Vulnerability in Foxit PDF Editor/Reader's FileOpen Plugin Exposes Security Risks
CVE-2026-91795

7.8HIGH

Key Information:

Vendor

Foxit Inc.

Status
Foxit PDF Editor
Foxit
Vendor
CVE Published:
23 September 2026

What is CVE-2026-91795?

The FileOpen plugin in Foxit PDF Editor and Reader suffers from a security vulnerability due to inadequate validation of encryption metadata in specially crafted PDF files. This flaw may lead to the internal pointer being left in an invalid state, which can subsequently allow for chained read and write access violations. As a result, this can potentially enable an attacker to execute arbitrary code within the context of the application, posing significant risks to users.

Affected Version(s)

Foxit PDF Editor Windows Versions 2026.2 and earlier

Foxit PDF Editor Windows Versions 14.0.7 and earlier

Foxit PDF Editor Windows Versions 13.2.6 and earlier

References

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

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Pwn2Sleep working with TrendAI Zero Day Initiative
.