---
id: CVE-2026-91802
title: >-
  A heap-based out-of-bounds write vulnerability exists in Foxit PDF
  Editor/Reader’s WebP image decoding due to improper handling of bitmap stride
  and target buffer formats
summary: >-
  A heap-based out-of-bounds write vulnerability exists in Foxit PDF
  Editor/Reader’s WebP image decoding due to improper handling of bitmap stride
  and target buffer formats. Successful exploitation could result in an
  application crash.
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'
cwe:
  - CWE-787
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_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-2026-91802'
references:
  - url: 'https://www.foxit.com/support/security-bulletins.html'
    label: 14984358-7092-470d-8f34-ade47a7658a2
tags:
  - nvd
  - cve.org
epss: 0.0017
epssPercentile: 0.06759
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-23T14:42:49.234407Z'
ingestedAt: '2026-09-23T08:20:37.590Z'
---

## Overview

A heap-based out-of-bounds write vulnerability exists in Foxit PDF Editor/Reader’s WebP image decoding due to improper handling of bitmap stride and target buffer formats. Successful exploitation could result in an application crash.

## Remediation

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