CVE-2019-10971
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 · uneditedThe application (Network Configurator for DeviceNet Safety 3.41 and prior) searches for resources by means of an untrusted search path that could execute a malicious .dll file not under the application's direct control and outside the intended directories.
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 confidenceThis is an untrusted search path (DLL hijacking) vulnerability in Network Configurator for DeviceNet Safety. The application searches for .dll files using paths outside its direct control, allowing an attacker to place a malicious DLL in a location the application searches, resulting in arbitrary code execution when the application loads the rogue library.
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<= 3.41CVSS 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:3.0/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.
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Verify Omron Network Configurator For Devicenet Safety is installedCheck for the application in the system Program Files directory, typically under 'Omron' or look for 'Network Configurator for DeviceNet Safety' in Add/Remove ProgramsAffected if The application is present on the system
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Determine installed version of Network Configurator For DeviceNet SafetyRight-click the application executable, select Properties, then view the Details tab to find the File Version, or check the version listed in Add/Remove ProgramsAffected if The version is 3.41 or lower
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Verify DLL search path configurationUse Process Monitor or similar tool to monitor the application when launched, filtering for DLL load operations. Check if the application loads DLLs from user-writable directories such as the current working directory or paths in the system PATH variableAffected if The application loads DLLs from directories outside the application installation folder or from world-writable locations
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Inspect application directory for DLL filesNavigate to the installation directory (typically C:\Program Files\Omron\ or similar) and list all .dll files present. Compare against known legitimate DLLs for this applicationAffected if Unexpected or unsigned DLL files exist in the application directory
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Check for known vulnerable DLL search behaviorReview the application logs or use dependency analysis tools to determine if the application uses relative paths when loading DLLs without specifying full pathsAffected if The application uses relative DLL paths or does not enforce secure DLL loading
A user is affected if Omron Network Configurator For DeviceNet Safety version 3.41 or lower is installed and the application loads DLLs from directories outside its direct control.
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 dataRestrict DLL search paths to trusted, application-controlled directories only, and ensure all DLLs are loaded using absolute paths or secure loading mechanisms; remove world-writable directories from the search path.
- Consultation3.0 h
- Implementation6.0 h
- Testing3.0 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 $3,984.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2019-10971 — 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-2019-10971 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