CVE-2026-3776

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. 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 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.

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://www.foxit.com/support/security-bulletins.html Vendor Advisory
Configurations

Configuration 1 (hide)

AND
OR cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:*
cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:*
cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:*
cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:*
cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:*
cpe:2.3:a:foxit:pdf_reader:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*

Configuration 2 (hide)

AND
OR cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:*
cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:*
cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:*
cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:*
cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:*
cpe:2.3:a:foxit:pdf_reader:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*
History

14 Apr 2026, 17:55

Type Values Removed Values Added
References () https://www.foxit.com/support/security-bulletins.html - () https://www.foxit.com/support/security-bulletins.html - Vendor Advisory
CPE cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*
cpe:2.3:a:foxit:pdf_reader:*:*:*:*:*:*:*:*
cpe:2.3:a:foxit:pdf_editor:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*
First Time Foxit
Microsoft windows
Microsoft
Foxit pdf Reader
Apple macos
Apple
Foxit pdf Editor
Summary
  • (es) La aplicación no valida la presencia de los datos de apariencia (AP) requeridos antes de acceder a los recursos de anotación de sello. Cuando un PDF contiene una anotación de sello a la que le falta su entrada AP, el código continúa desreferenciando el objeto asociado sin una comprobación previa de nulidad o validez, lo que permite que un documento manipulado active una desreferencia de puntero nulo y bloquee la aplicación, lo que resulta en denegación de servicio.

01 Apr 2026, 02:16

Type Values Removed Values Added
New CVE
Information

Published : 2026-04-01 02:16

Updated : 2026-04-14 17:55

NVD link : CVE-2026-3776

Mitre link : CVE-2026-3776

CVE.ORG link : CVE-2026-3776

JSON object : View

Products Affected

microsoft

  • windows

foxit

  • pdf_editor
  • pdf_reader

apple

  • macos
CWE
CWE-476

NULL Pointer Dereference