CVE-2026-5943
Use-After-Free Vulnerability in Document Object Handling Causes Crash
Publication date: 2026-04-27
Last updated on: 2026-04-29
Assigner: Foxit
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| foxit | pdf_editor | to 13.2.4 (exc) |
| foxit | pdf_editor | From 14.0.0 (inc) to 14.0.4 (exc) |
| foxit | pdf_editor | From 2023.0.0 (inc) to 2026.1.1 (exc) |
| foxit | pdf_reader | to 2026.1.1 (exc) |
Helpful Resources
Exploitability
| 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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability involves inconsistencies in the document structure caused by anomalies between page element relationships and internal index states. When scripts modify the document, the validity of object references is not properly maintained. This leads to a crash when the system tries to access an invalid pointer during queries for page information.
How can this vulnerability impact me? :
The vulnerability can cause crashes due to invalid pointer access when scripts modify documents. This can lead to denial of service or application instability, potentially interrupting normal operations and causing loss of availability.