CVE-2021-47726: Nucom 11n Wireless Router

High severity, CVSS 7.5. EPSS: 0.3% chance of exploitation in the next 30 days.

NuCom 11N Wireless Router 5.07.90 contains a privilege escalation vulnerability that allows non-privileged users to access administrative credentials through the configuration backup endpoint. Attackers can send a crafted HTTP GET request to the backup configuration page with a specific cookie to retrieve and decode the admin password in Base64 format.

Affected products

• Nucom Nucom 11n Wireless Router: version 5.07.90 only

Published 2025-12-31. Last modified 2026-06-17.