CVE-2026-7786: Jinan Usr IoT Technology Limited Pusr Usr-w610 RS232/485 To Wi-Fi/ethernet Converter

Critical severity, CVSS 9.8. EPSS: 0.5% chance of exploitation in the next 30 days.

Jinan USR IOT Technology Limited (PUSR) USR-W610 RS232/485 to Wi-Fi/Ethernet Converter device firmware contains plaintext administrative credentials embedded in the firmware image. These credentials can be extracted through firmware analysis and used to authenticate to device services.

Affected products

Published 2026-05-29. Last modified 2026-07-21.