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CVE-2025-67039

Lantronix Eds3008ps1ns Firmware authentication bypass

9.8 CRITICALEPSS 0.44%
  1. Published11 Mar 2026

Description

An issue was discovered in Lantronix EDS3000PS 3.1.0.0R2. The authentication on management pages can be bypassed by appending a specific suffix to the URL and by sending an Authorization header that uses "admin" as the username.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Lantronix Eds3008ps1ns Firmware3.1.0.0r2
Lantronix Eds3016ps1ns Firmware3.1.0.0r2

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

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Frequently asked

Is CVE-2025-67039 being actively exploited?

CVE-2025-67039 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.44%.

How severe is CVE-2025-67039?

CVE-2025-67039 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.44% probability of exploitation.

Which products are affected by CVE-2025-67039?

Affected products include Lantronix Eds3008ps1ns Firmware, Lantronix Eds3016ps1ns Firmware.

How do I fix CVE-2025-67039?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-67039 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.