Command Injection in Wavlink WL-WN579A3 Wireless Router
CVE-2026-2526

5.3MEDIUM

Key Information:

Vendor

Wavlink

Status
Wl-wn579a3
Vendor
CVE Published:
16 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-2526?

A command injection vulnerability exists in the Wavlink WL-WN579A3 device affecting the multi_ssid function in the /cgi-bin/wireless.cgi file. The issue arises from improper handling of the SSID2G2 argument, allowing remote attackers to execute arbitrary commands on the device. This vulnerability is significant for network security, as it can be exploited without authentication. The vendor has been made aware but has not responded to the disclosure, raising concerns regarding timely remediation and security practices.

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Affected Version(s)

WL-WN579A3 20210219

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-2026-2526 - Proof of Concept

References

https://vuldb.com/?id.346114
vdb-entrytechnical-description
https://vuldb.com/?ctiid.346114
signaturepermissions-required
https://vuldb.com/?submit.748073
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
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

kdb3169 (VulDB User)
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