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CVE-2026-5939

UAF in Foxit PDF Editor/Reader via XFA calculate event

Published: Apr 27, 2026Updated: Apr 29, 2026 Sources: CVE List NVDCWE-416
NVD MITRE
5.5CVSSMEDIUM
EPSS Score
0.1%
Top 98.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

A crafted XFA PDF can trigger a use-after-free condition during calculate event processing, causing the application to crash and resulting in an arbitrary code execution.

CVSS Vector Breakdown

AV:LAC:LPR:NUI:RS:UC:NI:NA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
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

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

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

Timeline

Published
Apr 27, 2026
Last Updated
Apr 29, 2026

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