CVE-2025-44178: n/a
Source CVE Database V5
Not known to be exploited · CVSS 6.5 Medium.
Data as of 25 Oct 2026, 19:02 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 20% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 25 Aug 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-25.
What to do
AI-suggested
To mitigate this vulnerability, European organizations should first verify if their network infrastructure includes affected DASAN GPON ONU models. Immediate steps include disabling UPnP services on the WAN interface if possible, or restricting access to trusted IP addresses via firewall rules. Network administrators should change default configurations to enforce strong authentication and access controls on device management interfaces. Regular firmware updates from the vendor should be monitored and applied promptly once patches become available. Network segmentation can limit exposure by isolating ONUs from critical internal systems. Additionally, continuous monitoring for unusual device behavior or unauthorized configuration changes can help detect exploitation attempts early. For ISPs, informing customers about the risk and providing secure device configurations or replacement options is advisable. Finally, employing intrusion detection systems (IDS) that can identify UPnP exploitation patterns on WAN interfaces can enhance defense.
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.