How severe is CVE-2025-4121?

CVE-2025-4121 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2025-4121 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-4121?

CVE-2025-4121 affects Netgear Jwnr2000v2 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-4121?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-4121 have an EU (EUVD) identifier?

Yes. CVE-2025-4121 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-12724.

When was CVE-2025-4121 published?

CVE-2025-4121 was published on 2025-04-30 and last updated on 2026-06-17.

CVE-2025-4121

CVE-2025-4121 is a medium-severity vulnerability in Netgear Jwnr2000v2 Firmware with a CVSS 3.x base score of 6.3. 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-77.

Key facts

Severity: Medium (CVSS 3.x base score 6.3)
CVSS v2: 6.5
CVSS v4: 5.3
EPSS exploit prediction: 3% (87th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-12724
Weakness: CWE-77
Affected product: Netgear Jwnr2000v2 Firmware
Published: 2025-04-30
Last modified: 2026-06-17

Description

A vulnerability was found in Netgear JWNR2000v2 1.0.0.11. It has been declared as critical. Affected by this vulnerability is the function cmd_wireless. The manipulation of the argument host leads to command injection. The attack can be launched remotely. The vendor was contacted early about this disclosure but did not respond in any way.

Frequently asked questions

What is CVE-2025-4121?: A vulnerability was found in Netgear JWNR2000v2 1.0.0.11. It has been declared as critical. Affected by this vulnerability is the function cmd_wireless. The manipulation of the argument host leads to command injection. The attack can be launched remotely. The vendor was contacted early about this disclosure but did not respond in any way.
How severe is CVE-2025-4121?: CVE-2025-4121 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2025-4121 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-4121?: CVE-2025-4121 affects Netgear Jwnr2000v2 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-4121?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-4121 have an EU (EUVD) identifier?: Yes. CVE-2025-4121 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-12724.
When was CVE-2025-4121 published?: CVE-2025-4121 was published on 2025-04-30 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:netgear:jwnr2000v2_firmware:1.0.0.11:*:*:*:*:*:*:*

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CVE-2025-4120 — High (CVSS 8.8): A vulnerability was found in Netgear JWNR2000v2 1.0.0.11. It has been classified as critical. Affected is the function…
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