CVE-2025-51451: Totolink EX1200T Firmware

Critical severity, CVSS 9.8. EPSS: 0.4% chance of exploitation in the next 30 days.

In TOTOLINK EX1200T firmware 4.1.2cu.5215, an attacker can bypass login by sending a specific request through formLoginAuth.htm.

Affected products

• Totolink EX1200T Firmware: version 4.1.2cu.5215 only

Published 2025-08-13. Last modified 2026-07-05.