Which NETGEAR devices are affected by CVE-2019-20740?

DGN2200v4, DGND2200Bv4, R7300, R8300, and R8500 are affected by CVE-2019-20740.

What is the severity level of CVE-2019-20740?

The severity level of CVE-2019-20740 is medium with a rating of 6.8.

How can an authenticated user exploit the vulnerability in CVE-2019-20740?

An authenticated user can exploit the stack-based buffer overflow vulnerability in CVE-2019-20740.

What is the fix for CVE-2019-20740?

Ensure that you have installed the latest firmware version for the affected NETGEAR devices.

Where can I find more information about CVE-2019-20740?

You can find more information about CVE-2019-20740 in the Netgear security advisory: [https://kb.netgear.com/000060976/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Routers-and-Gateways-PSV-2018-0258](https://kb.netgear.com/000060976/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Routers-and-Gateways-PSV-2018-0258).

Vulnerability/
CVE-2019-20740

medium

6.8

CWE

787 119

16/4/2020

22/4/2020

CVE-2019-20740: Buffer Overflow

First published: Thu Apr 16 2020(Updated: )

Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects DGN2200v4 before 1.0.0.110, DGND2200Bv4 before 1.0.0.109, R7300 before 1.0.0.70, R8300 before 1.0.2.130, and R8500 before 1.0.2.130.

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
Netgear Dgn2200 Firmware	<1.0.0.110
Netgear DGN2200	=v4
Netgear Dgnd2200b Firmware	<1.0.0.109
Netgear Dgnd2200b	=v4
Netgear R7300 Firmware	<1.0.0.70
Netgear R7300
Netgear R8300 Firmware	<1.0.2.130
NETGEAR R8300
Netgear R8500 Firmware	<1.0.2.130
NETGEAR R8500

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Reference Links

https://kb.netgear.com/000060976/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Routers-and-Gateways-PSV-2018-0258

Frequently Asked Questions

Which NETGEAR devices are affected by CVE-2019-20740?
DGN2200v4, DGND2200Bv4, R7300, R8300, and R8500 are affected by CVE-2019-20740.
What is the severity level of CVE-2019-20740?
The severity level of CVE-2019-20740 is medium with a rating of 6.8.
How can an authenticated user exploit the vulnerability in CVE-2019-20740?
An authenticated user can exploit the stack-based buffer overflow vulnerability in CVE-2019-20740.
What is the fix for CVE-2019-20740?
Ensure that you have installed the latest firmware version for the affected NETGEAR devices.
Where can I find more information about CVE-2019-20740?
You can find more information about CVE-2019-20740 in the Netgear security advisory: [https://kb.netgear.com/000060976/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Routers-and-Gateways-PSV-2018-0258](https://kb.netgear.com/000060976/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Routers-and-Gateways-PSV-2018-0258).

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