CVE-2025-66499: foxit software inc. foxit pdf editor Integer Overflow or Wraparound

Vulnerability summary

CVE-2025-66499 is a high (CVSS 7.8) Integer Overflow or Wraparound vulnerability in foxit software inc. foxit pdf editor. EPSS estimates a 0.30% chance of exploitation in the next 30 days, higher than 21.4% of scored vulnerabilities.

Timeline

1. 19-12-2025
   PublishedVulnerability first disclosed.
2. 19-12-2025
   Last modifiedVulnerability information updated.

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.

• CWE-190Integer Overflow or WraparoundThe product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.