CVE-2020-7554
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-119 Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability exists in IGSS Definition (Def.exe) version 14.0.0.20247 that could cause Remote Code Execution when malicious CGF (Configuration Group File) file is imported to IGSS Definition.
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 confidenceA CWE-119 buffer overflow vulnerability exists in IGSS Definition (Def.exe) version 14.0.0.20247 within the CGF (Configuration Group File) import functionality. When a malicious CGF file is imported, the improper bounds checking allows an attacker to overflow a memory buffer and achieve Remote Code Execution.
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<= 14.0.0.20247CVSS 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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Locate IGSS Definition installationSearch for Def.exe in typical installation directories such as C:\Program Files\Schneider Electric\IGSS\ or C:\Program Files (x86)\Schneider Electric\IGSS\, or use a file search for Def.exe across the systemAffected if Def.exe is not found - IGSS is likely not installed
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Determine Def.exe versionRight-click Def.exe, select Properties, then view the Details tab to find the Product Version. Alternatively, right-click the file, select Properties, go to the Version tab, and read the File Version fieldAffected if Version number displayed is 14.0.0.20247 or lower (for example, 14.0.0.20200, 14.0.0.18000, etc.)
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Identify CGF import functionalityLaunch IGSS Definition (Def.exe), navigate to the menu options typically found under File or Import, and look for CGF or Configuration Group File import optionsAffected if CGF import feature is present and accessible in the application interface
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Confirm vulnerability trigger conditionThe vulnerability is triggered specifically when importing a CGF file through the CGF import feature. Check if users have permissions or workflows that involve importing CGF files into IGSS DefinitionAffected if CGF file import feature is enabled and usable in the environment
A system is affected if IGSS Definition (Def.exe) version 14.0.0.20247 or lower is installed AND the CGF import functionality is present and accessible to users who could import a crafted CGF file.
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 dataUpdate IGSS Definition to a patched version beyond 14.0.0.20247, and avoid importing CGF files from untrusted or unknown sources until the patch is applied.
- Consultation4.0 h
- Implementation2.0 h
- Testing4.0 h
- Review / QA2.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2020-7554 — 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-2020-7554 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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- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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