CVE-2025-9533: Totolink t10 Firmware

Critical severity, CVSS 9.8. EPSS: 10.8% chance of exploitation in the next 30 days.

A vulnerability has been found in TOTOLINK T10 4.1.8cu.5241_B20210927. Affected is an unknown function of the file /formLoginAuth.htm. The manipulation of the argument authCode with the input 1 leads to improper authentication. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

Affected products

• Totolink t10 Firmware: version 4.1.8cu.5241_b20210927 only

Published 2025-08-27. Last modified 2026-06-17.