CVE-2026-7156

Name of the Vulnerable Software and Affected Versions Totolink A8000RU version 7.1cu.643 b20200521

Description An OS command injection issue exists in the CGI Handler component. A remote attacker can manipulate the HTTP argument within the CsteSystem() function of the '/cgi-bin/cstecgi.cgi' endpoint to execute arbitrary operating system commands.

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 to minimize the risk of exploitation.