CVE-2026-11735: Stack-based buffer overflow vulnerability in some NETGEAR Nighthawk models

Published Aug 11, 2026
·
Updated

A stack-based buffer overflow vulnerability affects the listed NETGEAR models allowing an authenticated admin user to make unauthorized modification to the router's software and functionality.

Affected Software

41 affected components
Netgear NETGEAR Nighthawk models
All of the following
Netgear R7000 Firmware
Netgear R7000
All of the following
Netgear Rax20 Firmware
Netgear RAX20
All of the following
Netgear Rax35v2 Firmware<1.0.16.132
Netgear RAX35v2
All of the following
Netgear Rax41 Firmware
Netgear RAX41
All of the following
Netgear Rax41v2 Firmware<1.1.4.28
Netgear RAX41v2
All of the following
Netgear Rax42 Firmware
Netgear RAX42
All of the following
Netgear Rax42v2 Firmware<1.1.4.28
Netgear RAX42v2
All of the following
Netgear Rax43 Firmware<1.0.16.132
Netgear RAX43
All of the following
Netgear Rax43v2 Firmware<1.1.4.28
Netgear RAX43v2
All of the following
Netgear Rax45 Firmware
Netgear RAX45
All of the following
Netgear Rax49s Firmware<1.1.4.28
Netgear RAX49S
All of the following
Netgear Rax50 Firmware<1.0.16.132
Netgear RAX50
All of the following
Netgear Rax50s Firmware<1.0.16.132
Netgear Rax50s
All of the following
Netgear Rax50v2 Firmware<1.1.4.28
Netgear RAX50v2
All of the following
Netgear Rax54sv2 Firmware<1.1.4.28
Netgear RAX54Sv2
All of the following
Netgear Rax54v2 Firmware<1.1.4.28
Netgear Rax54v2
All of the following
Netgear Raxe450 Firmware
Netgear RAXE450
All of the following
Netgear Raxe500 Firmware<1.2.14.114
Netgear RAXE500
All of the following
Netgear Xr1000 Firmware<1.1.0.22
Netgear XR1000
All of the following
Netgear Xr1000v2 Firmware<1.1.0.22
Netgear XR1000v2

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade NETGEAR Nighthawk routers (RAX35v2, RAX41v2, RAX42v2, RAX49S, RAX50v2, RAX54Sv2, RAXE500, XR1000, XR1000v2) to a version that resolves this vulnerability.

    Fixed in 1.1.4.28
  2. Upgrade

    Upgrade NETGEAR Nighthawk routers (RAX35v2, RAX41, RAX42, RAX43, RAX50, RAX50S, RAX54v2, RAXE500) to a version that resolves this vulnerability.

    Fixed in 1.1.4.28
  3. Upgrade

    Upgrade NETGEAR Nighthawk RAX35v2 to a version that resolves this vulnerability.

    Fixed in 1.0.16.132
  4. Upgrade

    Upgrade NETGEAR Nighthawk RAX41v2 to a version that resolves this vulnerability.

    Fixed in 1.1.4.28
  5. Upgrade

    Upgrade NETGEAR Nighthawk RAX42v2 to a version that resolves this vulnerability.

    Fixed in 1.1.4.28
  6. Upgrade

    Upgrade NETGEAR Nighthawk RAX43 to a version that resolves this vulnerability.

    Fixed in 1.0.16.132
  7. Upgrade

    Upgrade NETGEAR Nighthawk RAX43v2 to a version that resolves this vulnerability.

    Fixed in 1.1.4.28
  8. Upgrade

    Upgrade NETGEAR Nighthawk RAX45 to a version that resolves this vulnerability.

    Fixed in 1.1.4.28
  9. Upgrade

    Upgrade NETGEAR Nighthawk RAX49S to a version that resolves this vulnerability.

    Fixed in 1.1.4.28
  10. Upgrade

    Upgrade NETGEAR Nighthawk RAX50 to a version that resolves this vulnerability.

    Fixed in 1.0.16.132
  11. Upgrade

    Upgrade NETGEAR Nighthawk RAX50S to a version that resolves this vulnerability.

    Fixed in 1.0.16.132
  12. Upgrade

    Upgrade NETGEAR Nighthawk RAX50v2 to a version that resolves this vulnerability.

    Fixed in 1.1.4.28
  13. Upgrade

    Upgrade NETGEAR Nighthawk RAX54Sv2 to a version that resolves this vulnerability.

    Fixed in 1.1.4.28
  14. Upgrade

    Upgrade NETGEAR Nighthawk RAX54v2 to a version that resolves this vulnerability.

    Fixed in 1.1.4.28
  15. Upgrade

    Upgrade NETGEAR Nighthawk RAXE500 to a version that resolves this vulnerability.

    Fixed in 1.2.14.114
  16. Upgrade

    Upgrade NETGEAR Nighthawk XR1000 to a version that resolves this vulnerability.

    Fixed in 1.1.0.22
  17. Upgrade

    Upgrade NETGEAR Nighthawk XR1000v2 to a version that resolves this vulnerability.

    Fixed in 1.1.0.22
  18. Compensating control

    For models marked (EoS) — R7000, RAX20, RAX35v2, RAX41 (EoS), RAX42 (EoS), RAX45 (EoS), RAX50S (EoS), RAXE450 (EoS) — retire these devices and upgrade to a newer NETGEAR device for continued security support.

Event History

Aug 11, 2026
CVE Published
via MITRE·03:06 PM
Data Sourced
via MITRE·03:06 PM
RemedyDescriptionWeakness
Data Sourced
via NVD·04:17 PM
DescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

1

What is the severity of CVE-2026-11735?

The severity of CVE-2026-11735 is rated as 50, indicating a moderate risk level.

2

How do I fix CVE-2026-11735?

To fix CVE-2026-11735, ensure that your NETGEAR Nighthawk router firmware is updated to the latest version provided by NETGEAR.

3

What NETGEAR models are affected by CVE-2026-11735?

CVE-2026-11735 affects several NETGEAR Nighthawk models, which include specific versions of the routers in that series.

4

What type of vulnerability is CVE-2026-11735?

CVE-2026-11735 is classified as a stack-based buffer overflow vulnerability.

5

Can an unauthorized user exploit CVE-2026-11735?

An unauthorized user cannot directly exploit CVE-2026-11735 as it requires an authenticated admin user to make modifications.

Company

Resources

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