Ecostruxure Control ExpertApplication · Schneider Electric

CVE-2020-7560

HIGH · 8.6 CVSS v3.1 Published 2020-12-11
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
89/100
Remediation priority · High
No privileges

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
A CWE-123: Write-what-where Condition vulnerability exists in EcoStruxure™ Control Expert (all versions) and Unity Pro (former name of EcoStruxure™ Control Expert) (all versions), that could cause a crash of the software or unexpected code execution when opening a malicious file in EcoStruxure™ Control Expert software.

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 confidence

A CWE-123 Write-what-where Condition vulnerability in EcoStruxure Control Expert and Unity Pro allows a malicious file to trigger arbitrary memory writes, leading to software crash or code execution. The vulnerability is triggered by opening a specially crafted file in the affected software.

MitigationAvoid opening untrusted or unverified files in EcoStruxure Control Expert until vendor patch is available; implement file whitelist policies and network segmentation for ICS environments.

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
Ecostruxure Control ExpertApplication
Affected:all versions
Unity ProApplication
Affected:all versions

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
Local
Complexity
Low
Privileges
None
User interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/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 installed software
    Check for EcoStruxure Control Expert or Unity Pro on the system. Look in typical installation directories such as C:\Program Files\Schneider Electric\ or C:\Program Files (x86)\Schneider Electric\, or use system inventory tools to scan for these applications.
    Affected if Either EcoStruxure Control Expert or Unity Pro is installed on the system.
  2. Verify software version
    Open the software and check the About or Help menu for the exact version number, or examine the executable file properties of the installed program.
    Affected if Any version of EcoStruxure Control Expert or Unity Pro is installed, since all versions are affected per the CVE.
  3. Determine if software handles untrusted files
    Review recent file access logs or check the system for any .xef, .stu, or other project files that may have been opened recently. Examine whether users routinely open files from external sources or untrusted locations.
    Affected if Users open project files from untrusted or unverified sources in EcoStruxure Control Expert or Unity Pro.
  4. Check for recent software execution
    Review Windows Event Logs, prefetch files, or SIEM records for recent execution of EcoStruxure Control Expert or Unity Pro executables.
    Affected if The affected software has been executed on the system.

If EcoStruxure Control Expert or Unity Pro is installed and users open project files with it, the environment is potentially affected since all versions contain this vulnerability.

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.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Avoid opening untrusted or unverified files in EcoStruxure Control Expert until vendor patch is available; implement file whitelist policies and network segmentation for ICS environments.

Fix this in Ecostruxure Control Expert Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing12.0 h
  • Review / QA6.0 h
30.0 hours of engineering $5,120
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Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2020-7560 — 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 sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2020-7560 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