CVE-2026-91792: Foxit PDF Editor/Reader Annotation Use-After-Free Remote Code Execution Vulnerability
Published Sep 23, 2026
·Updated
When processing a specially crafted PDF, Foxit PDF Editor/Reader may perform reentrant zoom and layout operations through page- and annotation-related JavaScript actions. This can cause the application to access page objects after they have been released, resulting in a use-after-free condition and an application crash.
Affected Software
1 affected component
Foxit PDF Editor/Reader
Event History
Sep 23, 2026
CVE Published
via MITRE·07:51 AM
Data Sourced
via MITRE·07:51 AM
DescriptionSeverityWeakness
Data Sourced
via NVD·08:17 AM
DescriptionSeverityWeakness
Frequently Asked Questions
1
What must an attacker do to trigger the issue?
The attacker must provide a specially crafted PDF and have it processed by Foxit PDF Editor or Reader. User interaction is required, consistent with a victim opening or otherwise processing the document.
2
Does exploitation require an authenticated account or elevated privileges?
No privileges are required according to the available CVSS vector. The attack vector is local, and the vulnerability is rated high severity with impacts to confidentiality, integrity, and availability.