medium
4.5
CWE
787 119
Advisory Published
Updated

CVE-2021-45604: Buffer Overflow

First published: Sun Dec 26 2021(Updated: )

Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects CBR750 before 3.2.18.2, D6220 before 1.0.0.68, D6400 before 1.0.0.102, D8500 before 1.0.3.60, LAX20 before 1.1.6.28, MK62 before 1.0.6.116, MR60 before 1.0.6.116, MS60 before 1.0.6.116, R6300v2 before 1.0.4.50, R6400 before 1.0.1.68, R6400v2 before 1.0.4.118, R6700v3 before 1.0.4.118, R6900P before 1.3.3.140, R7000 before 1.0.11.116, R7000P before 1.3.3.140, R7850 before 1.0.5.68, R7900 before 1.0.4.38, R7900P before 1.4.2.84, R7960P before 1.4.2.84, R8000 before 1.0.4.68, R8000P before 1.4.2.84, RAX15 before 1.0.3.96, RAX20 before 1.0.3.96, RAX200 before 1.0.4.120, RAX35v2 before 1.0.3.96, RAX40v2 before 1.0.3.96, RAX43 before 1.0.3.96, RAX45 before 1.0.3.96, RAX50 before 1.0.3.96, RAX75 before 1.0.4.120, RAX80 before 1.0.4.120, RBK752 before 3.2.17.12, RBK852 before 3.2.17.12, RBR750 before 3.2.17.12, RBR850 before 3.2.17.12, RBS750 before 3.2.17.12, RBS850 before 3.2.17.12, RS400 before 1.5.1.80, and XR1000 before 1.0.0.58.

