CVE-2025-67038: Lantronix EDS5000 Code Injection Vulnerability

Quick Answer

CISA describes CVE-2025-67038 as username-parameter command injection on Lantronix EDS5000, with commands running as root. Identify the exact EDS5008, EDS5016 or EDS5032 model, hardware revision and firmware before planning an update. The vendor download page does not establish which build fixes this CVE. Preserve device and off-device evidence; installing a newer image alone cannot prove the issue or earlier compromise is resolved.

Evidence check: Vendor evidence and unresolved source limits are described below. CISA KEV catalog 2026.10.02 was checked on October 2. Preserve the distinction between vendor publication history, catalog dates and evidence from your deployment; no patch or exploit test is claimed.

Context

Status At A Glance

Product scope	Lantronix — EDS5000
CVE	CVE-2025-67038
TechGeeks response tier	P0 — confirm an exact match and act now
CISA KEV added	2026-06-23
Vendor severity	Consult the live vendor advisory; no vendor severity is inferred from KEV status.
CVSS	Consult the live vendor advisory; no CVSS value is inferred from KEV status.
Ransomware field	Unknown — this is not the same as No; CISA has not marked the field Known.
Forensic-triage field	No in the current CISA field; organizations should still investigate when exposure or evidence warrants it.
CWE	CWE-78, CWE-94
Federal remediation date	2026-06-26 — applies to covered federal agencies; other organizations should set a risk-based deadline.

What Happened

Lantronix EDS5000 Code Injection Vulnerability. Lantronix EDS5000 contains a code injection vulnerability that could allow attackers to inject arbitrary OS commands into the username parameter. Injected commands are executed with root privileges. CISA's KEV listing confirms exploitation evidence, but it does not state how widespread the activity is or prove that any particular installation was compromised.

Affected Scope

Match the EDS5000 model and hardware revision to Lantronix's firmware notes. The October 1 release notes cover EDS5008, EDS5016 and EDS5032, and require at least 2.4.0.0R1 for hardware revision B11 or later. That hardware minimum is not a CVE-specific fix claim.

Match the exact edition, hardware or virtual platform, release, patch level, enabled feature, and management exposure. A product-family name alone is not enough to establish applicability.

Steps

What To Do Now

1. Confirm. Inventory every EDS5000 asset and record its exact version, patch level, role, relevant configuration, and exposure.
2. Preserve. Save UTC timestamps, off-device authentication, firewall, proxy, DNS, endpoint, application, and SIEM evidence before logs rotate or a disruptive change removes context.
3. Contain. Restrict unnecessary internet and management-plane access using supported controls. Follow the live advisory: Open Lantronix EDS5000 firmware information.
4. Remediate. Confirm the exact product, release, exposure, and prerequisites against the live vendor advisory, then apply the vendor-listed update or mitigation. CISA added CVE-2025-67038 to KEV on 2026-06-23.
5. Validate. Verify the resulting version or patch level, service health, logging, expected access, an expected denial, and representative dependent workflows.
6. Escalate. If exposure overlapped the vulnerable period or evidence is suspicious, treat the system as a potential incident and follow vendor and incident-response recovery guidance.

Fixed Releases And Mitigation

Investigation And Recovery

CISA's KEV record does not mark this entry for forensic triage. That field is not proof of a clean system; consult the vendor advisory for indicators and recovery guidance.

When an attacker may have gained administrative, root, SYSTEM, identity, management-plane, or code-execution access, patching alone is not an eradication claim. Preserve evidence, scope affected accounts and downstream systems, rotate exposed credentials or certificates when justified, and rebuild from a trusted source when vendor or incident-response guidance requires it.

Notes

Exploitation Evidence

Vendor statement: Lantronix's firmware notes do not supply a CVE-specific exploitation assessment. CISA independently records exploitation and a June 23 KEV addition; do not treat the download page as confirming or denying campaign activity.

CISA statement: CVE-2025-67038 was added to KEV on 2026-06-23. The ransomware field is Unknown, and the forensic-triage field is No. These are separate signals.

Validation And Boundaries

This notice does not prove that every product carrying the family name is affected, that exploitation is widespread, that a clean indicator search rules out compromise, or that a successful update restored trust. TechGeeks has not reproduced the exploit and does not replace the vendor advisory, asset inventory, vulnerability scanner, or incident-response process.

Related TechGeeks Resources

• TechGeeks Security Notice Center
• All Security Notices
• What to Do When a Device Hits CISA KEV
• Router CVE Exposure, Version, and Mitigation Checklist
• IoT Firmware Update and End-of-Support Checklist
• Live Protect and Runtime Vulnerability Shielding

References

• Lantronix advisory or support notice
• CISA guidance
• CISA guidance
• NVD CVE record
• CISA source

Wrap-Up

Record whether CVE-2025-67038 applies to your environment. If it does, assign an owner, preserve the change and investigation evidence, complete the vendor action, and document the validated result.

Correction policy: If a primary source changes affected versions, remediation, exploitation status, or recovery guidance, TechGeeks will update this page and its verification date.