CVE-2025-63362: Waveshare RS232/485 To Wifi Eth (b) Firmware

Critical severity, CVSS 9.8. EPSS: 0.6% chance of exploitation in the next 30 days.

Waveshare RS232/485 TO WIFI ETH (B) Serial to Ethernet/Wi-Fi Gateway Firmware V3.1.1.0: HW 4.3.2.1: Webpage V7.04T.07.002880.0301 allows attackers to set the Administrator password and username as blank values, allowing attackers to bypass authentication.

Affected products

• Waveshare RS232/485 To Wifi Eth (b) Firmware: version 3.1.1.0 only

Published 2025-12-04. Last modified 2026-06-17.