CVE-2017-13996
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 · uneditedA Relative Path Traversal issue was discovered in LOYTEC LVIS-3ME versions prior to 6.2.0. The web user interface fails to prevent access to critical files that non administrative users should not have access to, which could allow an attacker to create or modify files or execute arbitrary code.
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 confidenceA relative path traversal vulnerability in the LVIS-3ME web interface allows authenticated non-administrative users to escape the intended directory restrictions and access sensitive system files. This improper access control enables file creation/modification and potentially remote code execution.
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<= 6.1.1CVSS 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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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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Confirm LVIS-3ME device modelAccess the device web interface or use the device discovery feature to identify the exact model number. Look for 'Lvis-3ME' or 'LVIS-3ME' in the device information page or SNMP sysDescr.Affected if The device is a Loytec LVIS-3ME unit.
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Check firmware versionNavigate to the web interface admin section or use the LVIS-3ME firmware update tool to retrieve the current firmware version. The version is typically displayed under 'Device Information' or 'System Status'.Affected if The installed firmware version is 6.1.1 or earlier.
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Verify web interface is enabledCheck the device network settings through the admin panel or by examining the HTTP/HTTPS service listening on ports 80/443. Confirm the web server feature is active.Affected if The LVIS-3ME web interface is enabled and accessible over the network.
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Confirm user authentication is configuredReview the user management section of the web interface to verify that authentication is required for access. Check if non-administrative user accounts exist with file access permissions.Affected if Non-administrative user accounts are created and granted web interface access.
A user is affected if they have an LVIS-3ME device running firmware version 6.1.1 or earlier with the web interface enabled and accessible to authenticated non-administrative users.
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 dataUpgrade LVIS-3ME devices to firmware version 6.2.0 or later to obtain the patch. If immediate patching is not possible, restrict network access to the web interface to trusted administrative IPs only.
- Consultation4.0 h
- Implementation6.0 h
- Testing4.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,544.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2017-13996 — 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-2017-13996 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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