CVE-2026-91813

HIGH CVSS 3.1: 8.8 EPSS 0.13%
Updated Sep 23, 2026
Foxit Software Inc.
Parameter Value
CVSS 8.8 (HIGH)
Type CWE-367 (Time-of-check Time-of-use (TOCTOU))
Vendor Foxit Software Inc.
Public PoC No

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.

Attack Parameters

Attack Vector
Local
Requires local access
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v3.1

Vulnerable Products

foxit software inc.:foxit pdf reader foxit software inc.:foxit pdf editor