CVE-2026-5939

Name: CVE-2026-5939
Creator: NVD / NIST
Published: 2026-04-27T12:16:24.263+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.11%

Last modified Jun 17, 2026

CVE-2026-5939 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. 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.. EPSS estimates a 0.11% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS Probability

0.11%

1.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-416

Affected Software

Vendor	Product	Versions
Foxit	Pdf Editor	>= 14.0.0, < 14.0.4
Foxit	Pdf Editor	>= 2023.0.0, < 2026.1.1
Foxit	Pdf Reader	< 2026.1.1

References

https://www.foxit.com/support/security-bulletins.htmlVendor Advisory

Timeline

Published: Apr 27, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-5939?

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.

How severe is CVE-2026-5939?

CVE-2026-5939 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.11% probability of exploitation in the next 30 days.

How do I fix CVE-2026-5939?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-5939?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST