What is CVE-2018-21208?

CVE-2018-21208 is a vulnerability affecting certain NETGEAR devices, allowing an unauthenticated attacker to execute arbitrary commands.

Which NETGEAR devices are affected by CVE-2018-21208?

NETGEAR D6100 (firmware version up to exclusive 1.0.0.57), NETGEAR R6100 (firmware version up to exclusive 1.0.1.20), NETGEAR R7500v2 (firmware version up to exclusive 1.0.3.24), WNDR4300v2 (firmware version up to exclusive 1.0.0.50), and WNDR4500v3 (firmware version up to exclusive 1.0.0.50) are affected.

What is the severity of CVE-2018-21208?

The severity of CVE-2018-21208 is high, with a CVSS score of 8.8.

How does CVE-2018-21208 impact the affected devices?

CVE-2018-21208 allows an unauthenticated attacker to execute arbitrary commands on the affected NETGEAR devices.

How can I fix CVE-2018-21208?

To mitigate CVE-2018-21208, it is recommended to update the firmware of the affected NETGEAR devices to the latest version provided by the manufacturer.

Vulnerability/
CVE-2018-21208

high

8.8

CWE

74 77

28/4/2020

4/5/2020

CVE-2018-21208: Command Injection

First published: Tue Apr 28 2020(Updated: )

Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects D6100 before 1.0.0.57, R6100 before 1.0.1.20, R7500v2 before 1.0.3.24, WNDR4300v2 before 1.0.0.50, and WNDR4500v3 before 1.0.0.50.

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
Netgear D6100 Firmware	<1.0.0.57
NETGEAR D6100
Netgear R6100 Firmware	<1.0.1.20
Netgear R6100
Netgear R7500 Firmware	<1.0.3.24
Netgear R7500	=v2
Netgear Wndr4300 Firmware	<1.0.0.50
Netgear Wndr4300	=v2
Netgear Wndr4500 Firmware	<1.0.0.50
Netgear WNDR4500	=v3

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Reference Links

https://kb.netgear.com/000055141/Security-Advisory-for-Pre-Authentication-Command-Injection-on-Some-Routers-and-Gateways-PSV-2017-2516

Frequently Asked Questions

What is CVE-2018-21208?
CVE-2018-21208 is a vulnerability affecting certain NETGEAR devices, allowing an unauthenticated attacker to execute arbitrary commands.
Which NETGEAR devices are affected by CVE-2018-21208?
NETGEAR D6100 (firmware version up to exclusive 1.0.0.57), NETGEAR R6100 (firmware version up to exclusive 1.0.1.20), NETGEAR R7500v2 (firmware version up to exclusive 1.0.3.24), WNDR4300v2 (firmware version up to exclusive 1.0.0.50), and WNDR4500v3 (firmware version up to exclusive 1.0.0.50) are affected.
What is the severity of CVE-2018-21208?
The severity of CVE-2018-21208 is high, with a CVSS score of 8.8.
How does CVE-2018-21208 impact the affected devices?
CVE-2018-21208 allows an unauthenticated attacker to execute arbitrary commands on the affected NETGEAR devices.
How can I fix CVE-2018-21208?
To mitigate CVE-2018-21208, it is recommended to update the firmware of the affected NETGEAR devices to the latest version provided by the manufacturer.

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