CVE-2026-91795

Foxit PDF Editor/Reader FileOpen Uninitialized Variable Remote Code Execution Vulnerability

State: Published
Severity: 7.8 High
Published: Sep 23, 2026
Updated: Sep 23, 2026
Reserved: Sep 15, 2026

Description

Foxit PDF Editor/Reader's FileOpen plugin did not adequately validate certain encryption metadata in specially crafted PDF files. This could leave an internal pointer in an invalid state, resulting in chained read and write access violations and potentially enabling arbitrary code execution.

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-822 Untrusted pointer dereference

Affected Products

Product	Versions
Foxit PDF EditorFoxit Software Inc.	Versions 2026.2 and earlierAffected Versions 14.0.7 and earlierAffected Versions 13.2.6 and earlierAffected
Foxit PDF ReaderFoxit Software Inc.	Versions 2026.2 and earlierAffected

References

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

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