OS Command Injection Vulnerability in WAVLINK Wireless Router
CVE-2026-120197

9.4CRITICAL

Key Information:

Vendor

Wavlink

Status
Wl-wn530hg4b
Vendor
CVE Published:
1 November 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-120197?

A vulnerability in the WAVLINK WL-WN530HG4B router allows for OS command injection through the manipulation of the 'Name' argument in the port_forward function located in /cgi-bin/wapi.cgi. This security flaw permits remote attackers to exploit the device, potentially gaining control and executing arbitrary commands. The vendor has been made aware of this issue following the vulnerability's disclosure, and it poses a significant risk to users who have not applied necessary mitigations.

Affected Version(s)

WL-WN530HG4B M_V260724

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-2026-120197 - Proof of Concept

References

https://vuldb.com/vuln/429560
vdb-entrytechnical-description
https://vuldb.com/vuln/429560/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-120197
third-party-advisory

CVSS V4

Score:
9.4
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

hackerpipi (VulDB User)
VulDB CNA Team
.