CVE-2025-12946: Improper input validation in NETGEAR Nighthawk routers
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 Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
NETGEAR Nighthawk MR90 and MS90 firmwareto a version that resolves this vulnerability.Fixed in 1.0.2.46 - Upgrade
Upgrade
NETGEAR Nighthawk RAX35v2, RAX41, RAX42, RAX43, RAX45, and RAXE450 firmwareto a version that resolves this vulnerability.Fixed in 1.0.17.142 - Upgrade
Upgrade
NETGEAR Nighthawk RAX41v2, RAX42v2, RAX43v2, RAX49S, RAX50v2, and RAX54Sv2/RAX45v2 firmwareto a version that resolves this vulnerability.Fixed in 1.1.6.36 - Upgrade
Upgrade
NETGEAR Nighthawk RAX50 and RAXE500 firmwareto a version that resolves this vulnerability.Fixed in 1.2.14.114 - Upgrade
Upgrade
NETGEAR Nighthawk RS700 firmwareto a version that resolves this vulnerability.Fixed in 1.0.9.6
Event History
Frequently Asked Questions
What is the severity of CVE-2025-12946?
CVE-2025-12946 is classified as a high-severity vulnerability due to its potential to allow remote code execution.
How do I fix CVE-2025-12946?
To fix CVE-2025-12946, update affected NETGEAR Nighthawk routers to the latest firmware version.
Which NETGEAR devices are affected by CVE-2025-12946?
NETGEAR Nighthawk routers including RAX54Sv2, RAX41v2, and several others up to version limitations are affected by CVE-2025-12946.
What causes the vulnerability CVE-2025-12946?
The vulnerability CVE-2025-12946 is caused by improper input validation in the speedtest feature of the affected NETGEAR Nighthawk routers.
Can CVE-2025-12946 be exploited remotely?
Yes, CVE-2025-12946 can be exploited remotely by attackers on the router's WAN side using man-in-the-middle techniques.