CVE-2026-5939
Received
Received - Intake
Use-After-Free in XFA PDF Calculate Event Causes Code Execution
Publication date: 2026-04-27
Last updated on: 2026-04-29
Assigner: Foxit
Description
Description
A crafted XFA PDF can trigger a use-after-free condition during calculate event processing, causing the application to crash and resulting in an arbitrary code execution.
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| 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
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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability involves a crafted XFA PDF that can trigger a use-after-free condition during the calculate event processing within an application.
This condition causes the application to crash and can lead to arbitrary code execution.
How can this vulnerability impact me? :
The vulnerability can cause the affected application to crash unexpectedly.
More critically, it allows an attacker to execute arbitrary code, which could compromise the security and integrity of your system.
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