CVE-2026-75121CWE-78command-injection

CVE-2026-75121

High · published August 29, 2026

CVSS v3.1
7.2
EPSS
1%
Percentile
73.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.2 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
8.6 · CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.01462 · 73.4th percentile
Weakness
CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Published
2026-08-29T00:19Z
References (2)
https://www.planet.com.tw/en/support/security-advisory/10 · [email protected]https://www.vulncheck.com/advisories/planet-gs-4210-16p2s-command-injection-via-dispatcher-cgi-web-vlan-membership-edit-dialog-post · [email protected]
EPSS history
Timeline
  • 30 AUG 16:19Z
    EPSS moved — → 1%
    epss
  • 28 AUG 15:29Z
    PLANET GS-4210-16P2S Command Injection via dispatcher.cgi web_vlan_membership_edit_dialog_post
    cvelistv5