CVE-2026-5939
Medium
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.
SeverityMedium
CVSS5.5
Exploit probability—
ProductFoxit Pdf Editor
PublishedApr 27, 2026
First seenApr 27, 2026
Weakness typeCWE-416Use after free
How to fix
Update
- foxit pdf_editor14.0.4, 2026.1.1 or later
- foxit pdf_reader2026.1.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| foxit pdf_editor | 14.0.0 ≤ v < 14.0.4, 2023.0.0 ≤ v < 2026.1.1 | 14.0.4, 2026.1.1 |
| foxit pdf_reader | v < 2026.1.1 | 2026.1.1 |
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