CVE-2020-12125: Wavlink WN530H4 Firmware

Critical severity, CVSS 9.8. EPSS: 3.6% chance of exploitation in the next 30 days.

A remote buffer overflow vulnerability in the /cgi-bin/makeRequest.cgi endpoint of the WAVLINK WN530H4 M30H4.V5030.190403 allows an attacker to execute arbitrary machine instructions as root without authentication.

Affected products

• Wavlink WN530H4 Firmware: version m30h4.v5030.190403 only

Published 2020-10-02. Last modified 2026-06-17.