CVE-2026-57256
Received
Received - Intake
PDF JavaScript Execution Causes Illegal Pointer Read in Application
Vulnerability report for CVE-2026-57256, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-07-08
Last updated on: 2026-07-08
Assigner: Foxit
Description
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.
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| foxit | pdf_reader | to 2024.2.3.25184 (exc) |
| foxit | pdf_editor | to 2024.2.3.25184 (exc) |
| foxit | pdf_editor | to 2024.x (inc) |
| foxit | pdf_editor | to 2023.3.0.23028 (exc) |
| foxit | pdf_editor | to 13.1.3.22478 (exc) |
| foxit | pdf_editor | to 12.1.7.15526 (exc) |
| foxit | pdf_editor | to 11.2.10.53951 (exc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-416 | The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer. |
