What is the CVSS score of CVE-2025-67039?

CVE-2025-67039 has a CVSS 3.1 base score of 9.1 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N. EPSS exploitation probability: 0.0%.

Which versions of Lantronix EDS3000PS are affected by CVE-2025-67039?

A critical authentication bypass vulnerability in Lantronix EDS3000PS devices allows attackers to gain unauthorized administrative access without valid credentials, potentially compromising network…

How to fix or mitigate CVE-2025-67039?

Within 24 hours: Identify all Lantronix EDS3000PS 3.1.0.0R2 devices in your environment and isolate them from untrusted networks. Within 7 days: Implement network segmentation and access controls restricting management interface access to authorized administrative networks only; enable logging and monitoring for suspicious authentication attempts. Within 30 days: Contact Lantronix for patch availability and ETA; evaluate replacement or upgrade options; conduct forensic review for evidence of exploitation.

Lantronix EDS3000PS CVE-2025-67039

CRITICAL

Authentication Bypass Using an Alternate Path or Channel (CWE-288)

2026-03-11 cve@mitre.org

Authentication Bypass

9.1

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.1 CRITICAL

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 22:06 vuln.today

CVE Published

Mar 11, 2026 - 17:16 nvd

CRITICAL 9.1

DescriptionCVE.org

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.

Articles & Coverage 1

vulnerability.circl.lu Lantronix EDS3000PS/EDS5000 Multiple Critical Vulnerabilities (CVE-2025-67034 to CVE-2025-70082) Mar 11, 2026

AnalysisAI

Critical vulnerability in Lantronix EDS serial device server (EDS5000/EDS3000PS). Multiple injection and auth bypass vulnerabilities in the management interface.

Technical ContextAI

Multiple vulnerability types in Lantronix EDS management interface.

Affected ProductsAI

Lantronix EDS5000/EDS3000PS

RemediationAI

Apply firmware update. Restrict management access.

CVE-2025-67039 vulnerability details – vuln.today

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Lantronix EDS3000PS CVE-2025-67039

Severity by source

CVSS VectorNVD

Lifecycle Timeline

DescriptionCVE.org

Articles & Coverage 1

AnalysisAI

Technical ContextAI

Affected ProductsAI

RemediationAI

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External POC / Exploit Code