Use-After-Free Vulnerability in Foxit PDF Reader
CVE-2026-3779

7.8HIGH

Key Information:

Vendor

Foxit Inc.

Status
Foxit PDF Editor
Foxit
Vendor
CVE Published:
1 April 2026

What is CVE-2026-3779?

The Foxit PDF Reader contains a use-after-free vulnerability due to the application's list box array logic retaining outdated references to page or form objects even after they are deleted or re-created. This flawed memory management can lead to a scenario where crafted documents trigger a use-after-free condition during calculations, potentially allowing attackers to execute arbitrary code on affected systems.

Affected Version(s)

Foxit PDF Editor Windows Versions 2025.3 and earlier

Foxit PDF Editor Windows Versions 14.0.2 and earlier

Foxit PDF Editor Windows Versions 13.2.2 and earlier

References

https://www.foxit.com/support/security-bulletins.html

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.