CVE-2026-25715: Jinan Usr IoT Technology Limited Pusr Usr-w610

Critical severity, CVSS 9.8. EPSS: 0.7% chance of exploitation in the next 30 days.

The web management interface of the device allows the administrator username and password to be set to blank values. Once applied, the device permits authentication with empty credentials over the web management interface and Telnet service. This effectively disables authentication across all critical management channels, allowing any network-adjacent attacker to gain full administrative control without credentials.

Affected products

• Jinan Usr IoT Technology Limited Pusr Usr-w610: up to and including 3.1.1.0

Published 2026-02-20. Last modified 2026-06-17.