Home/CVE/A vulnerability in the speedtest feature of affected NETGEAR Nighthawk routers, caused by improper input validation, can
CVE

CVE-2025-12946

A vulnerability in the speedtest feature of affected NETGEAR Nighthawk routers, caused by improper input validation, can

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.

HIGH · CVSS 7.5 EPSS 0.00053
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-20Improper Input Validation
▤

Affected Products & Versions

18
netgear rs700 firmware< 1.0.9.6
netgear rax54sv2 firmware< 1.1.6.36
netgear rax45v2 firmware< 1.1.6.36
netgear rax41v2 firmware< 1.1.6.36
netgear rax50 firmware< 1.2.14.114
netgear raxe500 firmware< 1.2.14.114
netgear rax41 firmware< 1.0.17.142
netgear rax43 firmware< 1.0.17.142
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · a2826606-91e7-4eb6-899e-8484bd4575d5
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD09 Dec 2025 · 05:15 PM
CVSS VectorCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

18
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://kb.netgear.com/000070416/December-2025-NETGEAR-Security-AdvisoryPatchVendor Advisory
https://www.netgear.com/support/product/RAX50PatchProduct
https://www.netgear.com/support/product/mr90PatchProduct
https://www.netgear.com/support/product/ms90PatchProduct
https://www.netgear.com/support/product/rax35v2PatchProduct
https://www.netgear.com/support/product/rax41PatchProduct
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