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Pdf EditorApplication · Foxit

CVE-2025-66494

HIGH · 7.8 CVSS v3.1 Published 2025-12-19
Fix available
A fix is available. Upgrade to after 2025.2.1.33197 or later.
See remediation →
81/100
Remediation priority · High
No privileges

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 · unedited
A use-after-free vulnerability exists in the PDF file parsing of Foxit PDF Reader before 2025.2.1, 14.0.1, and 13.2.1 on Windows. A PDF object managed by multiple parent objects could be freed while still being referenced, potentially allowing a remote attacker to execute arbitrary code.

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 confidence

A use-after-free vulnerability in Foxit PDF Reader's PDF parsing allows a PDF object to be freed while still being referenced by other parent objects. When multiple parent objects manage the same PDF object, it can be prematurely deallocated while dangling references remain, leading to arbitrary code execution upon reuse of the freed memory.

MitigationUpdate Foxit PDF Reader to version 2025.2.1, 14.0.1, or 13.2.1 or later. Avoid opening untrusted PDF files from unknown or untrusted sources until the update is applied.

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
Pdf EditorApplication
Affected:<= 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
Pdf ReaderApplication
Affected:<= 2025.2.1.33197

CVSS 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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify installed Foxit product
    Check for Foxit PDF Reader or Foxit PDF Editor installation directories (typically C:\Program Files\Foxit or C:\Program Files (x86)\Foxit) or look for Foxit shortcuts in the Start Menu
    Affected if Neither Foxit PDF Reader nor Foxit PDF Editor is installed on the system
  2. Get Foxit application version
    Right-click the Foxit executable (FoxitReader.exe or FoxitEditor.exe), select Properties, and view the Details tab for the Product Version
    Affected if Unable to locate the Foxit executable or version information is unavailable
  3. Compare Reader version against affected range
    If Foxit PDF Reader is installed, compare the installed version (e.g., 2025.2.1.33197) to the affected range: any version <= 2025.2.1.33197
    Affected if Foxit PDF Reader version is 2025.2.1.33197 or any earlier version
  4. Compare Editor version against affected ranges
    If Foxit PDF Editor is installed, compare against all affected ranges: <= 13.2.1.23955; 14.0.0.33046 through 14.0.1.33197; 2023.1.0.15510 through 2023.3.0.23028; 2024.1.0.23997 through 2024.4.1.27687; 2025.1.0.27937 through 2025.2.1.33197
    Affected if Foxit PDF Editor version falls into any of the listed affected ranges

The environment is affected if Foxit PDF Reader (any version <= 2025.2.1.33197) or Foxit PDF Editor (any version in the specified ranges) is installed and the user opens a malicious PDF file.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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.

dbcve · scoped
Upgrade available Upgrade to a release after 2025.2.1.33197
Interim mitigation

Update Foxit PDF Reader to version 2025.2.1, 14.0.1, or 13.2.1 or later. Avoid opening untrusted PDF files from unknown or untrusted sources until the update is applied.

Recommended fix High confidence

Foxit PDF Reader 2025.2.1+; Foxit PDF Editor 14.0.1+ or 13.2.1+

  1. 1. Identify the installed Foxit PDF Reader or PDF Editor version from the Help > About menu
  2. 2. For Foxit PDF Reader: upgrade to version 2025.2.1 or later
  3. 3. For Foxit PDF Editor 14.x: upgrade to version 14.0.1 or later
  4. 4. For Foxit PDF Editor 13.x: upgrade to version 13.2.1 or later
  5. 5. For Foxit PDF Editor 2023.x and 2024.x: upgrade to the latest available version which should contain the security fix
  6. 6. Verify the upgrade was successful by checking Help > About shows a fixed version
  7. 7. Reject or exercise caution when opening untrusted PDF files from unknown sources
Caveat Standard upgrade; minor version differences unlikely to cause compatibility issues

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Pdf Editor Scoped from the published advisory
  • Consultation1.0 h
  • Implementation1.0 h
  • Testing2.0 h
  • Review / QA1.0 h
5.0 hours of engineering $860
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2025-66494 in production — separate from our analysis above.

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • 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
  • No spam, self-promotion, credentials, or personal data