’s security. Whether it’s replacing outdated hardware or regular software patching and updates.
Ignoring these risks could leave your devices and data exposed to hackers who exploit unpatched vulnerabilities. Stay ahead of cyber threats and keep your devices safe by following these best practices. Cybersecurity isn’t just for experts; it’s something every router owner needs to prioritize. Protect your network, protect your data, and stay secure online.
