CVE-2019-6838
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 CWE-863: Incorrect Authorization vulnerability exists in U.motion Server (MEG6501-0001 - U.motion KNX server, MEG6501-0002 - U.motion KNX Server Plus, MEG6260-0410 - U.motion KNX Server Plus, Touch 10, MEG6260-0415 - U.motion KNX Server Plus, Touch 15), which could allow a user with low privileges to delete a critical file.
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 · moderate confidenceThe U.motion Server contains an incorrect authorization vulnerability (CWE-863) that allows authenticated users with low privileges to delete critical system files. The application fails to properly validate authorization permissions before allowing file deletion operations, enabling privilege escalation through the file deletion mechanism.
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< 1.3.7< 1.3.7< 1.3.7< 1.3.7CVSS 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
- None
- Integrity
- High
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/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 U.motion Server device modelLocate the Schneider Electric device model number on the physical device label or in the system information page of the web interface. Confirm it is one of: Meg6501 0001, Meg6501 0002, Meg6260 0410, or Meg6260 0415.Affected if The device model matches one of the four affected model numbers.
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Check the installed firmware versionAccess the U.motion Server admin interface or system settings and locate the firmware version information. Compare it against the affected version range.Affected if The firmware version is lower than 1.3.7.
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Verify if low-privilege user accounts existReview the user management section of the U.motion Server and list all user accounts. Identify any accounts assigned privileges below administrative level.Affected if Low-privilege (non-admin) user accounts are present in the system.
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Confirm file deletion functionality is accessibleTest whether authenticated users with standard or limited privileges can access file deletion or file management features within the U.motion Server interface or API endpoints.Affected if Low-privilege users can access file deletion operations.
You are affected if your device is a Schneider Electric Meg6501 or Meg6260 model running firmware version lower than 1.3.7 AND low-privilege users can access file deletion features.
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 data1.3.7
Apply vendor patches when available. Until then, restrict network access to the U.motion Server to trusted users only, monitor for unauthorized access attempts, and implement additional access controls around sensitive file operations.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2019-6838 — 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-2019-6838 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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- Version or environment caveats, and links to real fixes
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