#VU124718 Uncontrolled Recursion in Foxit PDF Editor (formerly Foxit PhantomPDF) and Foxit PDF Reader for Windows - CVE-2026-3778
Published: March 31, 2026
Vulnerability identifier: #VU124718
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-3778
CWE-ID: CWE-674
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Foxit PDF Editor (formerly Foxit PhantomPDF)
Foxit PDF Reader for Windows
Foxit PDF Editor (formerly Foxit PhantomPDF)
Foxit PDF Reader for Windows
Software vendor:
Foxit Software Inc.
Foxit Software Inc.
Description
The vulnerability allows a remote attacker to crash the application.
The vulnerability exists due to uncontrolled recursion in object reference handling when processing PDFs with cyclic references. A remote attacker can trick the victim into opening a specially crafted PDF file to cause a stack overflow and crash the application.
Remediation
Install security update from vendor's website.