CVE-2020-10639
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 · uneditedEaton HMiSoft VU3 (HMIVU3 runtime not impacted), Version 3.00.23 and prior, however, the HMIVU runtimes are not impacted by these issues. A specially crafted input file could cause a buffer overflow when loaded by the affected product.
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 confidenceEaton HMiSoft VU3 versions 3.00.23 and prior contain a buffer overflow vulnerability in the input file parsing functionality. A specially crafted malicious input file can trigger the overflow when loaded by the affected product. The HMIVU runtimes are confirmed not to be impacted by this vulnerability.
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<= 3.00.23CVSS 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
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/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.
-
Confirm HMiSoft VU3 is installedLocate the HMiSoft VU3 application on the system by checking common installation directories (e.g., C:\Program Files\Eaton\HMiSoft or C:\Eaton\HMiSoft) or search for executable files named 'HMIVU', 'HMiSoft', or similar Eaton HMI-related binariesAffected if The application is present on the system
-
Identify the firmware versionOpen the HMiSoft VU3 application and navigate to the About or System Information section typically found in the Help menu, or locate the version information in the application's main window. Alternatively, check the executable file properties (right-click the .exe file and view Details tab) for version metadataAffected if The version is 3.00.23 or lower (e.g., 3.00.22, 3.00.20, etc.)
-
Verify input file parsing capability existsExamine the HMiSoft VU3 interface for features that allow loading, importing, or parsing external input files (such as project files, configuration files, or data import functions). Check menus like File, Project, or Import for options that load external files into the applicationAffected if The application includes functionality to load or parse input files and this feature is accessible to users
-
Confirm this is HMiSoft VU3 and not HMIVU runtimeVerify that the affected component is the HMiSoft VU3 development/configuration software. The HMIVU runtime components (the runtime engine that executes HMI projects) are not affected by this vulnerability. Check the application name and type - HMiSoft VU3 refers to the configuration/development tool, while HMIVU refers to the separate runtime componentAffected if The software is specifically HMiSoft VU3 (the configuration/development application) rather than the HMIVU runtime alone
Your environment is affected if HMiSoft VU3 firmware version 3.00.23 or prior is installed and the input file parsing/loading functionality is present and accessible.
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 dataUsers should update to a patched version when available and avoid loading untrusted input files into the affected HMiSoft VU3 application until remediation is complete.
- Consultation4.0 h
- Implementation12.0 h
- Testing8.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $7,808.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2020-10639 — 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-2020-10639 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
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
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