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CVE-2026-3780

Foxit PDF Editor/Reader Installer Uncontrolled Search Path Privilege Escalation

Published: Apr 1, 2026Updated: Apr 28, 2026 Sources: CVE List NVDCWE-426
NVD MITRE
7.3CVSSHIGH
EPSS Score
0.1%
Top 97.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

The application's installer runs with elevated privileges but resolves system executables and DLLs using untrusted search paths that can include user-writable directories, allowing a local attacker to place malicious binaries with the same names and have them loaded or executed instead of the legitimate system files, resulting in local privilege escalation.

CVSS Vector Breakdown

AV:LAC:LPR:LUI:RS:UC:HI:HA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-426

Affected Products

Foxit PDF ReaderFoxit Software Inc.
On-premDesktop App
Consumer Software / productivity
Foxit PDF EditorFoxit Software Inc.
On-premDesktop App
Consumer Software / file-utility
pdf editorfoxit
On-premDesktop App
Consumer Software / file-utility
pdf readerfoxit
On-premDesktop App
Consumer Software / file-utility
foxit software inc.commercialUSConsumer Softwareaka foxit pdf reader, foxit pdf editor
foxitcommercialCNConsumer Softwareaka foxit pdf, foxit reader

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Persistence
View detailed technique mapping

References

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

Timeline

Published
Apr 1, 2026
Last Updated
Apr 28, 2026

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