Local Privilege Escalation in Installer of Foxit Products
CVE-2026-3780

7.3HIGH

Key Information:

Vendor

Foxit Inc.

Status
Foxit
Foxit PDF Editor
Vendor
CVE Published:
1 April 2026

What is CVE-2026-3780?

The installer for Foxit software operates with elevated privileges, which creates a security risk due to its reliance on untrusted search paths for system executables and DLLs. This flaw allows local attackers to exploit user-writable directories, potentially placing malicious binaries with names identical to legitimate system files. When this occurs, the compromised binaries can be executed instead of the authentic files, leading to unauthorized privilege escalation on affected systems.

Affected Version(s)

Foxit PDF Editor Windows Versions 2025.3 and earlier

Foxit PDF Editor Windows Versions 14.0.2 and earlier

Foxit PDF Reader Windows Versions 2025.3 and earlier

References

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

CVSS V3.1

Score:
7.3
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.