CVE-2024-8817
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 · uneditedPDF-XChange Editor U3D File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of PDF-XChange Editor. 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 U3D 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 object. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-24212.
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 confidencePDF-XChange Editor contains an out-of-bounds write vulnerability in its U3D file parsing functionality. The flaw results from insufficient validation of user-supplied data during U3D parsing, allowing an attacker to write beyond the bounds of an allocated object. Successful exploitation enables arbitrary code execution within the context of the current user 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= 10.3.0.386= 10.3.0.386CVSS 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 PDF-XChange Editor is installedCheck the installed programs list in Windows Control Panel or use 'Get-ItemProperty' in PowerShell for the registry key: HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\* and look for entries containing 'PDF-XChange Editor'Affected if The software is not present on the system, the vulnerability does not apply
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Determine the installed version of PDF-XChange EditorOpen PDF-XChange Editor, go to Help > About, or check the version in Add/Remove Programs. The affected version is exactly 10.3.0.386Affected if The installed version is 10.3.0.386, making it vulnerable to this specific CVE
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Verify U3D parsing functionality is availableU3D is a 3D format embedded in PDF files. The vulnerability triggers when opening or processing a PDF containing a U3D object. The parsing occurs automatically when a PDF with U3D content is opened in the editorAffected if U3D parsing is a built-in feature of PDF-XChange Editor and is enabled by default when the software processes PDF files containing U3D objects
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Check for recent PDF files with U3D contentExamine recently opened PDF files for U3D/3D content, or monitor for .pdf files that may have been opened from untrusted sources. The exploit triggers specifically when parsing U3D data within a PDFAffected if A user has opened a malicious PDF file containing a crafted U3D object, triggering the out-of-bounds write vulnerability
The environment is affected if PDF-XChange Editor version 10.3.0.386 is installed and users can open or process PDF files containing U3D 3D content, which triggers the vulnerable parsing code path.
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 U3D files or visiting malicious webpages that trigger U3D parsing. Monitor for vendor patches for PDF-XChange Editor and apply updates promptly once available.
- Consultation2.0 h
- Implementation1.0 h
- Testing2.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-8817 — 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-2024-8817 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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