CVE-2026-75122Network attack vector

Authenticated command execution via unsanitized certificate password

Published Aug 28, 2026 · Updated Aug 28, 2026

OS command injection in PLANET GS-4210-16P2S firmware before 3.441b260626 allows remote authenticated users to execute arbitrary commands. The /cgi-bin/httpuploadcert.cgi handler incorporates the certificate password into a shell command without sanitizing shell metacharacters. Administrator web credentials and a crafted certificate-upload request are required, and successful exploitation runs attacker-supplied operating-system commands on the switch.

CVSS severity8.6
High
EPSS probability0.77%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in PLANET GS-4210-16P2S firmware before 3.441b260626 allows remote authenticated users to execute arbitrary commands. The /cgi-bin/httpuploadcert.cgi handler incorporates the certificate password into a shell command without sanitizing shell metacharacters. Administrator web credentials and a crafted certificate-upload request are required, and successful exploitation runs attacker-supplied operating-system commands on the switch.

The record

CVE
CVE-2026-75122
Published
Aug 28, 2026
Updated
Aug 28, 2026
Vendor
PLANET Technology Corporation
Product
PLANET GS-4210-16P2S
Classifications
CWE-78, T1059
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Aug 28, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 28, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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  1. Affected versionversion=0 <3.441b260626

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

PLANET Technology Corporation · PLANET GS-4210-16P2Sversion=0 <3.441b260626

Published CVSS scores

8.6PLANET Technology CorporationCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
7.2PLANET Technology CorporationCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059Command and Scripting Interpreter

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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