---
id: CVE-2026-15513
title: A security flaw has been discovered in Wavlink WL-NU516U1 260515
summary: >-
  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 ca…
severity: medium
cvss: 6.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L'
cwe:
  - CWE-77
  - CWE-78
published: '2026-07-13'
updated: '2026-07-13'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-15513'
references:
  - url: >-
      https://dl.wavlink.com/firmware/RD/WINSTAR_NU516U1-WO-A-2026-06-22-5ccde97-mt7628-squashfs-sysupgrade.bin
    label: cna@vuldb.com
  - url: 'https://github.com/0xcc12138/wavlink-nu516u1-csrf-command-injection-'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/cve/CVE-2026-15513'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/submit/847517'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/377842'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/377842/cti'
    label: cna@vuldb.com
tags:
  - nvd
ingestedAt: '2026-07-13T00:22:56.872Z'
epss: 0.01817
epssPercentile: 0.77786
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.