CVE-2025-66499: Foxit PDF Reader PDF Parsing Heap-Based Buffer Overflow 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-190

Description

A heap-based buffer overflow vulnerability exists in the PDF parsing of Foxit PDF Reader when processing specially crafted JBIG2 data. An integer overflow in the calculation of the image buffer size may occur, 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; through 13.2.1.63315
Foxit Pdf Reader: through 2025.2.1.33197; through 2025.2.1.69005

References

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

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