CVE-2023-5399
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-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability exists that could cause tampering of files on the personal computer running C-Bus when using the File Command.
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 confidenceA path traversal vulnerability (CWE-22) in the C-Bus File Command allows attackers to manipulate file path inputs using directory traversal sequences (such as '../') to escape intended directories and access or tamper with arbitrary files on the host system where C-Bus is running.
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< 1.16.4CVSS 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
- High
CVSS:3.1/AV:N/AC:L/PR:N/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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Identify if C Bus Toolkit is installedCheck for Schneider Electric Spacelogic C Bus Toolkit installation by searching program files directories, or run 'Get-ItemProperty' on registry keys under HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall for installed applications containing 'C Bus' or 'Spacelogic'Affected if The application is present on the system
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Check installed version against affected rangeLocate the installed version number through the application's About dialog, or search for version info in registry or installation directory, then compare numerically to 1.16.4Affected if The installed version is lower than 1.16.4 (e.g., 1.16.3, 1.15.0, etc.)
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Verify File Command module is in useReview application configuration files or logs for usage of the File Command feature, which handles file path inputs on the C-Bus systemAffected if File Command feature is configured or actively used in the environment
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Inspect for unauthorized file access patternsReview application and system logs for file access operations containing '../' sequences or unexpected directory escapes, and compare against expected file operation pathsAffected if Logs show file path inputs containing traversal sequences or access to files outside intended C-Bus directories
If C Bus Toolkit version is below 1.16.4 AND the File Command feature is enabled, the environment is vulnerable to path traversal attacks.
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.
dbcve · scoped1.16.4
Implement strict input validation and path sanitization on all file path parameters in the File Command, restrict operations to explicitly allowed directories using allowlist validation, and apply least-privilege file system permissions.
1.16.4
- Verify current installation of Spacelogic C Bus Toolkit by checking the installed version
- Navigate to the official Schneider Electric download portal at download.schneider-electric.com
- Locate and download Spacelogic C Bus Toolkit version 1.16.4 or later
- Install the updated version following standard installation procedures
- Verify the new version is correctly installed
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation3.0 h
- Implementation8.0 h
- Testing5.0 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 $5,040.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-5399 — 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-2023-5399 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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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- 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
- No spam, self-promotion, credentials, or personal data