CVE-2026-91813

A vulnerability in Foxit PDF Editor/Reader’s update mechanism allows an update package to be replaced between download and high-privilege extraction due to insufficient file locking and integrity validation. This could enable local attackers to execute arbitrary code with elevated privileges.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.0 / Impact : 6.0

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

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:-:*:*:*:*:*:*:*

History

08 Oct 2026, 14:01

Type	Values Removed	Values Added
First Time		Foxit Microsoft windows Foxit pdf Editor Microsoft Foxit pdf Reader
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_editor:::::::: cpe:2.3:a:foxit:pdf_reader::::::::

23 Sep 2026, 08:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-23 08:17

Updated : 2026-10-08 14:01

NVD link : CVE-2026-91813

Mitre link : CVE-2026-91813

CVE.ORG link : CVE-2026-91813

JSON object : View

Products Affected

microsoft

windows

foxit

pdf_editor
pdf_reader

CWE

CWE-367

Time-of-check Time-of-use (TOCTOU) Race Condition

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