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MEDIUM · 5.5

CVE-2026-3776

The application does not validate the presence of required appearance (AP) data before accessing stamp annotation resources. When a PDF contains a stamp annotation missing its AP entry, the code conti...

Vulnerability Description

The application does not validate the presence of required appearance (AP) data before accessing stamp annotation resources. When a PDF contains a stamp annotation missing its AP entry, the code continues to dereference the associated object without a prior null or validity check, which allows a crafted document to trigger a null pointer dereference and crash the application, resulting in denial of service.

CVSS Score

5.5

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH

Affected Products

VendorProductVersions
FoxitPdf Editor<= 13.2.2.24014
FoxitPdf Reader<= 2025.3.0.35737
MicrosoftWindows-
AppleMacos-

Related Weaknesses (CWE)

CWE-476

References

FAQ

What is CVE-2026-3776?

CVE-2026-3776 is a vulnerability with a CVSS score of 5.5 (MEDIUM). The application does not validate the presence of required appearance (AP) data before accessing stamp annotation resources. When a PDF contains a stamp annotation missing its AP entry, the code conti...

How severe is CVE-2026-3776?

CVE-2026-3776 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-3776?

Check the references section above for vendor advisories and patch information. Affected products include: Foxit Pdf Editor, Foxit Pdf Reader, Microsoft Windows, Apple Macos.