CVE-2021-27823: Mediateknet Netwave System

High severity, CVSS 7.5. EPSS: 1.1% chance of exploitation in the next 30 days.

An information disclosure vulnerability was discovered in /index.class.php (via port 8181) on NetWave System 1.0 which allows unauthenticated attackers to exfiltrate sensitive information from the system.

Affected products

• Mediateknet Netwave System: version 1.0 only

Published 2021-05-25. Last modified 2026-06-17.