CVE-2018-19343
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 · uneditedThe u3d plugin 9.3.0.10809 (aka plugins\U3DBrowser.fpi) in FoxitReader.exe in Foxit Reader 9.3.0.10826 allows remote attackers to cause a denial of service (out-of-bounds read), obtain sensitive information, or possibly have unspecified other impact via a U3D sample because of a "Data from Faulting Address controls Code Flow starting at U3DBrowser!PlugInMain+0x00000000000f43ff" issue.
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 confidenceOut-of-bounds read vulnerability in the U3D (Universal 3D) plugin (U3DBrowser.fpi) of Foxit Reader 9.3.0.10826. The vulnerability is triggered by a specially crafted U3D sample file and allows remote attackers to cause denial of service, obtain sensitive information from memory, or potentially achieve code execution due to 'Data from Faulting Address controls Code Flow' - a condition that can enable control flow hijacking.
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= 9.3.0.10826= 9.3.0.10809CVSS 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
- None
- Availability
- High
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/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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Check Foxit Reader versionOpen Foxit Reader, then navigate to Help > About Foxit Reader, or right-click the Foxit Reader executable (FoxitReader.exe) and select Properties > Details to view the Product VersionAffected if The displayed version is exactly 9.3.0.10826
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Check U3D plugin versionLocate the U3DBrowser.fpi file in the Foxit Reader plugins folder (typically under the installation directory in a 'plugins' or 'U3D' subfolder), then right-click the file, select Properties, and check the File Version in the Details tabAffected if The U3D plugin version shown is exactly 9.3.0.10809
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Verify U3DBrowser plugin presenceSearch for the file U3DBrowser.fpi within the Foxit Reader installation directory (commonly C:\Program Files\Foxit Software\Foxit Reader\)Affected if The file U3DBrowser.fpi exists in the Foxit Reader directory, indicating the vulnerable plugin is installed
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Confirm plugin is enabledIn Foxit Reader, go to File > Preferences > Plugins (or Check plugins settings) to verify whether the U3D plugin is loaded and enabled for PDF processingAffected if The U3DBrowser plugin is listed as enabled or loaded in the plugin settings
A user is affected if Foxit Reader version 9.3.0.10826 or U3D plugin version 9.3.0.10809 is installed AND the U3DBrowser.fpi plugin is present and enabled, as the vulnerability requires the U3D plugin to be active when opening a specially crafted U3D file.
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 dataUpdate Foxit Reader to a version that includes the patched U3D plugin, or if the U3D functionality is not required, disable or remove the U3DBrowser plugin to eliminate the attack surface.
- Consultation2.0 h
- Implementation2.0 h
- Testing2.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2018-19343 — 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-2018-19343 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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