---
id: CVE-2026-120279
title: WAVLINK WN536AX6-A openvpn_cli protocol.csp os command injection
summary: >-
  A flaw has been found in WAVLINK WN536AX6-A V260507. The affected element is
  an unknown function of the file /protocol.csp of the component openvpn_cli
  Handler. Executing a manipulation of the argument file_id can lead to os
  command inje…
severity: critical
cvss: 10
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R'
cvssSource: cna
cwe:
  - CWE-78
  - CWE-77
vendor: WAVLINK
product: WN536AX6-A
affected:
  - WN536AX6-A V260507
ssvc:
  exploitation: poc
  automatable: 'yes'
  technicalImpact: total
  timestamp: '2026-11-02T14:28:42.685378Z'
exploitAvailable: true
published: '2026-11-02'
updated: '2026-11-02'
sourceUpdated: '2026-11-02T14:29:01.188Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-120279'
references:
  - url: 'https://vuldb.com/vuln/429623'
    label: >-
      VDB-429623 | WAVLINK WN536AX6-A openvpn_cli protocol.csp os command
      injection
  - url: 'https://vuldb.com/vuln/429623/cti'
    label: 'VDB-429623 | CTI Indicators (IOB, IOC, TTP, IOA)'
  - url: 'https://vuldb.com/cve/CVE-2026-120279'
    label: CVE-2026-120279 | CVE Analysis and Report
  - url: 'https://vuldb.com/submit/919788'
    label: 'Submit #919788 | WAVLINK WN536AX6 V260507 CWE-78'
  - url: >-
      https://github.com/pipiyyb/cve/blob/main/WAVLINK%20WN536AX6-A/WN536AX6-A_file_id.md
tags:
  - cve.org
  - exploit-available
epss: 0.01989
epssPercentile: 0.80695
ingestedAt: '2026-11-05T19:30:42.657Z'
---

## Overview

A flaw has been found in WAVLINK WN536AX6-A V260507. The affected element is an unknown function of the file /protocol.csp of the component openvpn_cli Handler. Executing a manipulation of the argument file_id can lead to os command injection. The attack can be launched remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure.

## Affected

- `WN536AX6-A V260507`

## Remediation

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