Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2025-12946

Severity CVSS v4.0:
MEDIUM
Type:
CWE-20 Input Validation
Publication date:
09/12/2025
Last modified:
21/01/2026

Description

A vulnerability in the speedtest feature of affected NETGEAR Nighthawk routers, caused by improper input validation, can allow attackers on the router&amp;#39;s WAN side, using attacker-in-the-middle techniques (MiTM) to manipulate DNS responses and execute commands when speedtests are run. <br /> <br /> <br /> <br /> 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.

Impact

Vector 4.0
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/S:N/AU:N/R:A/V:D/RE:M/U:Amber CVSS v4.0 Severity and Metrics:

Base Score: 4.40 MEDIUM
Vector: 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/S:N/AU:N/R:A/V:D/RE:M/U:Amber

Attack Vector (AV): Adjacent
Attack Complexity (AC): High
Attack Requirements (AT): Present
Privileges Required (PR): None
User Interaction (UI): Active
Confidentiality (VC): High
Integrity (VI): High
Availability (VA): High
Confidentiality (SC): None
Integrity (SI): None
Availability (SA): None
Safety (S): Negligible
Automatable (AU): No
Recovery (R): Automatic
Value Density (V): Diffuse
Vulnerability Response Effort (RE): Moderate
Provider Urgency (U): Amber
Exploit Maturity (E): Unreported

Base Score 4.0
4.40
Severity 4.0
MEDIUM
Vector 3.x
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Adjacent
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x
7.50
Severity 3.x
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:netgear:rs700_firmware:*:*:*:*:*:*:*:* 1.0.9.6 (excluding)
cpe:2.3:h:netgear:rs700:-:*:*:*:*:*:*:*
cpe:2.3:o:netgear:rax54sv2_firmware:*:*:*:*:*:*:*:* 1.1.6.36 (excluding)
cpe:2.3:h:netgear:rax54sv2:-:*:*:*:*:*:*:*
cpe:2.3:o:netgear:rax45v2_firmware:*:*:*:*:*:*:*:* 1.1.6.36 (excluding)
cpe:2.3:h:netgear:rax45v2:-:*:*:*:*:*:*:*
cpe:2.3:o:netgear:rax41v2_firmware:*:*:*:*:*:*:*:* 1.1.6.36 (excluding)
cpe:2.3:h:netgear:rax41v2:-:*:*:*:*:*:*:*
cpe:2.3:o:netgear:rax50_firmware:*:*:*:*:*:*:*:* 1.2.14.114 (excluding)
cpe:2.3:h:netgear:rax50:-:*:*:*:*:*:*:*
cpe:2.3:o:netgear:raxe500_firmware:*:*:*:*:*:*:*:* 1.2.14.114 (excluding)
cpe:2.3:h:netgear:raxe500:-:*:*:*:*:*:*:*
cpe:2.3:o:netgear:rax41_firmware:*:*:*:*:*:*:*:* 1.0.17.142 (excluding)
cpe:2.3:h:netgear:rax41:-:*:*:*:*:*:*:*
cpe:2.3:o:netgear:rax43_firmware:*:*:*:*:*:*:*:* 1.0.17.142 (excluding)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools