CVE-2026-91795 PUBLISHED

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

Assigner: Foxit
Reserved: 15.09.2026 Published: 23.09.2026 Updated: 23.09.2026

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.

Metrics

CVSS 3.1

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

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

CVSS 3.1

Product Status

Vendor	Foxit Software Inc.
Product	Foxit PDF Editor
Versions	Default: unaffected Version Versions 2026.2 and earlier is affected Version Versions 14.0.7 and earlier is affected Version Versions 13.2.6 and earlier is affected

Vendor	Foxit Software Inc.
Product	Foxit PDF Reader
Versions	Default: unaffected Version Versions 2026.2 and earlier is affected

Credits

Pwn2Sleep working with TrendAI Zero Day Initiative finder

References

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

Problem Types

CWE-822 Untrusted pointer dereference CWE

Impacts

Potential arbitrary code execution