CVE-2026-91791 — Foxit PDF Editor/Reader Annotation Use-After-Free Remote Code Execution Vulnerability

CVE-2026-91791

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

Description (CNA)

When processing a specially crafted PDF file, Foxit PDF Editor/Reader may encounter a reentrant execution condition involving JavaScript triggered by page-visibility events. This can cause the application to access a released page-view object while calculating annotation boundaries, resulting in an invalid memory read and application crash.

Affected (CNA)

Vendor / product	Versions
Foxit Software Inc. / Foxit PDF Editor	affected Versions 2026.2 and earlier; affected Versions 14.0.7 and earlier; affected Versions 13.2.6 and earlier
Foxit Software Inc. / Foxit PDF Reader	affected Versions 2026.2 and earlier

CWE

CWE-416

References

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

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.