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U.motionApplication · Schneider Electric

CVE-2018-7784

CRITICAL · 9.8 CVSS v3.0 Published 2018-07-03
Fix available
A fix is available. Upgrade to 1.3.4 or later.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

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 · unedited
In Schneider Electric U.motion Builder software versions prior to v1.3.4, this exploit occurs when the submitted data of an input string is evaluated as a command by the application. In this way, the attacker could execute code, read the stack, or cause a segmentation fault in the running application.

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 confidence

This is a command injection vulnerability in Schneider Electric U.motion Builder software where user-supplied input in string fields is improperly validated and executed as system commands, allowing unauthenticated attackers to achieve remote code execution with high-impact consequences.

MitigationUpgrade to U.motion Builder v1.3.4 or later. If upgrading is not immediately feasible, implement strict input validation and whitelist-based sanitization on all user input fields to prevent command injection, and restrict network exposure of the affected system.

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
U.motionApplication
Affected:< 1.3.4

CVSS 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
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.0/AV:N/AC:L/PR:N/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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify U.motion Builder version
    Locate the installed U.motion Builder software and retrieve its version number from the application, typically accessible via the software's about or system information panel, or by checking the installer package if still available
    Affected if The installed version is any version prior to 1.3.4 (for example, 1.3.0, 1.2.x, or earlier releases)
  2. Confirm network exposure of the web interface
    Determine if the U.motion Builder web interface is accessible from network segments outside the trusted internal network, which can be verified by reviewing firewall rules, NAT configurations, or reverse proxy settings that expose the service
    Affected if The U.motion Builder web service is directly reachable from untrusted networks or the internet without authentication barriers
  3. Review user input acceptance in string fields
    Examine the U.motion Builder application for any user-facing string input fields, particularly those used in configuration, labeling, or parameter definitions, which could potentially pass unsanitized input to system command execution points
    Affected if String input fields exist that accept user-supplied data without visible input validation or sanitization controls in place

You are affected if the installed U.motion Builder version is below 1.3.4 and the application accepts user input through web-accessible string fields without proper validation.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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.

dbcve · scoped
Upgrade available Upgrade to 1.3.4 or later
Fixed in 1.3.4
Interim mitigation

Upgrade to U.motion Builder v1.3.4 or later. If upgrading is not immediately feasible, implement strict input validation and whitelist-based sanitization on all user input fields to prevent command injection, and restrict network exposure of the affected system.

Recommended fix High confidence

U.motion Builder v1.3.4

  1. Back up the current U.motion Builder configuration and data before upgrading
  2. Download U.motion Builder version 1.3.4 or later from the official Schneider Electric website or support portal
  3. Review the upgrade documentation provided by Schneider Electric for any prerequisites
  4. Install the version 1.3.4 upgrade following the official installation procedures
  5. Verify the upgrade was successful by checking the software version
  6. Test that the application functions normally after the upgrade

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in U.motion Scoped from the published advisory
  • Consultation6.0 h
  • Implementation12.0 h
  • Testing6.0 h
  • Review / QA4.0 h
28.0 hours of engineering $4,980
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $7,968.

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2018-7784 in production — separate from our analysis above.

No notes yet

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What this is

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.

What belongs here
  • 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