CVE-2025-12946: A vulnerability in the speedtest feature of affected NETGEAR Nighthawk routers, caused by improper input validation…
CVE-2025-12946 · Severity: high · CVSS 7.5 · Published 2025-12-09
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.
No. Junglewise Threat Intelligence has no report of CVE-2025-12946 being exploited in the wild.
How severe is CVE-2025-12946?
High severity, with a CVSS score of 7.5, published 9 December 2025.
Which products and versions are affected?
NETGEAR Mr90, NETGEAR Mr90 Firmware, NETGEAR Ms90, NETGEAR Ms90 Firmware and 32 more. The advisory does not name versions.
Is there a fix for CVE-2025-12946?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2025-12946?
Check whether you run NETGEAR Mr90, NETGEAR Mr90 Firmware, NETGEAR Ms90 or one of the others listed. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.