CVE-2026-41037: Qntmnet Qn-I-470 Firmware

High severity, CVSS 8.8. EPSS: 0.3% chance of exploitation in the next 30 days.

This vulnerability exists in Quantum Networks router due to missing rate limiting and CAPTCHA protection for failed login attempts in the web-based management interface. An attacker on the same network could exploit this vulnerability by performing brute force attacks against administrative credentials, leading to unauthorized access with root privileges on the targeted device.

Affected products

• Qntmnet Qn-I-470 Firmware: version 6.1.1.b1 only

Published 2026-04-21. Last modified 2026-06-17.