How severe is CVE-2025-12946?

CVE-2025-12946 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over an adjacent network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-12946 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-12946?

CVE-2025-12946 primarily affects Netgear Rs700 Firmware. In total, 18 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-12946?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-12946 have an EU (EUVD) identifier?

Yes. CVE-2025-12946 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-202283.

When was CVE-2025-12946 published?

CVE-2025-12946 was published on 2025-12-09 and last updated on 2026-06-17.

CVE-2025-12946

CVE-2025-12946 is a high-severity vulnerability in Netgear Rs700 Firmware with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v4: 4.4
EPSS exploit prediction: 0% (19th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-202283
Weakness: CWE-20
Affected product: Netgear Rs700 Firmware
Published: 2025-12-09
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2025-12946?: 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.
How severe is CVE-2025-12946?: CVE-2025-12946 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over an adjacent network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-12946 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-12946?: CVE-2025-12946 primarily affects Netgear Rs700 Firmware. In total, 18 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-12946?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-12946 have an EU (EUVD) identifier?: Yes. CVE-2025-12946 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-202283.
When was CVE-2025-12946 published?: CVE-2025-12946 was published on 2025-12-09 and last updated on 2026-06-17.

References

Affected products (18)

cpe:2.3:o:netgear:rs700_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:rax54sv2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:rax45v2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:rax41v2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:rax50_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:raxe500_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:rax41_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:rax43_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:rax35v2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:raxe450_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:rax43v2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:rax42_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:rax45_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:rax50v2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:mr90_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:ms90_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:rax42v2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:rax49s_firmware:*:*:*:*:*:*:*:*

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