---
id: CVE-2026-113401
title: Denial-of-service in the PDF Viewer component
summary: >-
  Denial-of-service in the PDF Viewer component. This vulnerability was fixed in
  Firefox 158.0.1.
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'
cvssSource: adp
vendor: Mozilla
product: Firefox
affected:
  - Firefox
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-20T14:25:14.357154Z'
published: '2026-10-20'
updated: '2026-10-20'
sourceUpdated: '2026-10-20T14:25:17.360Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-113401'
references:
  - url: 'https://bugzilla.mozilla.org/show_bug.cgi?id=2073714'
  - url: 'https://www.mozilla.org/security/advisories/mfsa2026-111/'
tags:
  - cve.org
ingestedAt: '2026-10-20T14:08:00.581Z'
---

## Overview

Denial-of-service in the PDF Viewer component. This vulnerability was fixed in Firefox 158.0.1.

## Affected

- `Firefox`

## Remediation

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