What is CVE-2021-45573?

CVE-2021-45573 is a vulnerability affecting certain NETGEAR devices that allows an unauthenticated attacker to perform a stack-based buffer overflow.

What is the severity of CVE-2021-45573?

CVE-2021-45573 has a severity rating of 8.8 (high).

How can I fix CVE-2021-45573?

To fix CVE-2021-45573, users should update their device's firmware to the latest version provided by NETGEAR.

Where can I find more information about CVE-2021-45573?

More information about CVE-2021-45573 can be found in the NETGEAR security advisory: https://kb.netgear.com/000064095/Security-Advisory-for-Post-Authentication-Command-Injection-on-Some-WiFi-Systems-PSV-2020-0081

Vulnerability/
CVE-2021-45573

high

8.8

CWE

787 119

26/12/2021

5/1/2022

CVE-2021-45573: Buffer Overflow

Q: Which NETGEAR devices are affected by CVE-2021-45573?

CVE-2021-45573 affects the following NETGEAR devices: R6260 before 1.1.0.76, R6800 before 1.2.0.62, R6700v2 before 1.2.0.62, R6900v2 before 1.2.0.62, R7450 before 1.2.0.62, AC2100 before 1.2.0.62, AC2400 before 1.2.0.62, and AC2600 before 1.2.0.62.

First published: Sun Dec 26 2021(Updated: )

Certain NETGEAR devices are affected by a stack-based buffer overflow by an unauthenticated attacker. This affects R6260 before 1.1.0.76, R6800 before 1.2.0.62, R6700v2 before 1.2.0.62, R6900v2 before 1.2.0.62, R7450 before 1.2.0.62, AC2100 before 1.2.0.62, AC2400 before 1.2.0.62, and AC2600 before 1.2.0.62.

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
Netgear R6260 Firmware	<1.1.0.76
NETGEAR R6260
Netgear R6800 Firmware	<1.2.0.62
Netgear R6800
Netgear R6700 Firmware	<1.2.0.62
NETGEAR R6700	=v2
Netgear R6900 Firmware	<1.2.0.62
Netgear R6900	=v2
Netgear R7450 Firmware	<1.2.0.62
NETGEAR R7450
Netgear Ac2100 Firmware	<1.2.0.62
Netgear Ac2100
Netgear Ac2400 Firmware	<1.2.0.62
Netgear Ac2400
Netgear Ac2600 Firmware	<1.2.0.62
Netgear Ac2600

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Reference Links

https://kb.netgear.com/000064095/Security-Advisory-for-Post-Authentication-Command-Injection-on-Some-WiFi-Systems-PSV-2020-0081

Frequently Asked Questions

What is CVE-2021-45573?
CVE-2021-45573 is a vulnerability affecting certain NETGEAR devices that allows an unauthenticated attacker to perform a stack-based buffer overflow.
Which NETGEAR devices are affected by CVE-2021-45573?
CVE-2021-45573 affects the following NETGEAR devices: R6260 before 1.1.0.76, R6800 before 1.2.0.62, R6700v2 before 1.2.0.62, R6900v2 before 1.2.0.62, R7450 before 1.2.0.62, AC2100 before 1.2.0.62, AC2400 before 1.2.0.62, and AC2600 before 1.2.0.62.
What is the severity of CVE-2021-45573?
CVE-2021-45573 has a severity rating of 8.8 (high).
How can I fix CVE-2021-45573?
To fix CVE-2021-45573, users should update their device's firmware to the latest version provided by NETGEAR.
Where can I find more information about CVE-2021-45573?
More information about CVE-2021-45573 can be found in the NETGEAR security advisory: https://kb.netgear.com/000064095/Security-Advisory-for-Post-Authentication-Command-Injection-on-Some-WiFi-Systems-PSV-2020-0081

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