CVE-2019-14363: NETGEAR WNDR3400V3 Firmware

Critical severity, CVSS 9.8. EPSS: 3.1% chance of exploitation in the next 30 days.

A stack-based buffer overflow in the upnpd binary running on NETGEAR WNDR3400v3 routers with firmware version 1.0.1.18_1.0.63 allows an attacker to remotely execute arbitrary code via a crafted UPnP SSDP packet.

Affected products

• NETGEAR WNDR3400V3 Firmware: from 1.0.1.18, up to and including 1.0.1.24

Published 2019-07-28. Last modified 2026-06-17.