CVE-2026-3777

Use after free of view cache in Foxit PDF Editor/Reader

Published Apr 1, 2026 CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Description
The application does not properly validate the lifetime and validity of internal view cache pointers after JavaScript changes the document zoom and page state. When a script modifies the zoom property and then triggers a page change, the original view object may be destroyed while stale pointers are still kept and later dereferenced, which under crafted JavaScript and document structures can lead to a use-after-free condition and potentially allow arbitrary code execution.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Apple
Apple macos
Foxit
Foxit pdf Editor
Foxit pdf Reader
Microsoft
Microsoft windows
CPEs cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:*
cpe:2.3:a:foxit:pdf_reader:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*
Vendors & Products Apple
Apple macos
Foxit
Foxit pdf Editor
Foxit pdf Reader
Microsoft
Microsoft windows
Type Values Removed Values Added
First Time appeared Foxitsoftware
Foxitsoftware foxit Pdf Editor
Foxitsoftware foxit Reader
Vendors & Products Foxitsoftware
Foxitsoftware foxit Pdf Editor
Foxitsoftware foxit Reader
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description The application does not properly validate the lifetime and validity of internal view cache pointers after JavaScript changes the document zoom and page state. When a script modifies the zoom property and then triggers a page change, the original view object may be destroyed while stale pointers are still kept and later dereferenced, which under crafted JavaScript and document structures can lead to a use-after-free condition and potentially allow arbitrary code execution.
Title Use after free of view cache in Foxit PDF Editor/Reader
Weaknesses CWE-416
References
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Foxit
Published
Updated
Apr 2, 2026, 2:12 AM
Reserved
Mar 8, 2026, 3:43 AM
Status
Analyzed
Published
Apr 1, 2026, 2:16 AM
Modified
Jun 17, 2026, 10:44 AM