Description
A vulnerability in the speedtest feature of affected NETGEAR Nighthawk routers, caused by improper input validation, can allow attackers on the router's WAN side, using attacker-in-the-middle techniques (MiTM) to manipulate DNS responses and execute commands when speedtests are run. This issue affects RS700: through 1.0.7.82; RAX54Sv2 : before V1.1.6.36; RAX41v2: before V1.1.6.36; RAX50: before V1.2.14.114; RAXE500: before V1.2.14.114; RAX41: before V1.0.17.142; RAX43: before V1.0.17.142; RAX35v2: before V1.0.17.142; RAXE450: before V1.2.14.114; RAX43v2: before V1.1.6.36; RAX42: before V1.0.17.142; RAX45: before V1.0.17.142; RAX50v2: before V1.1.6.36; MR90: before V1.0.2.46; MS90: before V1.0.2.46; RAX42v2: before V1.1.6.36; RAX49S: before V1.1.6.36.
Affected products
netgear: rs700 firmware; netgear: rs700; netgear: rax54sv2 firmware; netgear: rax54sv2; netgear: rax45v2 firmware; netgear: rax45v2; netgear: rax41v2 firmware; netgear: rax41v2; netgear: rax50 firmware; netgear: rax50; netgear: raxe500 firmware; netgear: raxe500; netgear: rax41 firmware; netgear: rax41; netgear: rax43 firmware
References10
- kb.netgear.com/000070416/December-2025-NETGEAR-Security-Advisory PatchVendor Advisory
- www.netgear.com/support/product/RAX50 PatchProduct
- www.netgear.com/support/product/mr90 PatchProduct
- www.netgear.com/support/product/ms90 PatchProduct
- www.netgear.com/support/product/rax35v2 PatchProduct
- www.netgear.com/support/product/rax41 PatchProduct
- www.netgear.com/support/product/rax41v2 PatchProduct
- www.netgear.com/support/product/rax42 PatchProduct
- www.netgear.com/support/product/rax42v2 PatchProduct
- www.netgear.com/support/product/rax43 PatchProduct
Metrics
- CVSS 3.1
-
7.5
HIGH
Score source: NVD
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 4.0
-
4.4
MEDIUM
Score source: CNA
CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/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:N/AU:N/R:A/V:D/RE:M/U:Amber - EPSS — exploit probability
- 0% percentile: 25 · as of 11 November 2026
- CWE
- CWE-20
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.