CVE-2026-5942: Foxit PDF Editor/Reader AcroForm Signature Use-After-Free Vulnerability

Q: What is the severity of CVE-2026-5942?

CVE-2026-5942 is classified as a high severity vulnerability due to its potential to crash Foxit PDF Editor and Reader.

Q: How do I fix CVE-2026-5942?

To fix CVE-2026-5942, users should update to the latest version of Foxit PDF Editor or Reader provided by Foxit.

Q: What are the risks associated with CVE-2026-5942?

The risks associated with CVE-2026-5942 include application crashes and potential data loss due to use-after-free vulnerabilities.

Q: Which versions of Foxit software are affected by CVE-2026-5942?

CVE-2026-5942 affects all versions of Foxit PDF Editor and Foxit PDF Reader prior to the security fix.

Q: How does CVE-2026-5942 impact the usability of Foxit PDF Editor and Reader?

CVE-2026-5942 impacts usability by causing program crashes during operations that involve document structure changes.

Published Apr 27, 2026

Updated

Flaws in page lifecycle management allow document structure changes to desynchronize internal component states, causing subsequent operations to access invalidated objects and crash the program.

Affected Software

6 affected components

Foxit Foxit PDF Editor

Foxit Foxit PDF 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

Frequently Asked Questions

What is the severity of CVE-2026-5942?

CVE-2026-5942 is classified as a high severity vulnerability due to its potential to crash Foxit PDF Editor and Reader.

How do I fix CVE-2026-5942?

To fix CVE-2026-5942, users should update to the latest version of Foxit PDF Editor or Reader provided by Foxit.

What are the risks associated with CVE-2026-5942?

The risks associated with CVE-2026-5942 include application crashes and potential data loss due to use-after-free vulnerabilities.

Which versions of Foxit software are affected by CVE-2026-5942?

CVE-2026-5942 affects all versions of Foxit PDF Editor and Foxit PDF Reader prior to the security fix.

How does CVE-2026-5942 impact the usability of Foxit PDF Editor and Reader?

CVE-2026-5942 impacts usability by causing program crashes during operations that involve document structure changes.

Company

Resources

Contact

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info@secalerts.co

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