CVE-2025-66493: Foxit PDF Reader AcroForm Use-After-Free Remote Code Execution Vulnerability

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-12-19 · updated 2026-06-17
Weakness: CWE-416

Description

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.

Affected products

Foxit PDF Reader: through 13.2.1.23955; from 14.0.0.33046 through 14.0.1.33197; from 2023.1.0.15510 through 2023.3.0.23028; from 2024.1.0.23997 through 2024.4.1.27687; from 2025.1.0.27937 through 2025.2.1.33197
Foxit Pdf Reader: through 2025.2.1.33197

References

https://www.foxit.com/support/security-bulletins.html

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