CVE-2026-91811

A heap-based out-of-bounds write vulnerability exists in Foxit PDF Editor/Reader’s PRC parser due to insufficient validation of vertex indices in triangular fan texture meshes. Successful exploitation could result in memory corruption and an application crash.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

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_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_editor::::::::
	cpe:2.3:a:foxit:pdf_reader::::::::

cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*

History

15 Oct 2026, 14:10

Type	Values Removed	Values Added
First Time		Foxit Apple Foxit pdf Editor Foxit pdf Reader Microsoft Microsoft windows Apple macos
CPE		cpe:2.3:o:microsoft:windows:-:::::::* cpe:2.3:a:foxit:pdf_editor:::::::: cpe:2.3:o:apple:macos:-:::::::* cpe:2.3:a:foxit:pdf_reader::::::::
References	~~() https://www.foxit.com/support/security-bulletins.html -~~	() https://www.foxit.com/support/security-bulletins.html - Vendor Advisory

23 Sep 2026, 08:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-23 08:17

Updated : 2026-10-15 14:10

NVD link : CVE-2026-91811

Mitre link : CVE-2026-91811

CVE.ORG link : CVE-2026-91811

JSON object : View

Products Affected

microsoft

windows

foxit

pdf_editor
pdf_reader

apple

macos

CWE

CWE-787

Out-of-bounds Write

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