CVE-2021-22750
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-787: Out-of-bounds write vulnerability exists inIGSS Definition (Def.exe) V15.0.0.21041 and prior that could result in loss of data or remote code execution due to missing length checks, when a malicious CGF 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 · moderate confidenceA CWE-787 out-of-bounds write vulnerability exists in IGSS Definition (Def.exe) V15.0.0.21041 and prior. The vulnerability results from missing length checks when importing CGF files, allowing an attacker to write data beyond allocated buffer boundaries. A specially crafted malicious CGF file can trigger this condition, potentially leading to data loss or 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<= 15.0.0.21041CVSS 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 if IGSS Definition is installedLocate the IGSS Definition executable (Def.exe) on the system, typically found in the Schneider Electric IGSS installation directoryAffected if Def.exe exists on the system and matches the affected version range
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Check IGSS Definition versionRight-click on Def.exe, select Properties, and check the File Version field or use the version information dialogAffected if The version number is 15.0.0.21041 or lower
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Determine if CGF import feature is accessibleLaunch IGSS Definition and navigate to the CGF file import functionality, typically found in the File or Import menu optionsAffected if The CGF import feature is present and can be accessed by users
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Audit recent CGF file importsReview the IGSS Definition project files or logs for recently imported CGF files, checking file modification timestamps in the project directoryAffected if Any CGF files were imported from untrusted or unverified sources
The system is affected if IGSS Definition version 15.0.0.21041 or lower is installed and users have the ability to import CGF files into the application.
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 dataAvoid importing untrusted or unverified CGF files into IGSS Definition until a vendor patch addressing the missing length checks is available. Evaluate the IGSS Definition deployment for exposure to this attack vector.
- Consultation3.0 h
- Implementation6.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-22750 — 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-2021-22750 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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