CVE-2026-82597

Name of the Vulnerable Software and Affected Versions TOTOLINK NR1800X version 9.1.0u.6681 B20230703

Description A remote command injection issue exists in the /cgi-bin/cstecgi.cgi endpoint. The flaw occurs within the setUssd() function when processing the ussd variable, allowing an attacker to execute arbitrary commands on the system.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability. As a temporary workaround, restrict access to the /cgi-bin/cstecgi.cgi endpoint or avoid using the ussd parameter.