Vulnerability Report

CVE-2026-57256

Title: PDF JavaScript causes invalid pointer read and crash

Memory Corruption

Proof Of Concept

No public PoC currently indexed for CVE-2026-57256.

CWE Category CWE-416

Published Date Jul 08, 2026

Modified Date Jul 09, 2026

Exploit Status Not Found

Score 7.8 CVSS v3.1

Exploit Probability (EPSS)

0.12%

Vulnerability Summary

CVE-2026-57256: 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.

Impacted Vendors

foxitsoftware 2

foxit 2

Reference Links

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

CVSS v3.1

Source Entity 14984358-7092-470d-8f34-ade47a7658a2

Severity HIGH

7.8

Attack Vector

LOCAL

Complexity

LOW

Privileges

N/A

Interaction

REQUIRED

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

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

Associated Attack Patterns (CAPEC)

Total: Patterns