CVE-2018-18391
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 · uneditedUser Privilege Escalation in Moxa ThingsPro IIoT Gateway and Device Management Software Solutions version 2.1.
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 confidenceMoxa ThingsPro IIoT Gateway and Device Management Software version 2.1 contains a privilege escalation vulnerability allowing a standard user to elevate their privileges to administrative levels. The specific attack vector and technical weakness are not detailed in available sources, but the HIGH CVSS score (8.8) indicates significant impact on confidentiality and integrity.
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= 2.1CVSS 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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/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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Confirm Moxa ThingsPro installationLocate the Moxa ThingsPro software on the system. Check for the ThingsPro application directory, service, or management interface. On Linux systems, look in common installation paths such as /opt/thingspro, /usr/local/thingspro, or check for thingspro-related processes using commands like 'ps aux | grep -i thingspro' or 'systemctl list-units | grep -i thingspro'. On Windows, check Program Files for a ThingsPro folder or look for ThingsPro services in the Services console.Affected if Moxa ThingsPro is not installed on the system
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Identify installed ThingsPro versionDetermine the exact version of the installed ThingsPro software. Check version files in the installation directory, the software's about or info page, or use command-line tools if available (such as 'thingspro --version' or checking /opt/thingspro/version). Compare the installed version against the affected range: version 2.1.Affected if The installed version is exactly 2.1
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Verify user account configurationExamine the user management system within ThingsPro. Access the ThingsPro admin interface or user configuration files to list all configured user accounts. Identify whether standard or non-administrative user accounts exist in the system.Affected if Standard or non-admin user accounts are configured in ThingsPro
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Check for privilege assignment mechanismsReview the ThingsPro user role or privilege assignment settings. Look for configuration files related to user permissions, roles, or access control lists within the ThingsPro installation directory. Examine how user privileges are defined and whether standard users can potentially modify their own privilege levels.Affected if User privilege configuration allows modification or escalation of standard user permissions
The system is likely affected if it runs Moxa ThingsPro version 2.1 with standard user accounts configured, as the privilege escalation vulnerability could allow those standard users to gain administrative access.
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 to a patched version of Moxa ThingsPro beyond version 2.1. If an immediate upgrade is not feasible, audit all user accounts and implement strict role-based access controls while restricting network access to the management interface.
- Consultation6.0 h
- Implementation12.0 h
- Testing8.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2018-18391 — 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-2018-18391 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