CVE-2026-3779 HIGH

CVE-2026-3779: Foxit PDF Editor/Reader List Box Calculate Array Use-After-Free Vulnerability

Vendor Foxit Software Inc.
Product Foxit PDF Editor
Weakness CWE-416
Published April 1, 2026
Last update April 2, 2026

CVSS base score

7.8/10
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

The application's list box calculate array logic keeps stale references to page or form objects after they are deleted or re-created, which allows crafted documents to trigger a use-after-free when the calculation runs and can potentially lead to arbitrary code execution.

Key dates

02Disclosure timeline

April 1, 2026 CVE published
April 2, 2026 Record updated