Lantronix EDS5000 2.1.0.0R3 HTTP RPC Username os command injection

Summaryinfo

A vulnerability was found in Lantronix EDS5000 2.1.0.0R3. It has been rated as critical. The affected element is an unknown function of the component HTTP RPC Module. This manipulation of the argument Username causes os command injection. This vulnerability is registered as CVE-2025-67038. Furthermore, an exploit is available.

Detailsinfo

A vulnerability has been found in Lantronix EDS5000 2.1.0.0R3 and classified as critical. Affected by this vulnerability is an unknown function of the component HTTP RPC Module. The manipulation of the argument username with an unknown input leads to a os command injection vulnerability. The CWE definition for the vulnerability is CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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.

This vulnerability is known as CVE-2025-67038 since 12/08/2025. The exploitation appears to be easy. Technical details and also a exploit are known. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 09/04/2026). The attack technique deployed by this issue is T1202 according to MITRE ATT&CK.

It is declared as attacked. The CISA Known Exploited Vulnerabilities Catalog lists this issue since 06/23/2026 with a due date of 06/26/2026:

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 BO

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

• Lantronix

Name

• EDS5000

Version

• 2.1.0.0R3

License

• commercial

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