CVE-2026-7548: Totolink NR1800X

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

A vulnerability was detected in Totolink NR1800X 9.1.0u.6279_B20210910. This affects the function sub_41A68C of the file /cgi-bin/cstecgi.cgi. Performing a manipulation of the argument setUssd results in command injection. The attack is possible to be carried out remotely. The exploit is now public and may be used.

Affected products

• Totolink NR1800X: version 9.1.0u.6279_B20210910 only

Published 2026-05-01. Last modified 2026-06-17.