CVE-2026-11733 PUBLISHED

Buffer overflow vulnerability in some NETGEAR Nighthawk routers

Assigner: NETGEAR
Reserved: 09.06.2026 Published: 11.08.2026 Updated: 12.08.2026

A buffer overflow vulnerability in the listed NETGEAR models allows a device administrator to temporarily interrupt the normal operation of the affected device.

Metrics

CVSS Vector: CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/AU:N/R:U/V:D/RE:L/U:Amber
CVSS Score: 1.1

Product Status

Vendor NETGEAR
Product RAX41
Versions Default: unaffected
  • affected from 0 to V1.1.6.36 (excl.)
Vendor NETGEAR
Product RAX41v2
Versions Default: unaffected
  • affected from 0 to V1.1.6.36 (excl.)
Vendor NETGEAR
Product RAX42
Versions Default: unaffected
  • affected from 0 to V1.1.6.36 (excl.)
Vendor NETGEAR
Product RAX42v2
Versions Default: unaffected
  • affected from 0 to V1.1.6.36 (excl.)
Vendor NETGEAR
Product RAX43
Versions Default: unaffected
  • affected from 0 to V1.1.6.36 (excl.)
Vendor NETGEAR
Product RAX43v2
Versions Default: unaffected
  • affected from 0 to V1.1.6.36 (excl.)
Vendor NETGEAR
Product RAX49S
Versions Default: unaffected
  • affected from 0 to V1.1.6.36 (excl.)
Vendor NETGEAR
Product RAX50
Versions Default: unaffected
  • affected from 0 to V1.1.6.36 (excl.)
Vendor NETGEAR
Product RAX50v2
Versions Default: unaffected
  • affected from 0 to V1.1.6.36 (excl.)
Vendor NETGEAR
Product RAX54S
Versions Default: unaffected
  • affected from 0 to V1.1.6.36 (excl.)
Vendor NETGEAR
Product RAX54Sv2
Versions Default: unaffected
  • affected from 0 to V1.1.6.36 (excl.)

Solutions

Devices with automatic updates enabled may already have this patch applied. If not, please check the firmware version and update it to the latest. Fixed in:

ProductFixed VersionRAX41 (EoS) Nighthawk AX5 5-Stream AX3600 WiFi Router V1.1.6.36 https://www.netgear.com/support/product/rax41/ RAX41v2 Nighthawk AX5 5-Stream AX3600 WiFi Router V1.1.6.36 https://www.netgear.com/support/product/rax41v2/ RAX42 (EoS) Nighthawk AX5 5-Stream AX4200 WiFi Router V1.1.6.36 https://www.netgear.com/support/product/rax42/ RAX42v2 Nighthawk AX5 5-Stream AX4200 WiFi Router V1.1.6.36 https://www.netgear.com/support/product/rax42v2/ RAX43 Nighthawk AX5 5-Stream AX4200 WiFi Router V1.1.6.36 https://www.netgear.com/support/product/rax43/ RAX43v2 Nighthawk AX5 5-Stream AX4200 WiFi Router V1.1.6.36 https://www.netgear.com/support/product/rax43v2/ RAX49S Nighthawk AX6 6-Stream AX5300 WiFi Router V1.1.6.36 https://www.netgear.com/support/product/rax49s/ RAX50 Nighthawk AX6 6-Stream AX5400 WiFi 6 Router V1.1.6.36 https://www.netgear.com/support/product/rax50/ RAX50v2 Nighthawk AX6 6-Stream AX5400 WiFi 6 Router V1.1.6.36 https://www.netgear.com/support/product/rax50v2/ RAX54S Nighthawk AX6 6-Stream AX5400 WiFi Router V1.1.6.36 https://www.netgear.com/support/product/rax54s/ RAX54Sv2 Nighthawk AX6 6-Stream AX5400 WiFi Router V1.1.6.36 https://www.netgear.com/support/product/rax54sv2/

Models marked (EoS) have reached End-of-Support phase, and no security updates are planned. NETGEAR strongly recommends that you retire these devices and upgrade to a newer NETGEAR device for continued security support.

Credits

  • tmotfl finder

References

Problem Types

  • CWE-121 Stack-based buffer overflow CWE

Impacts

  • CAPEC-100 Overflow Buffers