CVE-2025-67038 — EDS5000 Series
CRITICALCVE-2025-67038 is a critical-severity (CVSS 9.8) OS Command Injection vulnerability in Lantronix EDS5000 series. It is in CISA's Known Exploited Vulnerabilities catalog (added 2026-06-23) — treat it as actively exploited and patch now. A fix is available — see the affected versions and patch details below.
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…
Exploitation Status
Actively exploited in the wild
- Confirmed by CISA's Known Exploited Vulnerabilities catalog on 2026-06-23. Federal agencies were required to remediate by 2026-06-26.
- CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
- A successful exploit gives an attacker total control of the affected component, not partial access.
Exploitation and automatability from CISA (KEV catalog and SSVC triage) for CVE-2025-67038.
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
Where this sits among everything scored
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.
Affected Products
EDS5000 seriesLantronixG520 seriesLantronixX300 seriesLantronixE210 seriesLantronixE220 seriesLantronixDetection & mitigation playbook
Vendor / applianceDetect
Inventory every Lantronix EDS5000 series deployment and check each version against the affected-products list above.
Fix
Apply the Lantronix EDS5000 series security patch or hotfix for CVE-2025-67038 on the affected version, following the vendor advisory for your exact build.
Workarounds
Stop passing untrusted input into the interpreter or shell: call the affected binary with an argument array rather than a composed command string, reject anything outside a strict allowlist of expected values, and run the component under an account that cannot reach beyond the work it legitimately does. Alongside that, restrict the management interface to trusted networks and apply the vendor's recommended configuration mitigations.
Frequently Asked Questions
Is CVE-2025-67038 being exploited in your environment?
Detect and block the exploit chain at execution, on systems you cannot patch yet.