CVE-2026-2528
Unknown Unknown - Not Provided
Command Injection in Wavlink WL-WN579A3 Wireless CGI Endpoint

Publication date: 2026-02-16

Last updated on: 2026-04-29

Assigner: VulDB

Description
A vulnerability was identified in Wavlink WL-WN579A3 up to 20210219. Affected by this vulnerability is the function Delete_Mac_list of the file /cgi-bin/wireless.cgi. The manipulation of the argument delete_list leads to command injection. Remote exploitation of the attack is possible. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.
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Meta Information
Published
2026-02-16
Last Modified
2026-04-29
Generated
2026-06-16
AI Q&A
2026-02-16
EPSS Evaluated
2026-06-14
NVD
CVE-2026-2528
EUVD
EUVD-2026-6132
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
wavlink wl-wn579a3_firmware to 2021-02-19 (inc)
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-74 The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.
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Impact Analysis

This vulnerability can impact you by allowing an attacker to remotely execute arbitrary commands on your Wavlink WL-WN579A3 router without authentication.

Such unauthorized command execution can compromise the confidentiality, integrity, and availability of your device.

An attacker could potentially take control of the device, disrupt its normal operation, or use it as a foothold for further attacks within your network.

Compliance Impact

I don't know

Detection Guidance

This vulnerability can be detected by checking if the Wavlink WL-WN579A3 router is running firmware up to version 20210219 and if the /cgi-bin/wireless.cgi endpoint is accessible.

Since the vulnerability involves command injection via the delete_list argument in the Delete_Mac_list function, detection can involve sending crafted HTTP requests to this endpoint to test for command injection behavior.

No specific detection commands are provided in the available resources.

Mitigation Strategies

There are no known mitigations or vendor patches available for this vulnerability as the vendor did not respond to the disclosure.

The recommended immediate step is to replace the affected Wavlink WL-WN579A3 device with an alternative product that is not vulnerable.

Executive Summary

CVE-2026-2528 is a command injection vulnerability found in the Wavlink WL-WN579A3 wireless router, specifically in the Delete_Mac_list function of the /cgi-bin/wireless.cgi file.

The vulnerability occurs because the delete_list argument is improperly handled, allowing an attacker to inject arbitrary commands remotely without authentication.

This flaw is classified under CWE-77, meaning the product constructs commands using externally influenced input without properly neutralizing special characters, leading to unauthorized command execution.

A proof-of-concept exploit is publicly available, and the vendor did not respond to early notifications about this issue.

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