Foxit PDF Editor/Reader AcroForm Annotation Use-After-Free Remote Code Execution Vulnerability

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2026-5943
StatePUBLISHED
AssignerFoxit
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-27 12:16:24 UTC
Updated2026-04-29 17:18:04 UTC
DescriptionDocument structural anomalies caused inconsistencies between page element relationships and internal index states. When scripts triggered document modifications, object reference validity was not properly maintained, leading to a crash when accessing an invalid pointer during page information queries.

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from 14984358-7092-470d-8f34-ade47a7658a2

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

EPSS: 0.000130000 probability, percentile 0.021760000 (date 2026-04-27)

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

VersionSourceTypeScoreSeverityVector
3.114984358-7092-470d-8f34-ade47a7658a2Secondary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
3.1CNACVSS7.8HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

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

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Foxit Pdf Editor All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Foxit Software Inc. Foxit PDF Editor affected Versions 2026.1 and earlier Windows
CNA Foxit Software Inc. Foxit PDF Editor affected Versions 14.0.3 and earlier Windows
CNA Foxit Software Inc. Foxit PDF Editor affected Versions 13.2.3 and earlier Windows
CNA Foxit Software Inc. Foxit PDF Reader affected Versions 2026.1 and earlier Not specified

References

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

Vendor Comments And Credit

Discovery Credit

CNA: Anonymous working with TrendAI Zero Day Initiative (en)

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