CVE-2026-3778

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

CVSS 6.2 MEDIUMEPSS 0.1%CWE-674

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 6.2EPSS 0.1%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

01 Apr 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

Foxit Software Inc. · Foxit PDF Editor Foxit Software Inc. · Foxit PDF Reader

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References

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