Description
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.
References (1)
Core 1
Core References
Scores
CVSS v3
6.5
EPSS
0.0027
EPSS Percentile
17.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-284
Status
published
Published
Aug 25, 2025
Tracked Since
Feb 18, 2026