High severity7.2NVD Advisory· Published Aug 28, 2026

CVE-2026-75122

Description

PLANET GS-4210-16P2S 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

Planet/Gs 4210 16p2s Firmwarellm-fuzzy
Range: <3.441b260626

Patches

Vulnerability mechanics

References

www.planet.com.tw/en/support/security-advisory/10nvd
www.vulncheck.com/advisories/planet-gs-4210-16p2s-command-injection-via-httpuploadcert-cginvd

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