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Pdf EditorApplication · Foxit

CVE-2025-66493

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 AcroForm handling of Foxit PDF Reader and Foxit PDF Editor before 2025.2.1,14.0.1 and 13.2.1 on Windows . When opening a PDF containing specially crafted JavaScript, a pointer to memory that has already been freed may be accessed or dereferenced, 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 and Editor's AcroForm handling allows specially crafted JavaScript within a PDF to access memory that has already been freed. This can lead to arbitrary code execution when a user opens a malicious PDF file.

MitigationUpdate Foxit PDF Reader and Foxit PDF Editor to versions 2025.2.1, 14.0.1, or 13.2.1 or later to remediate this vulnerability.

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. Check if Foxit PDF software is installed
    Look for Foxit PDF Reader or Foxit PDF Editor in the program list (Control Panel > Programs and Features), or check common installation paths such as C:\Program Files\Foxit Software or C:\Program Files (x86)\Foxit Software
    Affected if Foxit PDF Reader or Foxit PDF Editor is installed on the system
  2. Determine the installed Foxit version
    Right-click the Foxit executable (e.g., FoxitReader.exe or FoxitPDFEditor.exe), select Properties, and view the Details tab for the Product Version. Alternatively, open Foxit, go to Help > About to see the version number
    Affected if The installed version cannot be determined or the software is present but version is unknown
  3. Compare installed version to affected ranges for Foxit PDF Editor
    For Foxit PDF Editor, note that versions <= 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, and 2025.1.0.27937 through 2025.2.1.33197 are vulnerable. Match your installed version against these ranges
    Affected if The installed Foxit PDF Editor version falls within any of the affected ranges listed
  4. Compare installed version to affected ranges for Foxit PDF Reader
    For Foxit PDF Reader, note that versions <= 2025.2.1.33197 are vulnerable. If your installed version is 2025.2.1.33197 or lower, it is affected
    Affected if The installed Foxit PDF Reader version is 2025.2.1.33197 or lower

If Foxit PDF Reader or Foxit PDF Editor is installed and the installed version falls within the affected ranges listed for the respective product, the environment is vulnerable to this CVE.

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 and Foxit PDF Editor to versions 2025.2.1, 14.0.1, or 13.2.1 or later to remediate this vulnerability.

Recommended fix High confidence

Foxit PDF Reader: 2025.2.1 or later; Foxit PDF Editor: 13.2.1+, 14.0.1+, or latest 2023/2024 release

  1. 1. Identify the currently installed Foxit PDF Reader or Foxit PDF Editor version by opening the application and navigating to Help > About (or similar)
  2. 2. For Foxit PDF Reader users: Upgrade to version 2025.2.1 or later from the official Foxit website at www.foxit.com
  3. 3. For Foxit PDF Editor version 13.x users: Upgrade to version 13.2.1 or later
  4. 4. For Foxit PDF Editor version 14.x users: Upgrade to version 14.0.1 or later
  5. 5. For Foxit PDF Editor version 2023.x users: Upgrade to version 2023.3.0 or later (or the latest 2023 release)
  6. 6. For Foxit PDF Editor version 2024.x users: Upgrade to version 2024.4.1 or later (or the latest 2024 release)
  7. 7. After upgrading, verify the new version by checking Help > About
  8. 8. Exercise caution when opening PDF files from untrusted sources, as the vulnerability is triggered by specially crafted JavaScript within PDF files
Caveat Minor: Standard upgrade; ensure compatibility with any PDF form scripts or plugins

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

Fix this in Pdf Editor Scoped from the published advisory
  • Consultation2.0 h
  • Implementation2.0 h
  • Testing1.0 h
  • Review / QA1.0 h
6.0 hours of engineering $1,090
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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-2025-66493 in production — separate from our analysis above.

No notes yet

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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