CVE-2025-66496
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 · uneditedA memory corruption vulnerability exists in the 3D annotation handling of Foxit PDF Reader due to insufficient bounds checking when parsing PRC data. When opening a PDF file containing malformed or specially crafted PRC content, out-of-bounds memory access may occur, resulting in memory corruption.
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 confidenceFoxit PDF Reader fails to perform adequate bounds checking when parsing PRC (Product Representation Compact) 3D data embedded in PDF annotations. When processing a specially crafted or malformed PRC stream, the lack of proper boundary validation allows out-of-bounds memory read/write operations, leading to heap corruption and potential arbitrary code execution.
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<= 13.2.1.23955>= 14.0.0.33046, <= 14.0.1.33197>= 2023.1.0.15510, <= 2023.3.0.23028>= 2024.1.0.23997, <= 2024.4.1.27687>= 2025.1.0.27937, <= 2025.2.1.33197<= 2025.2.1.33197CVSS 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 Foxit PDF Reader versionOpen Foxit PDF Reader, go to Help > About Foxit PDF Reader, or check Programs and Features in Control Panel for the installed version numberAffected if The version number falls within <= 2025.2.1.33197 (any version up to and including this build)
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Confirm Foxit PDF Reader application in useVerify the application is Foxit PDF Reader specifically (not Foxit PDF Editor) by checking the application name in the title bar or program entryAffected if The application is Foxit PDF Reader and version is at or below 2025.2.1.33197
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Review PRC 3D annotation handling capabilityCheck if the Foxit PDF Reader instance has the capability to render 3D annotations - this is the parsing feature exploited by the vulnerability. This is a built-in feature in affected versions.Affected if The installed Foxit PDF Reader can parse and render PRC 3D data embedded in PDF annotations (default behavior in affected versions)
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Identify presence of PRC-enabled PDFsInspect any PDF files opened or to be opened for the presence of PRC (Product Representation Compact) 3D stream data within annotations. This requires examining PDF structure or using a PDF analysis tool.Affected if PDF files containing PRC 3D data in annotations are being processed by the vulnerable version
You are affected if Foxit PDF Reader version 2025.2.1.33197 or earlier is installed and PDF files containing malformed PRC 3D data in annotations are processed.
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 PDF files from untrusted sources until Foxit releases an official patch. Apply vendor-supplied updates immediately upon availability and consider disabling 3D annotation rendering as a temporary defense-in-depth measure.
- Consultation3.0 h
- Implementation2.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-66496 — 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-2025-66496 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
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- Version or environment caveats, and links to real fixes
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