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CVE-2026-3779

Foxit PDF Editor/Reader List Box Calculate Array Use-After-Free Vulnerability

Published: Apr 1, 2026Updated: Apr 28, 2026 Sources: CVE List NVDCWE-416
NVD MITRE
7.8CVSSHIGH
EPSS Score
0.3%
Top 77.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

The application's list box calculate array logic keeps stale references to page or form objects after they are deleted or re-created, which allows crafted documents to trigger a use-after-free when the calculation runs and can potentially lead to arbitrary code execution.

CVSS Vector Breakdown

AV:LAC:LPR:NUI:RS:UC:HI:HA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-416

Affected Products

Foxit PDF EditorFoxit Software Inc.
On-premDesktop App
Consumer Software / file-utility
Foxit PDF ReaderFoxit Software Inc.
On-premDesktop App
Consumer Software / productivity
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

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Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://www.foxit.com/support/security-bulletins.html
foxit.com
https://www.talosintelligence.com/vulnerability_reports/TALOS-2026-2365
talosintelligence.com

Timeline

Published
Apr 1, 2026
Last Updated
Apr 28, 2026

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