OS Command Injection in Wavlink Wireless Router
CVE-2026-6483

8.6HIGH

Key Information:

Vendor

Wavlink

Status
Wl-wn530h4
Vendor
CVE Published:
17 April 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-6483?

A vulnerability has been identified in the Wavlink WL-WN530H4 model, specifically within the strcat and snprintf functions of the /cgi-bin/internet.cgi file. This security flaw enables remote attackers to inject operating system commands, potentially leading to unauthorized access and control over the affected device. As this exploit has been publicly disclosed, it is essential for users to upgrade to version 2026.04.16 to effectively resolve this vulnerability and protect their network.

Affected Version(s)

WL-WN530H4 20220721

WL-WN530H4 2026.04.16

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-2026-6483 - Proof of Concept

References

https://vuldb.com/vuln/358021
vdb-entrytechnical-description
https://vuldb.com/vuln/358021/cti
signaturepermissions-required
https://vuldb.com/submit/783055
third-party-advisory

CVSS V4

Score:
8.6
Severity:
HIGH
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

ST4R (VulDB User)
.