CVE-2023-34263
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 Uninitialized Pointer 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 initialization of a pointer prior to accessing it. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-18162.
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 confidenceFatek Automation FvDesigner contains an uninitialized pointer vulnerability in its FPJ file parser. When parsing specially crafted FPJ files, the parser fails to properly initialize a pointer before dereferencing it, leading to memory corruption that can be leveraged for remote 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 installationSearch for 'FvDesigner' or 'Fatek' in installed programs (Windows: Add/Remove Programs, Linux: dpkg -l or find /opt, /usr/share), or check common installation paths like C:\Program Files\Fatek or /home/user/FvDesignerAffected if FvDesigner is installed on the system
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Identify installed FvDesigner versionCheck version information: right-click the executable in Program Files\Fatek\FvDesigner and select Properties > Details, or run 'ls -la' on the executable and check any version.txt, or launch FvDesigner and go to Help > AboutAffected if Installed version is exactly 1.6.24
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Verify FPJ file handling capabilityLaunch FvDesigner and attempt to access the File > Open or File > Import function, or check file associations for .fpj extension in the systemAffected if FPJ files can be opened or imported within FvDesigner
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Check for presence of FPJ filesSearch system for .fpj files: run 'dir /s /b C:\*.fpj' on Windows or 'find / -name "*.fpj" 2>/dev/null' on Linux, especially in shared folders or downloaded locationsAffected if FPJ files exist on the system and could be opened with vulnerable software
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Review recent FvDesigner activity logsCheck Windows Event Viewer under Application logs for FvDesigner entries, or inspect any log files in the FvDesigner installation directory under /logs or /data foldersAffected if FvDesigner has recently processed FPJ files
System is affected if FvDesigner version 1.6.24 is installed and FPJ files can be opened or have been processed by the software.
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 dataUsers should avoid opening FPJ files from untrusted sources. Organizations should implement file sanitization and employ network segmentation to limit exposure. Contact Fatek Automation for available patches.
- Consultation4.0 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-2023-34263 — 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-2023-34263 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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