CVE-2020-12126: Wavlink WN530H4 Firmware

Critical severity, CVSS 9.8. EPSS: 1.3% chance of exploitation in the next 30 days.

Multiple authentication bypass vulnerabilities in the /cgi-bin/ endpoint of the WAVLINK WN530H4 M30H4.V5030.190403 allow an attacker to leak router settings, change configuration variables, and cause denial of service via an unauthenticated endpoint.

Affected products

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

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