CVE-2018-14814
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 · uneditedWECON Technology PI Studio HMI versions 4.1.9 and prior and PI Studio versions 4.2.34 and prior lacks proper validation of user-supplied data, which may result in a read past the end of an allocated object.
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 confidenceOut-of-bounds read vulnerability in WECON Technology PI Studio HMI (versions 4.1.9 and prior) and PI Studio (versions 4.2.34 and prior) due to insufficient validation of user-supplied data, allowing an attacker to read past the end of an allocated buffer.
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<= 4.2.34<= 4.1.9CVSS 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
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/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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Confirm PI Studio installationCheck if WeCON PI Studio or PI Studio HMI software is installed on the system. Look for installation directories or use system inventory tools to identify WeCON software packages.Affected if The software is present on the system
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Locate version informationFind the installed version by checking the software's about dialog, help menu, or installation directory for version files. Common locations include the program folder, registry entries for installed software, or the executable file properties.Affected if Version cannot be determined or software is found
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Compare against affected versionsIf PI Studio HMI is installed, verify the version is greater than 4.1.9. If PI Studio is installed, verify the version is greater than 4.2.34. Versions 4.1.9 and prior for HMI, or 4.2.34 and prior for PI Studio, are within the affected range.Affected if Installed version is 4.1.9 or lower for PI Studio HMI, or 4.2.34 or lower for PI Studio
The system is affected if WECON PI Studio or PI Studio HMI is installed with a version number at or below the affected ranges (4.1.9 for HMI, 4.2.34 for PI Studio).
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 dataUpdate to PI Studio HMI version 4.1.10 or later and PI Studio version 4.2.35 or later. If updating is not immediately feasible, restrict network access to HMI systems and implement defense-in-depth controls.
- Consultation4.0 h
- Implementation6.0 h
- Testing6.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2018-14814 — 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-2018-14814 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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