CVE-2025-4270: Totolink a720r Firmware

High severity, CVSS 7.5. EPSS: 13.9% chance of exploitation in the next 30 days.

A vulnerability was found in TOTOLINK A720R 4.1.5cu.374. It has been classified as problematic. Affected is an unknown function of the file /cgi-bin/cstecgi.cgi of the component Config Handler. The manipulation of the argument topicurl with the input getInitCfg/getSysStatusCfg leads to information disclosure. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

Affected products

• Totolink a720r Firmware: version 4.1.5cu.374 only

Published 2025-05-05. Last modified 2026-06-17.