CVE-2026-91803 HIGH

CVE-2026-91803: Security Vulnerability Report – Foxit PDF Editor/Reader Updater DLL Search Path Hijacking

Vendor Foxit Software Inc.
Product Foxit PDF Editor
Weakness CWE-427
Published September 23, 2026
Last update September 23, 2026
View on NVD All CVEs

CVSS base score

8.8/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

What the vulnerability does

01Description

A local privilege escalation vulnerability exists in the updater of Foxit PDF Editor/Reader due to unsafe loading of dynamic-link libraries from a user-writable directory during high-privilege operations. A local attacker could exploit this issue to execute code with elevated privileges.

Key dates

02Disclosure timeline

September 23, 2026 CVE published