PatchTheCVECVE-2025-4120: A vulnerability was found in Netgear JWNR2000v2 1.0.0.11
CVE-2025-4120 is a high-severity flaw (CVSS 8.8) affecting jwnr2000v2 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
A vulnerability was found in Netgear JWNR2000v2 1.0.0.11. It has been classified as critical. Affected is the function sub_4238E8. The manipulation of the argument host leads to buffer overflow. It is possible to launch the attack remotely. The vendor was contacted early about this disclosure but did not respond in any way.
Why this priority
- High severity
No fix is published yet: follow the downgrade or mitigation steps.
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2025-4120?
jwnr2000v2 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2025-4120 being exploited?
CVE-2025-4120 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2025-4120 affect?
CVE-2025-4120 affects jwnr2000v2 firmware. Severity is 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 sub_4238E8. The manipulation of the argument host leads to buffer overflow. It is possible to launch the attack remotely.
How urgent is CVE-2025-4120?
Priority 47/100. High severity
Software pages
Related CVEs
- CVE-2025-4122 MEDIUM 6.3 MITIGATE A vulnerability was found in Netgear JWNR2000v2 1.0.0.11
- CVE-2025-4121 MEDIUM 6.3 MITIGATE A vulnerability was found in Netgear JWNR2000v2 1.0.0.11