VULNERABILITY INTELLIGENCE

CVE-2026-75121

CVSS score8.6 HIGH

EPSS probability1.46%

CISA KEVNot currently listed

Published2026-08-28

Last modified2026-09-08

Description

PLANET GS-4210-16P2S V3 firmware before 3.441b260626 contains an authenticated OS command injection vulnerability in /cgi-bin/dispatcher.cgi. The web_vlan_membership_edit_dialog_post handler incorporates the memberTags POST parameter into a shell command without sanitization. A remote authenticated attacker can send a crafted memberTags value to execute arbitrary operating-system commands on the device.