CVE-2025-56764: Trivisionsecurity Trivision Nc-227wf Firmware

Medium severity, CVSS 5.3. EPSS: 0.3% chance of exploitation in the next 30 days.

Trivision NC-227WF firmware 5.80 (build 20141010) login mechanism reveals whether a username exists or not by returning different error messages ("Unknown user" vs. "Wrong password"), allowing an attacker to enumerate valid usernames.

Affected products

• Trivisionsecurity Trivision Nc-227wf Firmware: version 5.80 only

Published 2025-09-29. Last modified 2026-06-17.