Associated ZDI ID: ZDI-CAN-13055
First published: 2021-09-24
NETGEAR has released fixes for a pre-authentication buffer overflow security vulnerability on the following product models:
- D7800
- EX2700
- EX6100v2
- EX6150v2
- EX6200v2
- EX6250
- EX6400
- EX6400v2
- EX6410
- EX6420
- EX6500v1
- EX7300
- EX7300v2
- EX7320
- EX7700
- EX8000
- LBR1020
- LBR20
- R6700AX
- R7800
- R8900
- R9000
- RAX10
- RAX120
- RAX120v2
- RAX70
- RAX78
- RBR10
- RBR20
- RBR40
- RBR50
- RBS10
- RBS20
- RBS40
- RBS50
- RBS50Y
- WN3000RPv2
- WNR2000v5
- XR450
- XR500
- XR700
NETGEAR strongly recommends that you download the latest firmware as soon as possible. Firmware fixes are currently available for all affected products:
- D7800 fixed in firmware 1.0.1.64
- EX2700 fixed in firmware 1.0.1.66
- EX6100v2 fixed in firmware 1.0.1.106
- EX6150v2 fixed in firmware 1.0.1.106
- EX6200v2 fixed in firmware 1.0.1.86
- EX6250 fixed in firmware 1.0.0.146
- EX6400 fixed in firmware 1.0.2.164
- EX6400v2 fixed in firmware 1.0.0.146
- EX6410 fixed in firmware 1.0.0.146
- EX6420 fixed in firmware 1.0.0.146
- EX6500v1 fixed in firmware 1.0.0.146
- EX7300 fixed in firmware 1.0.2.164
- EX7300v2 fixed in firmware 1.0.0.146
- EX7320 fixed in firmware 1.0.0.146
- EX7700 fixed in firmware 1.0.0.222
- EX8000 fixed in firmware 1.0.1.238
- LBR1020 fixed in firmware 2.6.5.16
- LBR20 fixed in firmware 2.6.5.32
- R6700AX fixed in firmware version 1.0.5.108
- R7800 fixed in firmware version 1.0.2.84
- R8900 fixed in firmware version 1.0.5.36
- R9000 fixed in firmware version 1.0.5.36
- RAX10 fixed in firmware version 1.0.5.108
- RAX120 fixed in firmware version 1.2.2.24
- RAX120v2 fixed in firmware version 1.2.2.24
- RAX70 fixed in firmware version 1.0.5.108
- RAX78 fixed in firmware version 1.0.5.108
- RBR10 fixed in firmware 2.7.4.24
- RBR20 fixed in firmware 2.7.4.24
- RBR40 fixed in firmware 2.7.4.24
- RBR50 fixed in firmware 2.7.4.24
- RBS10 fixed in firmware 2.7.4.24
- RBS20 fixed in firmware 2.7.4.24
- RBS40 fixed in firmware 2.7.4.24
- RBS50 fixed in firmware 2.7.4.24
- RBS50Y fixed in firmware 2.7.4.12
- WN3000RPv2 fixed in firmware 1.0.0.88
- WNR2000v5 fixed in firmware 1.0.0.78
- XR450 fixed in firmware 2.3.2.130
- XR500 fixed in firmware 2.3.2.130
- XR700 fixed in firmware version 1.0.1.44
To download the latest firmware for your NETGEAR product:
- Visit NETGEAR Support.
- Start typing your model number in the search box, then select your model from the drop-down menu as soon as it appears.
If you do not see a drop-down menu, make sure that you entered your model number correctly, or select a product category to browse for your product model. - Click Downloads.
- Under Current Versions, select the first download whose title begins with Firmware Version.
- Click Release Notes.
- Follow the instructions in the firmware release notes to download and install the new firmware.
Disclaimer
This document is provided on an "as is" basis and does not imply any kind of guarantee or warranty, including the warranties of merchantability or fitness for a particular use. Your use of the information in the document or materials linked from the document is at your own risk. NETGEAR reserves the right to change or update this document at any time. NETGEAR expects to update this document as new information becomes available.
The pre-authentication buffer overflow vulnerability remains if you do not complete all recommended steps. NETGEAR is not responsible for any consequences that could have been avoided by following the recommendations in this notification.
Acknowledgements
Hoang Thach Nguyen of STAR Labs Labs working with Trend Micro Zero Day Initiative
Common Vulnerability Scoring System
Rating: High
Score: 8.8
Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Best Practices for Updating Firmware
We recommend that you keep your NETGEAR devices up to date with the latest firmware. Firmware updates contain security fixes, bug fixes, and new features for your NETGEAR products.
If your product is supported by one of our apps, using the app is the easiest way to update your firmware:
- Orbi products: NETGEAR Orbi app
- NETGEAR WiFi routers: NETGEAR Nighthawk app
- Some NETGEAR Business products: NETGEAR Insight app (firmware updates through the app are available only for Insight subscribers)
If your product is not supported by one of our apps, you can always update your firmware manually by following the instructions in your product’s user manual, firmware release notes, or product support page. For more information, see Where can I find information about my NETGEAR product?.
Contact
We appreciate and value having security concerns brought to our attention. NETGEAR constantly monitors for both known and unknown threats. Being pro-active rather than re-active to emerging security issues is fundamental for product support at NETGEAR.
It is NETGEAR's mission to be the innovative leader in connecting the world to the internet. To achieve this mission, we strive to earn and maintain the trust of those that use NETGEAR products for their connectivity.
To report a security vulnerability, visit https://bugcrowd.com/netgear.
If you are a NETGEAR customer with a security-related support concern, you can contact NETGEAR customer support at techsupport.security@netgear.com.
For all other issues, visit http://www.netgear.com/about/security/.
Revision History
2021-09-24: Published advisory
2021-09-29:
- Added ZDI ID
- Updated acknowledgment
2022-05-17: Added D7800, EX2700, EX6100v2, EX6150v2, EX6200v2, EX6250, EX6400, EX6400v2, EX6410, EX6420, EX6500v1, EX7300, EX7300v2, EX7320, EX7700, EX8000, LBR1020, LBR20, RBR10, RBR20, RBR40, RBR50, RBS10, RBS20, RBS40, RBS50, RBS50Y, WN3000RPv2, WNR2000v5, XR450, XR500