---
id: CVE-2026-120229
title: WAVLINK WN553X1-B ioos sub_416B50 os command injection
summary: >-
  A vulnerability has been found in WAVLINK WN553X1-B 260403_2.0.0. This issue
  affects the function sub_416B50 of the file /bin/ioos. The manipulation of the
  argument file_id leads to os command injection. The attack is possible to be
  carr…
severity: critical
cvss: 9.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/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: WN553X1-B
affected:
  - WN553X1-B 260403_2.0.0
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-11-05T15:44:23.469116Z'
exploitAvailable: true
published: '2026-11-01'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T15:44:40.547Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-120229'
references:
  - url: 'https://vuldb.com/vuln/429588'
    label: VDB-429588 | WAVLINK WN553X1-B ioos sub_416B50 os command injection
  - url: 'https://vuldb.com/vuln/429588/cti'
    label: 'VDB-429588 | CTI Indicators (IOB, IOC, TTP, IOA)'
  - url: 'https://vuldb.com/cve/CVE-2026-120229'
    label: CVE-2026-120229 | CVE Analysis and Report
  - url: 'https://vuldb.com/submit/919153'
    label: >-
      Submit #919153 | Wavlink Router Firmware V260403_2.0.0 Command Injection
      (Duplicate)
  - url: >-
      https://github.com/senxitoyshuyi-ui/IOT-CVE/blob/main/vulns/WAVLINK_WN553X1-B_check_pwd_command_injection.md
tags:
  - cve.org
  - exploit-available
epss: 0.02823
epssPercentile: 0.86623
ingestedAt: '2026-11-05T21:36:00.915Z'
---

## Overview

A vulnerability has been found in WAVLINK WN553X1-B 260403_2.0.0. This issue affects the function sub_416B50 of the file /bin/ioos. The manipulation of the argument file_id leads to os command injection. The attack is possible to be carried out remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure.

## Affected

- `WN553X1-B 260403_2.0.0`

## Remediation

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