CVE-2026-6483
Received Received - Intake
OS Command Injection in Wavlink WL-WN530H4 Remote Exploit

Publication date: 2026-04-17

Last updated on: 2026-04-17

Assigner: VulDB

Description
A vulnerability was found in Wavlink WL-WN530H4 20220721. This vulnerability affects the function strcat/snprintf of the file /cgi-bin/internet.cgi. The manipulation results in os command injection. It is possible to launch the attack remotely. The exploit has been made public and could be used. Upgrading to version 2026.04.16 is able to resolve this issue. Upgrading the affected component is recommended.
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Meta Information
Published
2026-04-17
Last Modified
2026-04-17
Generated
2026-06-16
AI Q&A
2026-04-17
EPSS Evaluated
2026-06-14
NVD
CVE-2026-6483
EUVD
EUVD-2026-23403
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
wavlink wl-wn530h4 2026.04.16
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-77 The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.
CWE-78 The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.
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Executive Summary

This vulnerability exists in the Wavlink WL-WN530H4 device, specifically in the strcat and snprintf functions within the /cgi-bin/internet.cgi file. It allows an attacker to perform OS command injection by manipulating these functions.

The attack can be launched remotely, meaning an attacker does not need physical access to the device to exploit this vulnerability.

An exploit for this vulnerability has been made public, increasing the risk of it being used maliciously.

Upgrading the device firmware to version 2026.04.16 resolves this issue.

Impact Analysis

This vulnerability can have severe impacts including unauthorized execution of operating system commands on the affected device.

Because the attack can be performed remotely, it could allow attackers to gain control over the device, potentially leading to data breaches, disruption of services, or further network compromise.

The CVSS scores indicate a high severity level, with impacts on confidentiality, integrity, and availability.

Mitigation Strategies

The recommended immediate step to mitigate this vulnerability is to upgrade the affected Wavlink WL-WN530H4 device to version 2026.04.16, which resolves the issue.

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