CVE-2025-4120: NETGEAR JWNR2000V2 Firmware

Critical severity, CVSS 9.8. EPSS: 1% chance of exploitation in the next 30 days.

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.

Affected products

• NETGEAR JWNR2000V2 Firmware: version 1.0.0.11 only

Published 2025-04-30. Last modified 2026-06-17.