CVE-2026-5943

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

State: Published
Severity: 7.8 High
Published: Apr 27, 2026
Updated: Apr 28, 2026
Reserved: Apr 9, 2026

Description

Document 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.

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H	Foxit

Weaknesses

CWE-416 Use after free

Affected Products

Product	Versions
Foxit PDF EditorFoxit Software Inc.	Versions 2026.1 and earlierAffected Versions 14.0.3 and earlierAffected Versions 13.2.3 and earlierAffected
Foxit PDF ReaderFoxit Software Inc.	Versions 2026.1 and earlierAffected

References

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

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