CVE-2025-67038

Description

An issue was discovered in Lantronix EDS5000 2.1.0.0R3. The HTTP RPC module executes a shell command to write logs when user's authentication fails. The username is directly concatenated with the command without any sanitization. This allow attackers to inject arbitrary OS commands into the username parameter. Injected commands are executed with root privileges.

Severity scores

Each score is shown as its source gave it. They are not averaged or merged.

• 9.8CVSS 3.1, Criticalfrom the CNA (icscert)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
• 9.3CVSS 4.0, Criticalfrom the CNA (icscert)CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

What to do

• Latronix has released the following updates addressing this vulnerability. For more information, see the Latronix Vulnerability Library ( https://www.lantronix.com/technical-support/security-updates/vulnerability-disclosure-policy/vulnerability-library/?_gl=16c8bez_upMQ.._gaMzQwNjk5ODI5LjE3ODI5MTM3NTk._ga_M2G6RLT5L3*czE3ODI5MTM3NTgkbzEkZzAkdDE3ODI5MTM3NTgkajYwJGwwJGgw ).CNA solution statement
• EDS5000 series: Upgrade to version 2.2.0.0R1 or later. The patch can be found here:  https://ltrxdev.atlassian.net/wiki/spaces/LTRXTS/pages/2538438657/Latest+Firmware+for+the+EDS5000+series+EDS5008+EDS5016+EDS5032CNA solution statement
• G520 series: Upgrade to version 2.6.0.4R6 or later. The patch can be found here:  https://ltrxdev.atlassian.net/wiki/spaces/LTRXTS/pages/1889828865/Latest+firmware+for+the+G520+Series+G526+G526RP+G527+G528CNA solution statement
• X300 series: Upgrade to version 2.6.0.4R6 or later. The patch can be found here:  https://ltrxdev.atlassian.net/wiki/spaces/LTRXTS/pages/2135261185/Latest+firmware+for+the+X300+Series+X300+X303+X304CNA solution statement
• E210 series: Upgrade to version 3.21.0.0R1 or later. The patch can be found here:  https://ltrxdev.atlassian.net/wiki/spaces/LTRXTS/pages/1914404865/Latest+firmware+ePack+for+the+E210+Series+E213+E214+E215+E218+Cellular+RoutersCNA solution statement
• Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.CISA KEV required action

Historical context and remediation

This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.

No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.

Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.

CNA context is abbreviated; consult the original record for the complete statements.

Read the original CVE record.

Affected products

Timeline

1. 11 Mar 2026 Published
2. 23 Jun 2026 Added to the CISA KEV catalogue

Weakness

• CWE-78

References

• www.lantronix.com
• www.cisa.gov
• github.com