CVE-2026-57242: CWE-416 Use after free in Foxit Software Inc. Foxit PDF Editor
The application opens the PDF, and JavaScript modifies the form. However, the related objects on the page lack complete lifecycle management and null value validation; when the page state changes, the application continuously dereferences invalid objects, eventually leading to a crash.
AI Analysis
Technical Summary
This vulnerability in Foxit PDF Editor involves improper lifecycle management and null value validation of objects related to PDF forms manipulated by JavaScript. When the page state changes, the application continues to dereference freed or invalid objects, resulting in a use-after-free condition that causes a crash. The CVSS 3.1 vector indicates local attack vector, low attack complexity, no privileges required, user interaction required, unchanged scope, and high impact on confidentiality, integrity, and availability. No official remediation or patch information is currently available.
Potential Impact
Successful exploitation can cause the application to crash, leading to denial of service. The CVSS score indicates high impact on confidentiality, integrity, and availability, but no known exploits are reported in the wild. The vulnerability requires local access and user interaction to trigger.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, users should avoid opening untrusted PDF files with JavaScript forms in Foxit PDF Editor and limit local access to trusted users.
CVE-2026-57242: CWE-416 Use after free in Foxit Software Inc. Foxit PDF Editor
Description
The application opens the PDF, and JavaScript modifies the form. However, the related objects on the page lack complete lifecycle management and null value validation; when the page state changes, the application continuously dereferences invalid objects, eventually leading to a crash.
CVSS v3.1
Score 7.8high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Foxit PDF Editor involves improper lifecycle management and null value validation of objects related to PDF forms manipulated by JavaScript. When the page state changes, the application continues to dereference freed or invalid objects, resulting in a use-after-free condition that causes a crash. The CVSS 3.1 vector indicates local attack vector, low attack complexity, no privileges required, user interaction required, unchanged scope, and high impact on confidentiality, integrity, and availability. No official remediation or patch information is currently available.
Potential Impact
Successful exploitation can cause the application to crash, leading to denial of service. The CVSS score indicates high impact on confidentiality, integrity, and availability, but no known exploits are reported in the wild. The vulnerability requires local access and user interaction to trigger.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, users should avoid opening untrusted PDF files with JavaScript forms in Foxit PDF Editor and limit local access to trusted users.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Foxit
- Date Reserved
- 2026-06-24T03:01:15.648Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a4e27ebc9d9e3dbe3eaeb98
Added to database: 07/08/2026, 10:35:23 UTC
Last enriched: 07/15/2026, 12:17:54 UTC
Last updated: 08/22/2026, 10:52:10 UTC
Views: 58
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