CVE-2026-57256 Details
Description
When the application opens a PDF and executes JavaScript, it performs abnormal operations on the list box field, and this operation is repeated after the form is reset. During this process, the application failed to adequately verify the validity of the form objects and their internal dictionary pointers, resulting in accessing internal members of invalid or improperly initialized fields. This led to an illegal pointer read, ultimately causing the application to crash.
A use-after-free vulnerability has been identified in Foxit PDF Reader and Foxit PDF Editor for Windows and Mac. This vulnerability occurs when the application processes PDFs containing certain JavaScript, particularly in list box fields. The issue arises because the application does not properly validate the integrity of form objects and their internal references, allowing access to invalid or uninitialized fields. This flaw can be exploited to read illegal memory addresses, causing the application to crash. Furthermore, according to Foxit, this vulnerability could be exploited to execute arbitrary code.
Users can update to the latest versions of Foxit PDF Reader or Foxit PDF Editor. For Foxit PDF Reader, the updated version is 2026.1.2. For Foxit PDF Editor, the updated versions are 2026.1.2, 14.0.5, and 13.2.5. Instructions for updating or downloading the latest versions are available on the Foxit website.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jul 8, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://www.foxit.com/support/security-bulletins.html | Foxit | Vendor Advisory |
| https://www.talosintelligence.com/vulnerability_reports/TALOS-2026-2420 | CVE |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-416 | Use After Free | Foxit |
Affected Products
| Product | Versions |
|---|---|
| foxit pdf editor | <= 13.2.4.24048 >= 14.0.0.33046, <= 14.0.4.33508 >= 2023.1.0.15510, <= 2023.3.0.23028 >= 2024.1.0.23997, <= 2024.4.1.27687 >= 2025.1.0.27937, <= 2025.3.0.35737 >= 2026.1.0.36452, <= 2026.1.1.36485 |
CPE
Remediation
| |
| foxit pdf reader | <= 2026.1.1.36485 |
CPE
Remediation
| |
| apple macos | All versions |
CPE
Remediation
| |
| microsoft windows | All versions |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 9, 2026 | CVE Modified | CVE |
| Jul 9, 2026 | Initial Analysis | [email protected] |
| Jul 8, 2026 | CVE Modified | CISA-ADP |
| Jul 8, 2026 | New CVE Received | Foxit |