Credit: cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
NETGEAR CBR750<3.2.18.2
NETGEAR CBR750
Netgear D6220 Firmware<1.0.0.68
NETGEAR D6220 firmware
NETGEAR D6400<1.0.0.102
NETGEAR D6400 firmware
Netgear D8500 Firmware<1.0.3.60
Netgear D8500 Firmware
NETGEAR LAX20 firmware<1.1.6.28
NETGEAR LAX20
NETGEAR MK62<1.0.6.116
NETGEAR MK62 firmware
NETGEAR MR60 firmware<1.0.6.116
NETGEAR MR60 firmware
NETGEAR MS60<1.0.6.116
NETGEAR MS60 firmware
NETGEAR R6300 firmware<1.0.4.50
NETGEAR R6300v2=v2
NETGEAR R6400 firmware<1.0.1.68
NETGEAR R6400 firmware
NETGEAR R6400 firmware<1.0.4.118
NETGEAR R6400 firmware=v2
Netgear R6700 Firmware<1.0.4.118
NETGEAR R6700v1 firmware=v3
NETGEAR R6900P firmware<1.3.3.140
Netgear R6900 Firmware
NETGEAR R7000 firmware<1.0.11.116
NETGEAR R7000 firmware
NETGEAR R7000P firmware<1.3.3.140
Netgear R7000P
NETGEAR R7850<1.0.5.68
NETGEAR R7850 firmware
NETGEAR R7900P firmware<1.0.4.38
NETGEAR R7900P firmware
NETGEAR R7900P firmware<1.4.2.84
NETGEAR R7900P firmware
NETGEAR R7960P firmware<1.4.2.84
NETGEAR R7960P firmware
NETGEAR R8000 firmware<1.0.4.68
NETGEAR R8000 firmware
NETGEAR R8000P<1.4.2.84
NETGEAR R8000P firmware
NETGEAR RAX15 firmware<1.0.3.96
NETGEAR RAX15 firmware
NETGEAR RAX20 firmware<1.0.3.96
NETGEAR RAX20 firmware
NETGEAR RAX200 firmware<1.0.4.120
NETGEAR RAX200 firmware
NETGEAR RAX35 firmware<1.0.3.96
Netgear RAX35=v2
NETGEAR RAX40 firmware<1.0.3.96
NETGEAR RAX40 firmware=v2
NETGEAR RAX43 firmware<1.0.3.96
Netgear RAX43
NETGEAR RAX45 Firmware<1.0.3.96
NETGEAR RAX45 firmware
NETGEAR RAX50<1.0.3.96
NETGEAR RAX50
NETGEAR RAX75 firmware<1.0.4.120
NETGEAR RAX75 firmware
NETGEAR RAX80 firmware<1.0.4.120
NETGEAR RAX80 firmware
NETGEAR RBK752 firmware<3.2.17.12
NETGEAR RBK752 firmware
NETGEAR RBK852<3.2.17.12
NETGEAR RBK852
NETGEAR RBR750<3.2.17.12
NETGEAR RBR750 firmware
NETGEAR RBR850 firmware<3.2.17.12
NETGEAR RBR850 firmware
NETGEAR RBS750<3.2.17.12
NETGEAR RBS750
NETGEAR RBS850<3.2.17.12
NETGEAR RBS850 firmware
NETGEAR RS400 firmware<1.5.1.80
NETGEAR RS400 firmware
NETGEAR XR1000 firmware<1.0.0.58
NETGEAR XR1000 firmware
All of
NETGEAR CBR750<3.2.18.2
NETGEAR CBR750
All of
Netgear D6220 Firmware<1.0.0.68
NETGEAR D6220 firmware
All of
NETGEAR D6400<1.0.0.102
NETGEAR D6400 firmware
All of
Netgear D8500 Firmware<1.0.3.60
Netgear D8500 Firmware
All of
NETGEAR LAX20 firmware<1.1.6.28
NETGEAR LAX20
All of
NETGEAR MK62<1.0.6.116
NETGEAR MK62 firmware
All of
NETGEAR MR60 firmware<1.0.6.116
NETGEAR MR60 firmware
All of
NETGEAR MS60<1.0.6.116
NETGEAR MS60 firmware
All of
NETGEAR R6300 firmware<1.0.4.50
NETGEAR R6300v2=v2
All of
NETGEAR R6400 firmware<1.0.1.68
NETGEAR R6400 firmware
All of
NETGEAR R6400 firmware<1.0.4.118
NETGEAR R6400 firmware=v2
All of
Netgear R6700 Firmware<1.0.4.118
NETGEAR R6700v1 firmware=v3
All of
NETGEAR R6900P firmware<1.3.3.140
Netgear R6900 Firmware
All of
NETGEAR R7000 firmware<1.0.11.116
NETGEAR R7000 firmware
All of
NETGEAR R7000P firmware<1.3.3.140
Netgear R7000P
All of
NETGEAR R7850<1.0.5.68
NETGEAR R7850 firmware
All of
NETGEAR R7900P firmware<1.0.4.38
NETGEAR R7900P firmware
All of
NETGEAR R7900P firmware<1.4.2.84
NETGEAR R7900P firmware
All of
NETGEAR R7960P firmware<1.4.2.84
NETGEAR R7960P firmware
All of
NETGEAR R8000 firmware<1.0.4.68
NETGEAR R8000 firmware
All of
NETGEAR R8000P<1.4.2.84
NETGEAR R8000P firmware
All of
NETGEAR RAX15 firmware<1.0.3.96
NETGEAR RAX15 firmware
All of
NETGEAR RAX20 firmware<1.0.3.96
NETGEAR RAX20 firmware
All of
NETGEAR RAX200 firmware<1.0.4.120
NETGEAR RAX200 firmware
All of
NETGEAR RAX35 firmware<1.0.3.96
Netgear RAX35=v2
All of
NETGEAR RAX40 firmware<1.0.3.96
NETGEAR RAX40 firmware=v2
All of
NETGEAR RAX43 firmware<1.0.3.96
Netgear RAX43
All of
NETGEAR RAX45 Firmware<1.0.3.96
NETGEAR RAX45 firmware
All of
NETGEAR RAX50<1.0.3.96
NETGEAR RAX50
All of
NETGEAR RAX75 firmware<1.0.4.120
NETGEAR RAX75 firmware
All of
NETGEAR RAX80 firmware<1.0.4.120
NETGEAR RAX80 firmware
All of
NETGEAR RBK752 firmware<3.2.17.12
NETGEAR RBK752 firmware
All of
NETGEAR RBK852<3.2.17.12
NETGEAR RBK852
All of
NETGEAR RBR750<3.2.17.12
NETGEAR RBR750 firmware
All of
NETGEAR RBR850 firmware<3.2.17.12
NETGEAR RBR850 firmware
All of
NETGEAR RBS750<3.2.17.12
NETGEAR RBS750
All of
NETGEAR RBS850<3.2.17.12
NETGEAR RBS850 firmware
All of
NETGEAR RS400 firmware<1.5.1.80
NETGEAR RS400 firmware
All of
NETGEAR XR1000 firmware<1.0.0.58
NETGEAR XR1000 firmware

Remedy

https://kb.netgear.com/000064526/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Routers-and-WiFi-Systems-PSV-2020-0572

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2021-45604?

    CVE-2021-45604 is classified as a high-severity vulnerability due to its potential to allow authenticated users to execute arbitrary code.

  • How do I fix CVE-2021-45604?

    To fix CVE-2021-45604, update the affected NETGEAR devices to the latest firmware version as specified in the security advisory.

  • Which NETGEAR devices are affected by CVE-2021-45604?

    CVE-2021-45604 affects several NETGEAR devices including CBR750, D6220, D6400, D8500, and others prior to their respective fixed firmware versions.

  • What is a stack-based buffer overflow in the context of CVE-2021-45604?

    A stack-based buffer overflow occurs when more data is written to a buffer on the stack than it can hold, which can lead to memory corruption and possible code execution.

  • Can CVE-2021-45604 be exploited remotely?

    No, CVE-2021-45604 requires an authenticated user to exploit the vulnerability, limiting its attack surface.

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