CVE-2026-3696: Totolink n300rh Firmware

Critical severity, CVSS 9.8. EPSS: 3% chance of exploitation in the next 30 days.

A vulnerability was found in Totolink N300RH 6..1c.1353_B20190305. The affected element is the function setWiFiWpsConfig of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Performing a manipulation results in os command injection. The attack can be initiated remotely. The exploit has been made public and could be used.

Affected products

• Totolink n300rh Firmware: version 6.1c.1353_b20190305 only

Published 2026-03-08. Last modified 2026-06-17.