CVE-2026-2529
Remote Command Injection in Wavlink WL-WN579A3 DeleteMac Function
Publication date: 2026-02-16
Last updated on: 2026-02-18
Assigner: VulDB
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| wavlink | wl-wn579a3_firmware | to 2021-02-19 (inc) |
Helpful Resources
Exploitability
| 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. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
CVE-2026-2529 is a command injection vulnerability in the Wavlink WL-WN579A3 wireless router firmware up to version 20210219. The flaw exists in the DeleteMac function within the /cgi-bin/wireless.cgi file, where improper handling of the delete_list argument allows an attacker to inject arbitrary commands. This happens because the input is not properly sanitized, enabling remote attackers to execute commands on the device without authentication.
How can this vulnerability impact me? :
This vulnerability can impact you by allowing remote attackers to execute arbitrary commands on your affected Wavlink WL-WN579A3 router without needing authentication. This can compromise the confidentiality, integrity, and availability of your device, potentially leading to unauthorized access, control over the device, disruption of network services, or further attacks within your network.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
This vulnerability can be detected by checking for the presence of the vulnerable Wavlink WL-WN579A3 router firmware version up to 20210219 and by monitoring HTTP requests to the /cgi-bin/wireless.cgi endpoint, specifically looking for suspicious or malformed delete_list parameter values that could indicate command injection attempts.
Since the vulnerability involves command injection via the delete_list argument, detection can involve inspecting network traffic for unusual commands or payloads targeting this parameter.
No specific detection commands are provided in the context, but reviewing HTTP logs for requests to /cgi-bin/wireless.cgi with delete_list parameters containing suspicious characters or command injection patterns is recommended.
What immediate steps should I take to mitigate this vulnerability?
Immediate mitigation steps include replacing the affected Wavlink WL-WN579A3 device with an alternative product, as no official patches or countermeasures have been published by the vendor.
Since the vulnerability allows remote command injection without authentication, it is critical to isolate the device from untrusted networks and restrict access to the /cgi-bin/wireless.cgi endpoint if possible.
Monitoring network traffic for exploitation attempts and disabling remote management features on the device can also help reduce risk.