CVE-2025-7524: Totolink t6 Firmware

High severity, CVSS 8.8. EPSS: 2.9% chance of exploitation in the next 30 days.

A vulnerability was found in TOTOLINK T6 4.1.5cu.748_B20211015. It has been classified as critical. This affects the function setDiagnosisCfg of the file /cgi-bin/cstecgi.cgi of the component HTTP POST Request Handler. The manipulation of the argument ip leads to command injection. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.

Affected products

• Totolink t6 Firmware: version v4.1.5cu.748_b20211015 only

Published 2025-07-13. Last modified 2026-06-17.