---
title: "CVE-2026-120228: WAVLINK WN553X1-B - Command Injection"
description: "WAVLINK WN553X1-B V260403_2.0.0 contains a command injection caused by manipulation of group_id/group_name arguments in /bin/ioos ioos Service, letting remote attackers execute arbitrary OS commands, exploit requires network access."
url: https://panop.io/threat-heartbeat/CVE-2026-120228/
---

# CVE-2026-120228 WAVLINK WN553X1-B - Command Injection

WAVLINK WN553X1-B V260403\_2.0.0 contains a command injection caused by manipulation of group\_id/group\_name arguments in /bin/ioos ioos Service, letting remote attackers execute arbitrary OS commands, exploit requires network access.

CVSS base score 9.9 /10

Critical

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

EPSS

1.65% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-120228)

## Details

Type

Command Injection

Impact

Remote Code Execution

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Published

1 November 2026

Updated

3 November 2026

Weakness

[CWE-77](https://cwe.mitre.org/data/definitions/77.html)

## Vendor fix

Update to the latest version provided by the vendor.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-120228](https://nvd.nist.gov/vuln/detail/CVE-2026-120228)
- [https://vuldb.com/vuln/429587/cti](https://vuldb.com/vuln/429587/cti)
- [https://github.com/senxitoyshuyi-ui/IOT-CVE/blob/main/vulns/WAVLINK%20WN553X1-B%20Router.md](https://github.com/senxitoyshuyi-ui/IOT-CVE/blob/main/vulns/WAVLINK%20WN553X1-B%20Router.md)
- [https://vuldb.com/cve/CVE-2026-120228](https://vuldb.com/cve/CVE-2026-120228)
- [https://vuldb.com/submit/919151](https://vuldb.com/submit/919151)
- [https://vuldb.com/vuln/429587](https://vuldb.com/vuln/429587)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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