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

MITRE NVD CVE.ORG Print: PDF PDF

Summary

CVECVE-2026-3777
StatePUBLISHED
AssignerFoxit
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-01 02:16:02 UTC
Updated2026-04-01 14:23:37 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from 14984358-7092-470d-8f34-ade47a7658a2

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

EPSS: 0.000150000 probability, percentile 0.030300000 (date 2026-04-02)

Problem Types: CWE-416 | CWE-416 CWE-416 Use after free

VersionSourceTypeScoreSeverityVector
3.114984358-7092-470d-8f34-ade47a7658a2Secondary5.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
3.1CNACVSS5.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Foxit Software Inc. Foxit PDF Editor affected Versions 2025.3 and earlier Windows, MacOS
CNA Foxit Software Inc. Foxit PDF Editor affected Versions 14.0.2 and earlier Windows, MacOS
CNA Foxit Software Inc. Foxit PDF Editor affected Versions 13.2.2 and earlier Windows, MacOS
CNA Foxit Software Inc. Foxit PDF Reader affected Versions 2025.3 and earlier Windows, MacOS

References

ReferenceSourceLinkTags
www.foxit.com/support/security-bulletins.html 14984358-7092-470d-8f34-ade47a7658a2 www.foxit.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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