CVE-2026-3704

Medium

Description

A vulnerability has been found in Wavlink NU516U1 251208. This vulnerability affects the function sub_405B2C of the file /cgi-bin/firewall.cgi of the component Incomplete Fix CVE-2025-10959. The manipulation leads to command injection. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. It is recommended to upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

SeverityMedium

CVSS4.7

Exploit probability—

ProductWavlink Wl-nu516u1 Firmware

PublishedMar 8, 2026

First seenMar 8, 2026

Weakness typeCWE-77Command injection CWE-74Injection

How to fix

Patches

dl.wavlink.com/firmware/RD/WINSTAR_NU516U1-WO-A-2026-02-27-2fcf6ae-mt7628-squashfs-sysupgrade.bin

Affected products

Product	Affected versions	Fixed in
wavlink wl-nu516u1_firmware	251208	—

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