CVE-2020-7496
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 · uneditedA CWE-88: Argument Injection or Modification vulnerability exists in EcoStruxure Operator Terminal Expert 3.1 Service Pack 1 and prior (formerly known as Vijeo XD)which could cause unauthorized write access when opening the project file.
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 confidenceCWE-88 argument injection vulnerability in EcoStruxure Operator Terminal Expert 3.1 SP1 and prior allows attackers to manipulate arguments passed during project file opening, leading to unauthorized write access to the file system. The vulnerability stems from insufficient input validation when the application processes project file paths or parameters.
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<= 3.0= 3.1CVSS 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
- 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.
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Identify installed EcoStruxure Operator Terminal Expert versionOpen the application and navigate to Help > About, or check Programs and Features (Add/Remove Programs) for the installed versionAffected if Version is 3.1 or lower (<= 3.0 or 3.1)
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Confirm product name matches vulnerable softwareVerify the installed software is specifically 'Schneider Electric EcoStruxure Operator Terminal Expert' and not a newer renamed productAffected if Product name matches EcoStruxure Operator Terminal Expert with version 3.1 or prior
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Check if project file opening feature is in useReview whether users open .STX or proprietary project files with this application, as the vulnerability exploits project file path/parameter processingAffected if Project files are opened using this application
A system is affected if EcoStruxure Operator Terminal Expert version 3.1 or any version <= 3.0 is installed and users open project files with it, since the vulnerability allows argument injection during project file processing leading to unauthorized file system write 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 version beyond Service Pack 1 where the vulnerability is patched. Additionally, enforce strict file access controls and validate project file integrity before opening to limit exposure.
- Consultation2.0 h
- Implementation6.0 h
- Testing4.0 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 $3,904.
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Free · runs locallyCheck whether your project pulls in CVE-2020-7496 — 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-2020-7496 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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- 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
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