CVE-2017-13994
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 Cross-site Scripting issue was discovered in LOYTEC LVIS-3ME versions prior to 6.2.0. The web interface lacks proper web request validation, which could allow XSS attacks to occur if an authenticated user of the web interface is tricked into clicking a malicious link.
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 confidenceCross-site scripting (XSS) vulnerability in the LOYTEC LVIS-3ME web interface (versions prior to 6.2.0) due to lack of proper web request validation. An authenticated user could be tricked into clicking a malicious link that injects malicious scripts into the web interface.
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
- None
- User interaction
- Required
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/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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Check LVIS-3ME firmware versionAccess the device web interface and navigate to the system information or firmware status page, typically found under Settings, System, or About sections. Alternatively, check via the device admin console or SNMP if available.Affected if The displayed firmware version is 6.1.1 or lower, or any version prior to 6.2.0.
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Confirm web interface is enabledVerify the LVIS-3ME web interface service is running and accessible by attempting to reach the device IP in a web browser. Look for the login page.Affected if The web interface is accessible and responds, indicating it is enabled and reachable.
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Verify authentication is configuredCheck if the web interface requires login credentials. Attempt to access the interface or review authentication settings in the device administration panel.Affected if Authentication is not enforced or default credentials remain in use, allowing an authenticated user session to be exploited.
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Identify network exposureDetermine if the LVIS-3ME device web interface is exposed to untrusted networks by reviewing firewall rules, VLAN configuration, or port forwarding settings.Affected if The web interface is accessible from networks beyond the trusted internal segment, increasing attack surface.
You are affected if the LVIS-3ME firmware version is 6.1.1 or lower (any version prior to 6.2.0) AND the web interface is enabled and accessible, allowing an attacker to trick an authenticated user into clicking a malicious link that executes XSS.
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 firmware to version 6.2.0 or later. Until then, train users to avoid clicking untrusted links and consider network segmentation to limit exposure.
- Consultation2.0 h
- Implementation3.0 h
- Testing3.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2017-13994 — 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-2017-13994 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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