CVE-2026-5938: Foxit PDF Editor/Reader Infinite Loop Denial-of-Service Vulnerability

Q: What is the severity of CVE-2026-5938?

CVE-2026-5938 is classified as a denial-of-service vulnerability, which can lead to application crashes or freezing.

Q: How does CVE-2026-5938 affect Foxit PDF Editor and Reader?

CVE-2026-5938 affects Foxit PDF Editor and Foxit Reader by exploiting improper control flow management, causing UI freeze.

Q: How do I fix CVE-2026-5938?

To fix CVE-2026-5938, ensure you update to the latest version of Foxit PDF Editor or Foxit Reader that includes security patches.

Q: What are the symptoms of CVE-2026-5938 exploitation?

The exploitation of CVE-2026-5938 typically results in the application's user interface freezing or becoming unresponsive.

Q: Is there a workaround for CVE-2026-5938?

Currently, there are no documented workarounds for CVE-2026-5938; the best approach is to update the software.

Published Apr 27, 2026

Updated

Improper control flow management allows a crafted document action chain to cause modal dialog reentry on the main thread, resulting in UI freeze and denial of service.

Affected Software

6 affected components

Foxit Foxit PDF Editor

Foxit Foxit Reader

Foxit PDF Editor<13.2.4

Foxit PDF Editor>=14.0.0<14.0.4

Foxit PDF Editor>=2023.0.0<2026.1.1

Foxit PDF Reader<2026.1.1

Event History

Apr 27, 2026

CVE Published

via MITRE·11:00 AM

Data Sourced

via MITRE·11:00 AM

DescriptionSeverityWeakness

Data Sourced

via NVD·12:16 PM

DescriptionSeverityWeaknessAffected Software

Oct 6, 58306

Event

via FIRST·01:36 PM

Frequently Asked Questions

What is the severity of CVE-2026-5938?

CVE-2026-5938 is classified as a denial-of-service vulnerability, which can lead to application crashes or freezing.

How does CVE-2026-5938 affect Foxit PDF Editor and Reader?

CVE-2026-5938 affects Foxit PDF Editor and Foxit Reader by exploiting improper control flow management, causing UI freeze.

How do I fix CVE-2026-5938?

To fix CVE-2026-5938, ensure you update to the latest version of Foxit PDF Editor or Foxit Reader that includes security patches.

What are the symptoms of CVE-2026-5938 exploitation?

The exploitation of CVE-2026-5938 typically results in the application's user interface freezing or becoming unresponsive.

Is there a workaround for CVE-2026-5938?

Currently, there are no documented workarounds for CVE-2026-5938; the best approach is to update the software.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co

By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.