high
8.8
CWE
120 119
Advisory Published
Updated

CVE-2021-45526: Buffer Overflow

First published: Sun Dec 26 2021(Updated: )

Certain NETGEAR devices are affected by a buffer overflow by an authenticated user. This affects EX6000 before 1.0.0.38, EX6120 before 1.0.0.48, EX6130 before 1.0.0.30, R6300v2 before 1.0.4.52, R6400 before 1.0.1.52, R7000 before 1.0.11.126, R7900 before 1.0.4.30, R8000 before 1.0.4.52, R7000P before 1.3.2.124, R8000P before 1.4.1.50, RAX80 before 1.0.3.88, R6900P before 1.3.2.124, R7900P before 1.4.1.50, and RAX75 before 1.0.3.88.

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

Affected SoftwareAffected VersionHow to fix
All of
NETGEAR EX6000<1.0.0.38
NETGEAR EX6000
All of
NETGEAR EX6120 firmware<1.0.0.48
Netgear EX6120
All of
NETGEAR EX6130<1.0.0.30
NETGEAR EX6130
All of
Netgear R6300v2<1.0.4.52
Netgear R6300v2
All of
NETGEAR R6400 firmware<1.0.1.52
NETGEAR R6400 firmware
All of
Netgear Nighthawk R7000 Firmware<1.0.11.126
NETGEAR Nighthawk R7000
All of
NETGEAR R7900P firmware<1.0.4.30
NETGEAR R7900P firmware
All of
NETGEAR R8000 firmware<1.0.4.52
NETGEAR R8000 firmware
All of
NETGEAR R8000P<1.4.1.50
NETGEAR R8000P firmware
All of
NETGEAR R7000P firmware<1.3.2.124
Netgear Routers
All of
NETGEAR RAX80 Firmware<1.0.3.88
NETGEAR RAX80 firmware
All of
NETGEAR RAX75 firmware<1.0.3.88
NETGEAR RAX75 firmware
All of
NETGEAR R6900P firmware<1.3.2.124
Netgear R6900 Firmware
All of
NETGEAR R7900P firmware<1.4.1.50
NETGEAR R7900P firmware
NETGEAR EX6000<1.0.0.38
NETGEAR EX6000
NETGEAR EX6120 firmware<1.0.0.48
Netgear EX6120
NETGEAR EX6130<1.0.0.30
NETGEAR EX6130
Netgear R6300v2<1.0.4.52
Netgear R6300v2
NETGEAR R6400 firmware<1.0.1.52
NETGEAR R6400 firmware
Netgear Nighthawk R7000 Firmware<1.0.11.126
NETGEAR Nighthawk R7000
NETGEAR R7900P firmware<1.0.4.30
NETGEAR R7900P firmware
NETGEAR R8000 firmware<1.0.4.52
NETGEAR R8000 firmware
NETGEAR R8000P<1.4.1.50
NETGEAR R8000P firmware
NETGEAR R7000P firmware<1.3.2.124
Netgear Routers
NETGEAR RAX80 Firmware<1.0.3.88
NETGEAR RAX80 firmware
NETGEAR RAX75 firmware<1.0.3.88
NETGEAR RAX75 firmware
NETGEAR R6900P firmware<1.3.2.124
Netgear R6900 Firmware
NETGEAR R7900P firmware<1.4.1.50
NETGEAR R7900P firmware

Remedy

https://kb.netgear.com/000064446/Security-Advisory-for-Post-Authentication-Buffer-Overflow-on-Some-Routers-and-Extenders-PSV-2019-0078

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Reference Links

Frequently Asked Questions

  • What is the vulnerability ID for this NETGEAR buffer overflow vulnerability?

    The vulnerability ID for this NETGEAR buffer overflow vulnerability is CVE-2021-45526.

  • Which NETGEAR devices are affected by this buffer overflow vulnerability?

    This buffer overflow vulnerability affects EX6000 before 1.0.0.38, EX6120 before 1.0.0.48, EX6130 before 1.0.0.30, R6300v2 before 1.0.4.52, R6400 before 1.0.1.52, R7000 before 1.0.11.126, R7900 before 1.0.4.30, R8000 before 1.0.4.52, R7000P before 1.3.2.124, R8000P before 1.4.1.50, R7000P before 1.3.2.124, Rax80 before 1.0.3.88, Rax75 before 1.0.3.88, R6900P before 1.3.2.124, and R7900P before 1.4.1.50.

  • What is the severity of CVE-2021-45526?

    The severity of CVE-2021-45526 is high with a CVSS score of 8.8.

  • How does this buffer overflow vulnerability impact NETGEAR devices?

    This buffer overflow vulnerability allows an authenticated user to cause a buffer overflow, potentially leading to remote code execution.

  • How can I fix the CVE-2021-45526 vulnerability on my affected NETGEAR device?

    To fix the CVE-2021-45526 vulnerability, update your NETGEAR device firmware to the latest version provided by NETGEAR.

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