CVE Tools
Sign in

CVE-2026-3778

Stack exhaustion caused by cyclic references in Foxit PDF Editor/Reader

Published: Apr 1, 2026Updated: Apr 14, 2026 Sources: CVE List NVDCWE-674
NVD MITRE
6.2CVSSMEDIUM
EPSS Score
0.1%
Top 98.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

The application does not detect or guard against cyclic PDF object references while handling JavaScript in PDF. When pages and annotations are crafted that reference each other in a loop, passing the document to APIs (e.g., SOAP) that perform deep traversal can cause uncontrolled recursion, stack exhaustion, and application crashes.

CVSS Vector Breakdown

AV:LAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-674

Affected Products

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

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
Impact
View detailed technique mapping

References

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

Timeline

Published
Apr 1, 2026
Last Updated
Apr 14, 2026

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2026-3778 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows