CVE-2026-6483 HIGH

CVE-2026-6483: Wavlink WL-WN530H4 internet.cgi snprintf os command injection

Vendor Wavlink
Product WL-WN530H4
Weakness CWE-78
Published April 17, 2026
Last update April 17, 2026

CVSS base score

8.6/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

A vulnerability was found in Wavlink WL-WN530H4 20220721. This vulnerability affects the function strcat/snprintf of the file /cgi-bin/internet.cgi. The manipulation results in os command injection. It is possible to launch the attack remotely. The exploit has been made public and could be used. Upgrading to version 2026.04.16 is able to resolve this issue. Upgrading the affected component is recommended.

Key dates

02Disclosure timeline

April 17, 2026 CVE published
April 17, 2026 Record updated