NULL pointer dereference in Foxit PDF Editor (formerly Foxit PhantomPDF) and Foxit PDF Reader for Windows - CVE-2026-3776

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Main Vulnerability Database Vulnerabilities #VU124715

NULL pointer dereference in Foxit PDF Editor (formerly Foxit PhantomPDF) and Foxit PDF Reader for Windows - CVE-2026-3776

Published: March 31, 2026


Vulnerability identifier: #VU124715
CSH Severity: Low
CVSS v4.0: 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-2026-3776
CWE-ID: CWE-476
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Foxit Software Inc.
Affected software:
Foxit PDF Editor (formerly Foxit PhantomPDF)
Foxit PDF Reader for Windows

Detailed vulnerability description

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to null pointer dereference in stamp annotation handling when opening PDFs missing the appearance (AP) entry. A remote attacker can trick the victim into opening a specially crafted PDF file to cause a denial of service.


How to mitigate CVE-2026-3776

Install security update from vendor's website.

Sources