---
id: CVE-2026-91798
title: >-
  A local privilege escalation vulnerability exists in the update daemon of
  Foxit PDF Editor/Reader due to an insecure permission configuration that
  allows the configuration file to be modified by regular users, which may lead
  to arbitrary…
summary: >-
  A local privilege escalation vulnerability exists in the update daemon of
  Foxit PDF Editor/Reader due to an insecure permission configuration that
  allows the configuration file to be modified by regular users, which may lead
  to arbitrary…
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H'
cwe:
  - CWE-732
vendor: Foxit Software Inc.
product: Foxit PDF Editor
affected:
  - foxit_pdf_editor Versions 2026.2 and earlier
  - foxit_pdf_editor Versions 14.0.7 and earlier
  - foxit_pdf_editor Versions 13.2.6 and earlier
  - foxit_pdf_reader Versions 2026.2 and earlier
published: '2026-09-23'
updated: '2026-09-23'
sourceUpdated: '2026-09-23T17:58:26.570'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-91798'
references:
  - url: 'https://www.foxit.com/support/security-bulletins.html'
    label: 14984358-7092-470d-8f34-ade47a7658a2
tags:
  - nvd
  - cve.org
epss: 0.00102
epssPercentile: 0.00862
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-23T14:40:51.697713Z'
ingestedAt: '2026-09-23T08:20:37.588Z'
---

## Overview

A local privilege escalation vulnerability exists in the update daemon of Foxit PDF Editor/Reader due to an insecure permission configuration that allows the configuration file to be modified by regular users, which may lead to arbitrary script execution with higher privileges.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.