Stack-based buffer overflow vulnerability in some NETGEAR Nighthawk models
Summary
| CVE | CVE-2026-11735 |
|---|---|
| State | PUBLISHED |
| Assigner | NETGEAR |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-08-11 16:17:27 UTC |
| Updated | 2026-08-12 08:17:14 UTC |
| Description | 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. |
Risk And Classification
Primary CVSS: v4.0 1.9 LOW from a2826606-91e7-4eb6-899e-8484bd4575d5
CVSS:4.0/AV:A/AC:H/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/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:Y/R:U/V:D/RE:L/U:Amber
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 | 1.9 | LOW | CVSS:4.0/AV:A/AC:H/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/C... |
| 4.0 | CNA | CVSS | 1.9 | LOW | CVSS:4.0/AV:A/AC:H/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/A... |
CVSS v4.0 Breakdown
CVSS:4.0/AV:A/AC:H/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/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:Y/R:U/V:D/RE:L/U:Amber
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | NETGEAR | R7000 | affected * custom | Not specified |
| CNA | NETGEAR | RAX20 | affected * custom | Not specified |
| CNA | NETGEAR | RAX35v2 | affected V1.0.16.132 custom | Not specified |
| CNA | NETGEAR | RAX41 | affected * custom | Not specified |
| CNA | NETGEAR | RAX41v2 | affected V1.1.4.28 custom | Not specified |
| CNA | NETGEAR | RAX42 | affected * custom | Not specified |
| CNA | NETGEAR | RAX42v2 | affected V1.1.4.28 custom | Not specified |
| CNA | NETGEAR | RAX43 | affected V1.0.16.132 custom | Not specified |
| CNA | NETGEAR | RAX43v2 | affected V1.1.4.28 custom | Not specified |
| CNA | NETGEAR | RAX45 | affected * custom | Not specified |
| CNA | NETGEAR | RAX49S | affected V1.1.4.28 custom | Not specified |
| CNA | NETGEAR | RAX50 | affected V1.0.16.132 custom | Not specified |
| CNA | NETGEAR | RAX50S | affected V1.0.16.132 custom | Not specified |
| CNA | NETGEAR | RAX50v2 | affected V1.1.4.28 custom | Not specified |
| CNA | NETGEAR | RAX54Sv2 | affected V1.1.4.28 custom | Not specified |
| CNA | NETGEAR | RAX54v2 | affected V1.1.4.28 custom | Not specified |
| CNA | NETGEAR | RAXE450 | affected * custom | Not specified |
| CNA | NETGEAR | RAXE500 | affected V1.2.14.114 custom | Not specified |
| CNA | NETGEAR | XR1000 | affected V1.1.0.22 custom | Not specified |
| CNA | NETGEAR | XR1000v2 | affected V1.1.0.22 custom | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| www.netgear.com/support/product/rax43 | a2826606-91e7-4eb6-899e-8484bd4575d5 | www.netgear.com | |
| www.netgear.com/support/product/rax20 | a2826606-91e7-4eb6-899e-8484bd4575d5 | www.netgear.com | |
| www.netgear.com/support/product/rax50s | a2826606-91e7-4eb6-899e-8484bd4575d5 | www.netgear.com | |
| www.netgear.com/support/product/rax43v2 | a2826606-91e7-4eb6-899e-8484bd4575d5 | www.netgear.com | |
| www.netgear.com/support/product/rax50v2 | a2826606-91e7-4eb6-899e-8484bd4575d5 | www.netgear.com | |
| www.netgear.com/support/product/xr1000v2 | a2826606-91e7-4eb6-899e-8484bd4575d5 | www.netgear.com | |
| kb.netgear.com/000070887/August-2026-NETGEAR-Security-Advisory | a2826606-91e7-4eb6-899e-8484bd4575d5 | kb.netgear.com | |
| www.netgear.com/support/product/rax49s | a2826606-91e7-4eb6-899e-8484bd4575d5 | www.netgear.com | |
