If it's not, then read on to learn how to download the firmware you need.
Note: Some router models vulnerable to The Moon are no longer supported by Linksys and haven't been issued any firmware updates.
You should be able to find this number written on your router near the model number. Locate the download named "Firmware" and click "Download." The download file should have a ".bin" extension, though it might also come as ".bix," ".trx," ".fim," ".rmt" or "" Save this file anywhere on your computer. A popup will eventually appear informing you that the upgrade has been successful. Do this by unplugging it from its power socket for 10 seconds, then plugging it in again.
Click "Continue" on that popup to complete the process. Congratulations &mash; you're now running the latest firmware for your router.
There are a few extra steps you should take to make sure your router is as secure as possible. In the router's Web-based setup page, click on the "Administration" tab at the top.
You should now see a tab at the left labeled "Remote Management Access." To its right are the words "Remote Management" followed by an "Enabled" or "Disabled" option.
You can find the model number on the underside of your router.
The model number should auto-complete when you start to type it into the Web page.
You should see a tab at the left of the screen called "Internet Filter." Click on that tab, then make sure the box next to "Filter Anonymous Internet Requests" is checked.Click on that auto-completed name and you'll be taken directly to the support page for your router. On the router model's support page, select "Downloads" from the row of tabs near the middle of the screen.From the drop-down box that appears below the tabs, choose your hardware version. Don't turn off the power or hit the router's reset button while this process is underway.Updating the router’s firmware on your home network is often overlooked.Upgrading the firmware improves performance, stability and wireless range. Every Linksys router I’ve seen in my career upgrades the same way.Fortunately, upgrading to the latest Linksys router firmware and disabling the Remote Management Access feature will prevent the worm from gaining access. Do this by opening a Web browser on any computer or mobile device connected to the Linksys router and typing "192.168.1.1" into the address bar.