CVE-2024-8422
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 · uneditedCWE-416: Use After Free vulnerability exists that could cause arbitrary code execution, denial of service and loss of confidentiality & integrity when application user opens a malicious Zelio Soft 2 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 confidenceA Use After Free vulnerability exists in Zelio Soft 2 when parsing project files. When the application frees memory but continues to use a pointer to that freed memory, an attacker can manipulate the memory layout via a specially crafted project file to achieve arbitrary code execution or cause denial of service.
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< 5.4.2.2CVSS 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 Zelio Soft 2 versionOpen the application and navigate to Help > About, or check Add/Remove Programs in Control Panel for the installed version informationAffected if Version listed is earlier than 5.4.2.2
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Verify project file parsing capabilityConfirm the application can open and parse .zlp or other Zelio project file formats - this is core functionality and cannot be disabledAffected if The software is capable of opening project files (default behavior)
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Check for recent security updatesLook for any installed patches or updates to Zelio Soft 2 in the system update history or vendor release notesAffected if No security update to version 5.4.2.2 or later has been applied
You are affected if Zelio Soft 2 is installed and its version is earlier than 5.4.2.2, as the Use After Free vulnerability triggers when parsing specially crafted project files.
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.
dbcve · scoped5.4.2.2
Do not open untrusted or unfamiliar Zelio Soft 2 project files. Apply vendor patches when released. Consider running the application in a sandboxed or isolated environment to limit impact of potential exploitation.
5.4.2.2 or later
- Navigate to the Schneider Electric download portal at download.schneider-electric.com
- Locate and download Zelio Soft 2 version 5.4.2.2 or later
- Uninstall the current vulnerable version of Zelio Soft 2
- Install the newly downloaded fixed version (5.4.2.2 or later)
- Verify the installed version matches the fixed release
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Testing8.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,352.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-8422 — 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-2024-8422 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
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