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CRITICAL · CVSS 9.8 CISA Known Exploited Vulnerability

CVE-2025-67038

Lantronix EDS5000 Code Injection Vulnerability

Lantronix EDS5000

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 authantication 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.

CVSS
9.8
CRITICAL
EPSS
13.5%
30-day exploitation
Ransomware groups
0
recorded exploiting
Published
11 Mar 2026
CWE-94

Exploitation status

CISA Known Exploited Vulnerabilities

Listed by CISA on 23 June 2026. US federal agencies were required to remediate it by 26 June 2026.

EPSS — exploitation probability

FIRST puts the probability of exploitation activity in the next 30 days at 13.5%, which is higher than 96.1% of all scored vulnerabilities. EPSS is a forecast of activity, not a measure of severity, and it is rescored daily.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Frequently asked questions

Is CVE-2025-67038 being exploited by ransomware groups?

No ransomware group in this database is currently recorded as exploiting CVE-2025-67038.

What does CVE-2025-67038 affect?

CVE-2025-67038 affects Lantronix EDS5000. 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 authantication 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.

How severe is CVE-2025-67038?

CVE-2025-67038 is rated CRITICAL with a CVSS base score of 9.8. EPSS puts the probability of exploitation in the next 30 days at 13.5%, higher than 96.1% of all scored vulnerabilities. It is listed in the CISA Known Exploited Vulnerabilities catalog, with a federal remediation deadline of 26 June 2026.

How should organisations respond to CVE-2025-67038?

Apply the vendor patch for Lantronix EDS5000 as the first priority, and treat any internet-facing instance as the most urgent. Because this vulnerability is associated with ransomware activity, also review whether the affected systems were reachable before patching, rather than assuming that patching alone closes the incident.