CVE-2018-7527
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 buffer overflow can be triggered in LeviStudio HMI Editor, Version 1.10 part of Wecon LeviStudioU 1.8.29, and PI Studio HMI Project Programmer, Build: November 11, 2017 and prior by opening a specially crafted 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 confidenceA buffer overflow vulnerability exists in LeviStudio HMI Editor and PI Studio HMI Project Programmer when parsing specially crafted project files. Opening a malicious file can trigger the overflow, potentially leading to arbitrary code execution or denial of service.
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= 1.10<= 1.8.29<= 2017-11-11CVSS 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
- Local
- Complexity
- Low
- Privileges
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- Low
- Availability
- Low
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
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 installed LeviStudio HMI Editor versionLocate LeviStudio executable in Program Files (typically C:\Program Files\We Con\LeviStudio or similar) and check the file version property (right-click > Properties > Details), or use command: dir /s LeviStudio.exe on the systemAffected if Version equals 1.10 (Levistudio Hmi Editor) or is less than or equal to 1.8.29 (Levistudiou)
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Identify installed PI Studio HMI Project Programmer versionLocate PI Studio executable (typically in C:\Program Files\We Con\Pi Studio or similar) and check the file version property, or search for PiStudio.exe using: dir /s PiStudio.exeAffected if Version date is on or before 2017-11-11 (check file version or executable timestamp)
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Verify presence of vulnerable software via Windows Programs and FeaturesOpen Control Panel > Programs and Features (or Run: appwiz.cpl), look for We Con LeviStudio or We Con PI Studio entries and note the version columnAffected if Any We Con HMI software with version matching the affected ranges is installed
If LeviStudio (version 1.10 or <=1.8.29) or PI Studio HMI Project Programmer (<=2017-11-11) is installed and can open project files, the environment is vulnerable to this buffer overflow.
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 dataAvoid opening HMI project files from untrusted or unknown sources; apply vendor patches when available and ensure antivirus scanning of files before opening.
- Consultation4.0 h
- Implementation2.0 h
- Testing2.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2018-7527 — 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-2018-7527 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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