CVE-2025-44178

Medium severity, CVSS 6.5. EPSS: 0.3% chance of exploitation in the next 30 days.

DASAN GPON ONU H660WM H660WMR210825 is susceptible to improper access control under its default settings. Attackers can exploit this vulnerability to gain unauthorized access to sensitive information and modify its configuration via the UPnP protocol WAN sides without any authentication.

Published 2025-08-25. Last modified 2026-06-17.