Command Injection Vulnerability in Wavlink WL-WN578W2
CVE-2026-4164

9.3CRITICAL

Key Information:

Vendor

Wavlink

Status
Wl-wn578w2
Vendor
CVE Published:
15 March 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-4164?

A vulnerability has been identified in the Wavlink WL-WN578W2, specifically in the functions Delete_Mac_list, SetName, and GuestWifi within the /cgi-bin/wireless.cgi file. This flaw allows attackers to perform command injection via manipulated POST requests. The issue can be exploited remotely, raising significant security concerns for users. Users are strongly advised to upgrade the affected component to mitigate potential threats.

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Affected Version(s)

WL-WN578W2 221110

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-4164 - Proof of Concept

References

https://vuldb.com/?id.351071
vdb-entrytechnical-description
https://vuldb.com/?ctiid.351071
signaturepermissions-required
https://vuldb.com/?submit.768292
third-party-advisory

CVSS V4

Score:
9.3
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

LtzHust (VulDB User)
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