CVE-2026-75121

Name of the Vulnerable Software and Affected Versions PLANET GS-4210-16P2S versions prior to 3.441b260626

Description An authenticated OS command injection flaw exists in the '/cgi-bin/dispatcher.cgi' endpoint. The web vlan membership edit dialog post handler fails to sanitize the memberTags POST parameter before incorporating it into a shell command. This allows a remote authenticated attacker to execute arbitrary operating-system commands on the device.

Recommendations Update to version 3.441b260626 or later. Avoid using the memberTags parameter in the '/cgi-bin/dispatcher.cgi' endpoint until the update is applied.