---
id: CVE-2025-10963
title: A security flaw has been discovered in Wavlink NU516U1 M16U1_V240425
summary: >-
  A security flaw has been discovered in Wavlink NU516U1 M16U1_V240425. Affected
  is the function sub_4016F0 of the file /cgi-bin/firewall.cgi. The manipulation
  of the argument del_flag results in command injection. It is possible to
  launch…
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-74
  - CWE-77
vendor: wavlink
product: wl-nu516u1_firmware
affected:
  - wl-nu516u1_firmware = m16u1_v240425
published: '2025-09-25'
updated: '2026-10-11'
sourceUpdated: '2026-10-11T20:10:00.200'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-10963'
references:
  - url: >-
      https://github.com/panda666-888/vuls/blob/main/wavlink/nu516u1/singlePortForwardDelete.md
    label: cna@vuldb.com
  - url: >-
      https://github.com/panda666-888/vuls/blob/main/wavlink/nu516u1/singlePortForwardDelete.md#poc
    label: cna@vuldb.com
  - url: 'https://vuldb.com/?ctiid.325831'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/?id.325831'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/?submit.652784'
    label: cna@vuldb.com
tags:
  - nvd
epss: 0.06807
epssPercentile: 0.93864
ingestedAt: '2026-10-12T14:50:33.997Z'
---

## Overview

A security flaw has been discovered in Wavlink NU516U1 M16U1_V240425. Affected is the function sub_4016F0 of the file /cgi-bin/firewall.cgi. The manipulation of the argument del_flag results in command injection. It is possible to launch the attack remotely. The exploit has been released to the public and may be exploited. The vendor was contacted early about this disclosure but did not respond in any way.

## Affected

- `wl-nu516u1_firmware = m16u1_v240425`

## Remediation

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