CVE-2025-66495: Foxit PDF Reader Annotation Use-After-Free Remote Code Execution Vulnerability

Published Dec 19, 2025
·
Updated

A use-after-free vulnerability exists in the annotation handling of Foxit PDF Reader before 2025.2.1, 14.0.1, and 13.2.1 on Windows and MacOS. 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.

Affected Software

15 affected components
Foxit Foxit PDF Reader<2025.2.1, <14.0.1, <13.2.1
All of the following
Any of the following
Foxit PDF Editor<=13.2.1.23955
Foxit PDF Editor>=14.0.0.33046<=14.0.1.33197
Foxit PDF Editor>=2023.1.0.15510<=2023.3.0.23028
Foxit PDF Editor>=2024.1.0.23997<=2024.4.1.27687
Foxit PDF Editor>=2025.1.0.27937<=2025.2.1.33197
Foxit PDF Reader<=2025.2.1.33197
Microsoft Windows
All of the following
Any of the following
Foxit PDF Editor<=13.2.1.63315
Foxit PDF Editor>=14.0.0.33046<=14.0.1.69005
Foxit PDF Editor>=2023.1.0.15510<=2023.3.0.63083
Foxit PDF Editor>=2024.1.0.23997<=2024.4.1.66479
Foxit PDF Editor>=2025.1.0.27937<=2025.2.1.69005
Foxit PDF Reader<=2025.2.1.69005
Apple macOS

Event History

Dec 19, 2025
CVE Published
via MITRE·07:09 AM
Data Sourced
via MITRE·07:09 AM
DescriptionSeverityWeakness
Data Sourced
via NVD·07:16 AM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2025-66495?

CVE-2025-66495 is considered a high severity vulnerability due to its potential to allow arbitrary code execution.

2

How do I fix CVE-2025-66495?

To fix CVE-2025-66495, users should update Foxit PDF Reader to version 2025.2.1 or later.

3

What versions of Foxit PDF Reader are affected by CVE-2025-66495?

CVE-2025-66495 affects Foxit PDF Reader versions prior to 2025.2.1, 14.0.1, and 13.2.1.

4

What types of systems are impacted by CVE-2025-66495?

CVE-2025-66495 impacts both Windows and MacOS systems running affected versions of Foxit PDF Reader.

5

What is the nature of the vulnerability in CVE-2025-66495?

CVE-2025-66495 is a use-after-free vulnerability that occurs when handling annotations in PDFs with malicious JavaScript.

Contact

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