CVE-2026-6483

HIGH

Wavlink WL-WN530H4 internet.cgi snprintf os command injection

Title source: cna

Description

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.

References (5)

[Vdb Entry, Technical Description] https://vuldb.com/vuln/358021

[Signature, Permissions Required] https://vuldb.com/vuln/358021/cti

[Third Party Advisory] https://vuldb.com/submit/783055

[Exploit] https://github.com/dxz0069/WAVLINK-WN530H4-Command-Injection-in-set_add_routing/blob/main/vuldb_submission_report.md

View Exploit ZIP pw:eip

[Patch] https://dl.wavlink.com/firmware/RD/root_uImage_WN530H4-A_2026.04.16.bin

Scores

CVSS v3 7.2

EPSS 0.0003

EPSS Percentile 9.2%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Details

CWE

CWE-77 CWE-78

Status published

Products (2)

Wavlink/WL-WN530H4 20220721

Wavlink/WL-WN530H4 2026.04.16

Published Apr 17, 2026

Tracked Since Apr 17, 2026