CVE-2026-5943 Details
Description
Document structural anomalies caused inconsistencies between page element relationships and internal index states. When scripts triggered document modifications, object reference validity was not properly maintained, leading to a crash when accessing an invalid pointer during page information queries.
A use-after-free vulnerability has been identified in Foxit PDF Reader and Foxit PDF Editor. This vulnerability arises when the application improperly manages object references, particularly with certain XFA files, Annotation objects, or Signature objects. When documents containing JavaScript are processed, the application may access invalid pointers, causing a crash. However, this flaw could be exploited to execute arbitrary code or disclose information, as the invalid objects could be manipulated before the application crashes.
Users can update to the latest versions of Foxit PDF Reader or Foxit PDF Editor. Instructions for updating 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 Apr 27, 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 |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-416 | Use After Free | Foxit |
Affected Products
| Product | Versions |
|---|---|
| foxit pdf editor | < 13.2.4 >= 14.0.0, < 14.0.4 >= 2023.0.0, < 2026.1.1 |
CPE
Remediation
| |
| foxit pdf reader | < 2026.1.1 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | Foxit |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 29, 2026 | Initial Analysis | [email protected] |
| Apr 27, 2026 | New CVE Received | Foxit |