CVE-2026-6483

HIGH

Wavlink WL-WN530H4 internet.cgi snprintf os command injection

Title source: cna
STIX 2.1

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)

Core 5
Core References
Vdb Entry, Technical Description vdb-entry technical-description
VDB-358021 | Wavlink WL-WN530H4 internet.cgi snprintf os command injection
https://vuldb.com/vuln/358021
Signature, Permissions Required signature permissions-required
VDB-358021 | CTI Indicators (IOB, IOC, TTP, IOA)
https://vuldb.com/vuln/358021/cti
Third Party Advisory third-party-advisory
Submit #783055 | https://github.com/dxz0069/WAVLINK-WN530H4-Command-Injection-in- WN530H4 (AC1200 Dual-Band Wi-Fi Router) Firmware: WN530H4-WAVLINK_20220721 Improper Neutralization of Special Elements used in an OS Comman
https://vuldb.com/submit/783055

Scores

CVSS v3 7.2
EPSS 0.1413
EPSS Percentile 96.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact total

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