CVE-2026-15513

Medium

Description

A security flaw has been discovered in Wavlink WL-NU516U1 260515. This affects the function wlink_uci_set_value of the file /cgi-bin/adm.cgi. Performing a manipulation of the argument lan_ip results in os command injection. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks. You should 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

CVSS6.3

Exploit probability—

ProductWavlink Wl-nu516u1 Firmware

PublishedJul 13, 2026

First seenJul 13, 2026

Weakness typeCWE-78OS command injection CWE-77Command injection

How to fix

Patches

dl.wavlink.com/firmware/RD/WINSTAR_NU516U1-WO-A-2026-06-22-5ccde97-mt7628-squashfs-sysupgrade.bin

Affected products

Product	Affected versions	Fixed in
wavlink wl-nu516u1_firmware	260515	—

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