Totolink · Ca750-Poe · CVE-2026-9514
**Name of the Vulnerable Software and Affected Versions**
Totolink CA750-PoE version 6.2c.510
**Description**
An OS command injection issue exists in the Setting Handler component. The `setNetworkDiag()` function within the '/cgi-bin/cstecgi.cgi' endpoint fails to properly sanitize several arguments, allowing a remote attacker to execute arbitrary operating system commands. The affected variables include `NetDiagHost`, `NetDiagPingNum`, `NetDiagPingSize`, `NetDiagPingTimeOut`, and `NetDiagTracertHop`.
**Recommendations**
As a temporary workaround, restrict access to the '/cgi-bin/cstecgi.cgi' endpoint or disable the `setNetworkDiag()` function until a fix is available.
At the moment, there is no information about a newer version that contains a fix for this vulnerability.