CVE-2025-67039
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedAn 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.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceThe Lantronix EDS3000PS 3.1.0.0R2 firmware contains an authentication bypass vulnerability in its web management interface. Attackers can circumvent authentication by appending a specific suffix to the management URL and simultaneously sending an Authorization header with 'admin' as the username. This grants unauthorized administrative access to the device configuration.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data= 3.1.0.0r2= 3.1.0.0r2CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify the device modelAccess the device's web management interface or check device documentation/label to confirm the exact model number (EDS3016ps1ns or EDS3008ps1ns)Affected if The device model is EDS3016ps1ns or EDS3008ps1ns
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Verify the firmware versionLog into the web management interface and navigate to the System or About page to view the installed firmware version, or use the device's CLI or SNMP interface to query the firmware versionAffected if The firmware version is exactly 3.1.0.0r2 (no other versions are listed as affected)
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Confirm web management interface accessibilityVerify that the device's web management interface (typically on HTTP/HTTPS ports 80/443) is reachable from the network where an attacker could send requestsAffected if The web management interface is network-accessible (not isolated behind a firewall or VPN)
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Test for authentication bypass conditionSend a request to the management URL with an appended specific suffix (the exact suffix is not disclosed in public advisory) while including an Authorization header with username 'admin' and any passwordAffected if The request successfully authenticates as an administrator without valid credentials, confirming the bypass is present
A device is affected only if it is an EDS3016ps1ns or EDS3008ps1ns model running firmware version 3.1.0.0r2 with its web management interface network-accessible and the specific authentication bypass is exploitable.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataApply vendor firmware patch when available; until then, restrict network access to the management interface using firewall rules or place devices behind a jump host/VPN, and monitor for suspicious requests containing unusual URL suffixes or Authorization headers.
- Consultation3.0 h
- Implementation6.0 h
- Testing4.0 h
- Review / QA2.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2025-67039 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-67039 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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