CVE-2026-4166: Wavlink Wl-NU516U1

Low severity, CVSS 3.5. EPSS: 0.3% chance of exploitation in the next 30 days.

A vulnerability was found in Wavlink WL-NU516U1 240425. The impacted element is the function sub_404F68 of the file /cgi-bin/login.cgi. The manipulation of the argument homepage/hostname results in cross site scripting. The attack can be launched remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure.

Affected products

• Wavlink Wl-NU516U1: version 240425 only

Published 2026-03-16. Last modified 2026-06-17.