Is this vulnerability remotely exploitable?

Yes. An attacker who can reach the web management interface over the network can send crafted POST requests to `/cgi-bin/wireless.cgi` and potentially exploit the vulnerability, subject to any authentication controls in place.

Does an attacker need valid credentials to exploit this issue?

It depends on how the device is configured. If the vulnerable endpoints require authentication and no bypass is available, an attacker would need credentials or another way to impersonate an authenticated session. Misconfigurations, default credentials, or exposed guest-management functions can reduce the effective access barrier.

What is the safest general fix pattern for developers or vendors?

Refactor the affected handlers to avoid constructing shell commands from user input and instead use safe, parameterized system APIs. Combine strict input validation with the removal of shell invocation in CGI logic wherever possible.

Severity:

CRITICAL RISK

(9.8)

OS Command Injection (CWE-77) in Wavlink WL-WN578W2 Wireless POST Handler

CVE-2026-4164

Published:

Mar 16, 2026

Status:

Deferred

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

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May 6, 2026

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HIGH RISK

HIGH

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Privilege Escalation via Bypassed Access Control

May 6, 2026

Vulnerability Type

Category:

OS Command Injection

CWE:

CWE-74;CWE-77

Impact:

Remote Code Execution

Severity:

CRITICAL RISK

(9.8)

CVSS Version:

3.1

Vulnerability Type

Category:

OS Command Injection

CWE:

CWE-74;CWE-77

Impact:

Remote Code Execution

Severity:

CRITICAL RISK

(9.8)

CVSS Version:

3.1

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OS Command Injection (CWE-77) in Wavlink WL-WN578W2 Wireless POST Handler

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

HIGH RISK

HIGH

(8.6)

Server-Side Request Forgery (CWE-918) in OpenClaw Zalo Plugin sendPhoto

HIGH RISK

HIGH

(8.8)

Authorization Bypass (CWE-863) in OpenClaw Matrix Room Control Commands

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

Ship clean & secure code faster

Ship clean & secure code faster

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