Vulnerability · Published Aug 28, 2026 · Assigned by VulnCheck

CVE-2026-75122PLANET GS-4210-16P2S V3 Command Injection via httpuploadcert.cgi

High 7.2

In plain English

A high-severity OS command injection in PLANET GS-4210-16P2S V3 from PLANET Technology Corp.. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 61% of all known vulnerabilities).

Severity (CVSS 3.1)7.2High

Exploit odds (30 days)0.9%top 39.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

PLANET GS-4210-16P2S V3 firmware before 3.441b260626 contains an authenticated OS command injection vulnerability in /cgi-bin/httpuploadcert.cgi. The certificate password field in a certificate upload request is incorporated into a shell command without sanitization of shell metacharacters. A remote attacker with administrator web credentials can submit a crafted certificate upload request to execute arbitrary operating-system commands on the device.

Affected products (as reported)

Vendor	Product	Versions
PLANET Technology Corp.	PLANET GS-4210-16P2S V3	0 – before 3.441b260626

Weakness: CWE-78 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

References

Vendor Advisory vendor-advisory, patch
https://www.vulncheck.com/advisories/planet-gs-4210-16p2s-command-injection-via-httpuploadcert-cgi third-party-advisory