Insecure DLL loading in Foxit PDF Editor (formerly Foxit PhantomPDF) and Foxit PDF Reader for Windows - CVE-2026-3780

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Main Vulnerability Database Vulnerabilities #VU124714

Insecure DLL loading in Foxit PDF Editor (formerly Foxit PhantomPDF) and Foxit PDF Reader for Windows - CVE-2026-3780

Published: March 31, 2026


Vulnerability identifier: #VU124714
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2026-3780
CWE-ID: CWE-427
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 compromise vulnerable system.

The vulnerability exists due to the application loads DLL libraries in an insecure manner. A remote attacker can place a specially crafted .dll file on a remote SMB fileshare, trick the victim into opening a file, associated with the vulnerable application, and execute arbitrary code on victim's system.


How to mitigate CVE-2026-3780

Install security update from vendor's website.

Sources