CVE-2025-66499: Foxit PDF Reader PDF Parsing Heap-Based Buffer Overflow Remote Code Execution Vulnerability

High severity · published Dec 19, 2025

CVE-2025-66499

Foxit PDF Reader PDF Parsing Heap-Based Buffer Overflow Remote Code Execution Vulnerability

7.8

CVSS

0.3%

EPSS

On KEV

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.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack vector

Local

Complexity

Low

Privileges

None

User interaction

Required

Confidentiality

High

Integrity

High

Availability

High

Scope

Unchanged

Exploitation

Is it being used?

Exploit prediction (EPSS)0.3% · higher than 23% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

Foxit PDF Editor · Foxit Software Inc.

Versions 2025.2.1 and earlier; Versions 14.0.1 and earlier; Versions 13.2.1 and eariler · source: vendor

Foxit PDF Reader · Foxit Software Inc.

Versions 2025.2.1 and earlier; Versions 14.0.1 and earlier; Versions 13.2.1 and eariler · source: vendor

Pdf Editor · Foxit

through 13.2.1.23955; 14.0.0.33046 through 14.0.1.33197; 2023.1.0.15510 through 2023.3.0.23028; 2024.1.0.23997 through 2024.4.1.27687; 2025.1.0.27937 through 2025.2.1.33197; through 13.2.1.63315; +4 more · source: NVD

Pdf Reader · Foxit

through 2025.2.1.33197; through 2025.2.1.69005 · source: NVD

Affected product

Foxit PDF Editor

Foxit Software Inc.

All Foxit PDF Editor CVEs

References

NVD

https://nvd.nist.gov/vuln/detail/CVE-2025-66499

CVE.org

https://www.cve.org/CVERecord?id=CVE-2025-66499

Vendor Advisory

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