CVE-2021-20155: TRENDnet Tew-827dru Firmware

Critical severity, CVSS 9.8. EPSS: 1.9% chance of exploitation in the next 30 days.

Trendnet AC2600 TEW-827DRU version 2.08B01 makes use of hardcoded credentials. It is possible to backup and restore device configurations via the management web interface. These devices are encrypted using a hardcoded password of "12345678".

Affected products

• TRENDnet Tew-827dru Firmware: version 2.08b01 only

Published 2021-12-30. Last modified 2026-06-17.