CVE-2025-66499

High · 7.8

CVSS

7.8

EPSS

0.3%

Published

Dec 19, 2025

CISA due date

—

The record

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 packages

Ecosystem	Package	Introduced	Fixed