PT-2025-52616 · Lantronix · Eds3008Ps1Ns Firmware+1

Published 2025-12-19 · Updated 2026-03-15 · CVE-2025-67039

Positive Technologies (AI Summary)

CVSS v3.1

9.1

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions Lantronix EDS3000PS version 3.1.0.0R2

Description A security issue exists in Lantronix EDS3000PS version 3.1.0.0R2 where authentication on management pages can be bypassed. This bypass is achieved by appending a specific suffix to the URL and submitting an Authorization header utilizing 'admin' as the username. Successful exploitation allows attackers to bypass authentication. Reports indicate that attackers are chaining this authentication bypass with OS command injection flaws to gain root access on Lantronix devices, potentially enabling lateral movement across network infrastructure.

Recommendations Update to a newer version that contains a fix for this vulnerability. As a temporary workaround, restrict access to the management pages of the Lantronix EDS3000PS device.

Fix

Authentication Bypass Using an Alternate Path or Channel

Weakness Enumeration

CWE-288

Related Identifiers

CVE-2025-67039

Affected Products

Eds3008Ps1Ns Firmware

Eds3016Ps1Ns Firmware

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2025-67039 · Security Note
• https://twitter.com/CVEnew/status/2033194337203622185 · Twitter Post
• https://cisa.gov/news-events/ics-advisories/icsa-26-069-02 · Note
• http://lantronix.com · Note
• https://t.me/CVEtracker/40278 · Telegram Post
• http://eds3000ps.com · Note
• https://twitter.com/aviatrixtrc/status/2031776995479097767 · Twitter Post