| www.netgear.com/support/product/xr1000 | a2826606-91e7-4eb6-899e-8484bd4575d5 | www.netgear.com | |
| www.netgear.com/support/product/rax42v2 | a2826606-91e7-4eb6-899e-8484bd4575d5 | www.netgear.com | |
| www.netgear.com/support/product/raxe450 | a2826606-91e7-4eb6-899e-8484bd4575d5 | www.netgear.com | |
| www.netgear.com/support/product/rax41v2 | a2826606-91e7-4eb6-899e-8484bd4575d5 | www.netgear.com | |
| www.netgear.com/support/product/rax42 | a2826606-91e7-4eb6-899e-8484bd4575d5 | www.netgear.com | |
| www.netgear.com/support/product/rax54sv2 | a2826606-91e7-4eb6-899e-8484bd4575d5 | www.netgear.com | |
| www.netgear.com/support/product/r7000 | a2826606-91e7-4eb6-899e-8484bd4575d5 | www.netgear.com | |
| www.netgear.com/support/product/rax45 | a2826606-91e7-4eb6-899e-8484bd4575d5 | www.netgear.com | |
| www.netgear.com/support/product/rax35v2 | a2826606-91e7-4eb6-899e-8484bd4575d5 | www.netgear.com | |
| www.netgear.com/support/product/rax41 | a2826606-91e7-4eb6-899e-8484bd4575d5 | www.netgear.com | |
| www.netgear.com/support/product/rax50 | a2826606-91e7-4eb6-899e-8484bd4575d5 | www.netgear.com | |
| www.netgear.com/support/product/raxe500 | a2826606-91e7-4eb6-899e-8484bd4575d5 | www.netgear.com | |
| 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: SmallS (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 VersionR7000 (EoS) Nighthawk AC1900 Smart WiFi Dual Band Gigabit RouterEOSRAX20 (EoS) 4-Stream AX1800 WiFi 6 RouterEOSRAX35v2 Nighthawk AX4 4-Stream AX3000 WiFi 6 Router V1.0.16.132 https://www.netgear.com/support/product/rax35v2/ RAX41 (EoS) Nighthawk AX5 5-Stream AX3600 WiFi RouterEOSRAX41v2 Nighthawk AX5 5-Stream AX3600 WiFi Router V1.1.4.28 https://www.netgear.com/support/product/rax41v2/ RAX42 (EoS) Nighthawk AX5 5-Stream AX4200 WiFi RouterEOSRAX42v2 Nighthawk AX5 5-Stream AX4200 WiFi Router V1.1.4.28 https://www.netgear.com/support/product/rax42v2/ RAX43 Nighthawk AX5 5-Stream AX4200 WiFi Router V1.0.16.132 https://www.netgear.com/support/product/rax43/ RAX43v2 Nighthawk AX5 5-Stream AX4200 WiFi Router V1.1.4.28 https://www.netgear.com/support/product/rax43v2/ RAX45 (EoS) Nighthawk AX6 6-Stream AX4300 WiFi RouterEOSRAX49S Nighthawk AX6 6-Stream AX5300 WiFi Router V1.1.4.28 https://www.netgear.com/support/product/rax49s/ RAX50 Nighthawk AX6 6-Stream AX5400 WiFi 6 Router V1.0.16.132 https://www.netgear.com/support/product/rax50/ RAX50S (EoS) Nighthawk AX6 6-Stream AX5400 WiFi 6 Router V1.0.16.132 https://www.netgear.com/support/product/rax50s/ RAX50v2 Nighthawk AX6 6-Stream AX5400 WiFi 6 Router V1.1.4.28 https://www.netgear.com/support/product/rax50v2/ RAX54Sv2 Nighthawk AX6 6-Stream AX5400 WiFi Router V1.1.4.28 https://www.netgear.com/support/product/rax54sv2/ RAX54v2 Nighthawk AX6 6-Stream AX5400 WiFi RouterV1.1.4.28RAXE450 (EoS) Nighthawk AXE10000 Tri-Band WiFi 6E RouterEOSRAXE500 Nighthawk AX12 12-Stream AXE11000 Tri-Band WiFi 6E Router V1.2.14.114 https://www.netgear.com/support/product/raxe500/ XR1000 Nighthawk WiFi 6 Pro Gaming Router V1.1.0.22 https://www.netgear.com/support/product/xr1000/ XR1000v2 Nighthawk WiFi 6 Pro Gaming Router V1.1.0.22 https://www.netgear.com/support/product/xr1000v2/ 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.