Buffer overflow vulnerability in some NETGEAR Nighthawk routers
Summary
| CVE | CVE-2026-11733 |
|---|---|
| State | PUBLISHED |
| Assigner | NETGEAR |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-08-11 16:17:26 UTC |
| Updated | 2026-09-09 02:59:07 UTC |
| Description | A buffer overflow vulnerability in the listed NETGEAR models allows a device administrator to temporarily interrupt the normal operation of the affected device. |
Risk And Classification
Primary CVSS: v4.0 1.1 LOW from a2826606-91e7-4eb6-899e-8484bd4575d5
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:N/R:U/V:D/RE:L/U:Amber
EPSS: 0.003260000 probability, percentile 0.251410000 (date 2026-08-31)
Problem Types: CWE-121 | CWE-121 CWE-121 Stack-based buffer overflow
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 4.0 | a2826606-91e7-4eb6-899e-8484bd4575d5 | Secondary | 1.1 | LOW | 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/C... |
| 4.0 | CNA | CVSS | 1.1 | LOW | 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/A... |
| 3.1 | [email protected] | Primary | 4.9 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N |
CVSS v4.0 Breakdown
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:N/R:U/V:D/RE:L/U:Amber
CVSS v3.1 Breakdown
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Hardware | Netgear | Rax41 | - | All | All | All |
| Hardware | Netgear | Rax41v2 | - | All | All | All |
| Operating System | Netgear | Rax41v2 Firmware | All | All | All | All |
| Operating System | Netgear | Rax41 Firmware | All | All | All | All |
| Hardware | Netgear | Rax42 | - | All | All | All |
| Hardware | Netgear | Rax42v2 | - | All | All | All |
| Operating System | Netgear | Rax42v2 Firmware | All | All | All | All |
| Operating System | Netgear | Rax42 Firmware | All | All | All | All |
| Hardware | Netgear | Rax43 | - | All | All | All |
| Hardware | Netgear | Rax43v2 | - | All | All | All |
| Operating System | Netgear | Rax43v2 Firmware | All | All | All | All |
| Operating System | Netgear | Rax43 Firmware | All | All | All | All |
| Hardware | Netgear | Rax49s | - | All | All | All |
| Operating System | Netgear | Rax49s Firmware | All | All | All | All |
| Hardware | Netgear | Rax50 | - | All | All | All |
| Hardware | Netgear | Rax50v2 | - | All | All | All |
| Operating System | Netgear | Rax50v2 Firmware | All | All | All | All |
| Operating System | Netgear | Rax50 Firmware | All | All | All | All |
| Hardware | Netgear | Rax54s | - | All | All | All |
| Hardware | Netgear | Rax54sv2 | - | All | All | All |
| Operating System | Netgear | Rax54sv2 Firmware | All | All | All | All |
| Operating System | Netgear | Rax54s Firmware | All | All | All | All |
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | NETGEAR | RAX41 | affected V1.1.6.36 custom | Not specified |
| CNA | NETGEAR | RAX41v2 | affected V1.1.6.36 custom | Not specified |
| CNA | NETGEAR | RAX42 | affected V1.1.6.36 custom | Not specified |
| CNA | NETGEAR | RAX42v2 | affected V1.1.6.36 custom | Not specified |
| CNA | NETGEAR | RAX43 | affected V1.1.6.36 custom | Not specified |
| CNA | NETGEAR | RAX43v2 | affected V1.1.6.36 custom | Not specified |
| CNA | NETGEAR | RAX49S | affected V1.1.6.36 custom | Not specified |
| CNA | NETGEAR | RAX50 | affected V1.1.6.36 custom | Not specified |
| CNA | NETGEAR | RAX50v2 | affected V1.1.6.36 custom | Not specified |
| CNA | NETGEAR | RAX54S | affected V1.1.6.36 custom | Not specified |
| CNA | NETGEAR | RAX54Sv2 | affected V1.1.6.36 custom | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| www.netgear.com/support/product/rax43 | a2826606-91e7-4eb6-899e-8484bd4575d5 | www.netgear.com | Product |
| www.netgear.com/support/product/rax43v2 | a2826606-91e7-4eb6-899e-8484bd4575d5 | www.netgear.com | Product |
| www.netgear.com/support/product/rax50v2 | a2826606-91e7-4eb6-899e-8484bd4575d5 | www.netgear.com | Product |
| kb.netgear.com/000070887/August-2026-NETGEAR-Security-Advisory | a2826606-91e7-4eb6-899e-8484bd4575d5 | kb.netgear.com | Vendor Advisory |
| www.netgear.com/support/product/rax49s | a2826606-91e7-4eb6-899e-8484bd4575d5 | www.netgear.com | Product |
| www.netgear.com/support/product/rax42v2 | a2826606-91e7-4eb6-899e-8484bd4575d5 | www.netgear.com | Product |
| www.netgear.com/support/product/rax41v2 | a2826606-91e7-4eb6-899e-8484bd4575d5 | www.netgear.com | Product |
| www.netgear.com/support/product/rax42 | a2826606-91e7-4eb6-899e-8484bd4575d5 | www.netgear.com | Product |
| www.netgear.com/support/product/rax41 | a2826606-91e7-4eb6-899e-8484bd4575d5 | www.netgear.com | Product |
| www.netgear.com/support/product/rax50 | a2826606-91e7-4eb6-899e-8484bd4575d5 | www.netgear.com | Product |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: tmotfl (en)
Additional Advisory Data
Solutions
CNA: 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.