Netgear starts patching routers affected by a critical flaw

The company has identified eight affected models so far and has released beta firmware updates

Networking device manufacturer Netgear released firmware updates for several router models in order to patch a critical vulnerability that's publicly known and could be exploited by hackers.

The vulnerability was disclosed by a researcher Friday and affects multiple Netgear router models, many from the company's Nighthawk series. The company initially confirmed the flaw in three models -- R6400, R7000, R8000 -- but it has since expanded the list to include five more.

The models confirmed to be affected so far are: R6250, R6400, R6700, R7000, R7100LG, R7300, R7900 and R8000. This list might not be complete as Netgear continues to analyze the flaw's impact to its entire router portfolio.

The company is working on firmware updates for all affected router models, but for now it only released beta versions for R6400, R7000 and R8000. Beta firmware versions for some of the remaining models will be released as early as Tuesday, the company said in an advisory.

"This beta firmware has not been fully tested and might not work for all users," the company said in its advisory. "NETGEAR is offering this beta firmware release as a temporary solution, but NETGEAR strongly recommends that all users download the production version of the firmware release as soon as it is available."

The vulnerability allows attackers to execute arbitrary shell commands on affected devices by sending maliciously crafted HTTP requests to their web-based management interfaces. The U.S. CERT Coordination Center (CERT/CC) at Carnegie Mellon University rated the flaw as critical, assigning it a score of 9.3 out of 10 in the Common Vulnerability Scoring System (CVSS).

Until a firmware update becomes available for their routers, users can use a workaround that actually exploits the vulnerability in order to stop the router's web server and prevent further exploitation. This can be done by accessing http://[router_IP_address]/cgi-bin/;killall$IFS'httpd' in a browser from a computer on the same network as the router, but the mitigation only lasts until the device is rebooted.

Join the newsletter!

Error: Please check your email address.
Rocket to Success - Your 10 Tips for Smarter ERP System Selection
Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

Lucian Constantin

IDG News Service
Show Comments

Cool Tech

Breitling Superocean Heritage Chronographe 44

Learn more >

SanDisk MicroSDXC™ for Nintendo® Switch™

Learn more >

Toys for Boys

Family Friendly

Panasonic 4K UHD Blu-Ray Player and Full HD Recorder with Netflix - UBT1GL-K

Learn more >

Stocking Stuffer

Razer DeathAdder Expert Ergonomic Gaming Mouse

Learn more >

Christmas Gift Guide

Click for more ›

Most Popular Reviews

Latest Articles

Resources

PCW Evaluation Team

Walid Mikhael

Brother QL-820NWB Professional Label Printer

It’s easy to set up, it’s compact and quiet when printing and to top if off, the print quality is excellent. This is hands down the best printer I’ve used for printing labels.

Ben Ramsden

Sharp PN-40TC1 Huddle Board

Brainstorming, innovation, problem solving, and negotiation have all become much more productive and valuable if people can easily collaborate in real time with minimal friction.

Sarah Ieroianni

Brother QL-820NWB Professional Label Printer

The print quality also does not disappoint, it’s clear, bold, doesn’t smudge and the text is perfectly sized.

Ratchada Dunn

Sharp PN-40TC1 Huddle Board

The Huddle Board’s built in program; Sharp Touch Viewing software allows us to easily manipulate and edit our documents (jpegs and PDFs) all at the same time on the dashboard.

George Khoury

Sharp PN-40TC1 Huddle Board

The biggest perks for me would be that it comes with easy to use and comprehensive programs that make the collaboration process a whole lot more intuitive and organic

David Coyle

Brother PocketJet PJ-773 A4 Portable Thermal Printer

I rate the printer as a 5 out of 5 stars as it has been able to fit seamlessly into my busy and mobile lifestyle.

Featured Content

Product Launch Showcase

Latest Jobs

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?