CVE-2020-14080: TRENDnet Tew-827dru Firmware

Critical severity, CVSS 9.8. EPSS: 2.3% chance of exploitation in the next 30 days.

TRENDnet TEW-827DRU devices through 2.06B04 contain a stack-based buffer overflow in the ssi binary. The overflow allows an unauthenticated user to execute arbitrary code by POSTing to apply_sec.cgi via the action ping_test with a sufficiently long ping_ipaddr key.

Affected products

• TRENDnet Tew-827dru Firmware: up to and including 2.06b04

Published 2020-06-15. Last modified 2026-06-17.