CVE-2018-7783
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 · uneditedSchneider Electric SoMachine Basic prior to v1.6 SP1 suffers from an XML External Entity (XXE) vulnerability using the DTD parameter entities technique resulting in disclosure and retrieval of arbitrary data on the affected node via out-of-band (OOB) attack. The vulnerability is triggered when input passed to the xml parser is not sanitized while parsing the xml project/template 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 · high confidenceSchneider Electric SoMachine Basic versions prior to v1.6 SP1 contain an XML External Entity (XXE) vulnerability. The application fails to sanitize XML input when parsing project or template files, allowing attackers to exploit DTD parameter entities to retrieve arbitrary data from the affected system via out-of-band (OOB) attacks.
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<= 1.6CVSS 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
- None
- Availability
- None
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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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Verify SoMachine Basic is installedCheck for SoMachine Basic in the program files directory (typically C:\Program Files\Schneider Electric\SoMachine Basic) or look for the application in Windows Add/Remove Programs.Affected if The application is present on the system
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Determine the installed versionRight-click on SoMachine Basic.exe, select Properties, and view the Version tab, or check the version in the application's About/Help menu.Affected if The displayed version is 1.6 or earlier, or any version prior to 1.6 SP1
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Confirm the specific version stringCompare the exact version number against the affected range. Look for versions like 1.6, 1.5, 1.4, 1.3, etc. Note that version 1.6 SP1 is the first patched release.Affected if The version shows 1.6 (without SP1) or lower
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Identify XML file processing contextDetermine if the installation has been used to open or create project files (.smb, .smbt, or similar project/template file extensions associated with SoMachine Basic).Affected if The application has been used to process project or template files containing XML content
The system is affected if SoMachine Basic version 1.6 or earlier is installed and has been used to process project or template XML files, enabling the XXE vulnerability.
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 SoMachine Basic to v1.6 SP1 or later, which includes proper XML parser configuration to disable external entity processing.
- Consultation2.0 h
- Implementation8.0 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 $4,480.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2018-7783 — 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-2018-7783 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
- No spam, self-promotion, credentials, or personal data