CVE-2023-34262
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 · uneditedFatek Automation FvDesigner FPJ File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Fatek Automation FvDesigner. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of FPJ files. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated data structure. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-18161.
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 confidenceThe vulnerability is an out-of-bounds write flaw in FvDesigner's FPJ file parser. When parsing FPJ project files, the software fails to properly validate user-supplied data before writing to memory, allowing an attacker to write past the end of an allocated buffer. This memory corruption can be leveraged to achieve arbitrary code execution in the context of the current process.
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= 1.6.24CVSS 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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Confirm FvDesigner installationCheck for FvDesigner installation by searching for the executable. Typical install locations include C:\Program Files\Fatek\Fvdesigner\ or C:\Program Files (x86)\Fatek\Fvdesigner\. Also check the Windows Programs and Features list for 'FvDesigner' or 'Fatek Fvdesigner'.Affected if FvDesigner is found installed on the system
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Identify installed versionLocate the FvDesigner executable (typically named FvDesigner.exe or similar) and check its file properties. Right-click the executable, select Properties, and view the Version tab to find the product version. Alternatively, run the application and check Help > About, or search for version information in the installation directory.Affected if The installed version is 1.6.24
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Check for FPJ file handling capabilitySearch the system for .fpj file associations. Check Windows registry under HKEY_CLASSES_ROOT\.fpj to see if FvDesigner is associated with this file extension. Also search for recent .fpj files in user directories or document folders.Affected if FPJ file association with FvDesigner exists or FPJ files have been opened with FvDesigner
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Inspect FPJ processing activityReview Windows Event logs, particularly Application logs, for entries related to FvDesigner opening FPJ files. Check recent documents or recent file paths within the FvDesigner application data folders.Affected if FPJ files have been opened or processed by FvDesigner on this system
The environment is affected if Fatek FvDesigner version 1.6.24 is installed and the system processes FPJ 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.
From vendor dataAvoid opening untrusted FPJ files from unverified sources. Restrict network access to workstations running FvDesigner and apply any vendor patches when available. Consider running the application in a sandboxed or isolated environment to limit the impact of successful exploitation.
- Consultation6.0 h
- Implementation12.0 h
- Testing8.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-34262 — 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-2023-34262 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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