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CVE-2026-3778

MEDIUMCVSS 5.5/10EPSS 0.10%

Last modified

CVE-2026-3778 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. 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.. EPSS estimates a 0.10% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
5.5/10

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

EPSS Probability
0.10%

1.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
FoxitPdf Editor<= 13.2.2.24014
FoxitPdf Editor>= 14.0.0.33046, <= 14.0.2.33402
FoxitPdf Editor>= 2023.1.0.15510, <= 2023.3.0.23028
FoxitPdf Editor>= 2024.1.0.23997, <= 2024.4.1.27687
FoxitPdf Editor>= 2025.1.0.27937, <= 2025.3.0.35737
FoxitPdf Reader<= 2025.3.0.35737
FoxitPdf Editor<= 13.2.2.63349
FoxitPdf Editor>= 14.0.0.68868, <= 14.0.2.69164
FoxitPdf Editor>= 2023.1.0.55583, <= 2023.3.0.63083
FoxitPdf Editor>= 2024.1.0.63682, <= 2024.4.1.66479
FoxitPdf Editor>= 2025.1.0.66692, <= 2025.3.0.69570
FoxitPdf Reader<= 2025.3.0.69570

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2026-3778?
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.
How severe is CVE-2026-3778?
CVE-2026-3778 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.10% probability of exploitation in the next 30 days.
How do I fix CVE-2026-3778?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-3778?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST