---
id: CVE-2026-92032
title: Sandbox escape due to invalid pointer in the Graphics component
summary: >-
  Sandbox escape due to invalid pointer in the Graphics component. This
  vulnerability was fixed in Firefox 156, Firefox ESR 140.16, Firefox ESR 153.3,
  Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.
severity: critical
cvss: 9.6
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H'
cwe:
  - CWE-119
  - CWE-476
vendor: mozilla
product: firefox
affected:
  - firefox < 140.16.0
  - 'firefox >= 141.0, < 153.3.0'
  - 'firefox >= 154.0.0, < 156.0.0'
  - thunderbird < 140.16.0
  - 'thunderbird >= 141.0, < 153.3.0'
  - 'thunderbird >= 154.0, < 156.0'
patched:
  - firefox 156.0.0
  - thunderbird 156.0
published: '2026-09-15'
updated: '2026-10-05'
sourceUpdated: '2026-10-05T18:01:31.197'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-92032'
references:
  - url: 'https://bugzilla.mozilla.org/show_bug.cgi?id=2068437'
    label: security@mozilla.org
  - url: 'https://www.mozilla.org/security/advisories/mfsa2026-90/'
    label: security@mozilla.org
  - url: 'https://www.mozilla.org/security/advisories/mfsa2026-92/'
    label: security@mozilla.org
  - url: 'https://www.mozilla.org/security/advisories/mfsa2026-93/'
    label: security@mozilla.org
  - url: 'https://www.mozilla.org/security/advisories/mfsa2026-94/'
    label: security@mozilla.org
  - url: 'https://www.mozilla.org/security/advisories/mfsa2026-95/'
    label: security@mozilla.org
  - url: 'https://www.mozilla.org/security/advisories/mfsa2026-96/'
    label: security@mozilla.org
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-92032.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-92032'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2533743'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-92032'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-92032'
  - url: 'https://www.mozilla.org/security/advisories/mfsa2026-92/#CVE-2026-92032'
  - url: 'https://www.mozilla.org/security/advisories/mfsa2026-95/#CVE-2026-92032'
  - url: 'https://access.redhat.com/errata/RHSA-2026:69461'
  - url: 'https://access.redhat.com/errata/RHSA-2026:69462'
  - url: 'https://access.redhat.com/errata/RHSA-2026:70642'
  - url: 'https://access.redhat.com/errata/RHSA-2026:71652'
  - url: 'https://access.redhat.com/errata/RHSA-2026:73130'
  - url: 'https://access.redhat.com/errata/RHSA-2026:73971'
  - url: 'https://access.redhat.com/errata/RHSA-2026:82818'
  - url: 'https://access.redhat.com/errata/RHSA-2026:81392'
  - url: 'https://access.redhat.com/errata/RHSA-2026:82122'
  - url: 'https://access.redhat.com/errata/RHSA-2026:81913'
  - url: 'https://access.redhat.com/errata/RHSA-2026:82720'
  - url: 'https://access.redhat.com/errata/RHSA-2026:81912'
  - url: 'https://access.redhat.com/errata/RHSA-2026:82780'
  - url: 'https://access.redhat.com/errata/RHSA-2026:81394'
  - url: 'https://access.redhat.com/errata/RHSA-2026:81393'
  - url: 'https://access.redhat.com/errata/RHSA-2026:82817'
  - url: 'https://access.redhat.com/errata/RHSA-2026:81884'
  - url: 'https://access.redhat.com/errata/RHSA-2026:83496'
  - url: 'https://access.redhat.com/errata/RHSA-2026:82779'
  - url: 'https://access.redhat.com/errata/RHSA-2026:83076'
  - url: 'https://access.redhat.com/errata/RHSA-2026:83077'
tags:
  - nvd
  - cve.org
  - csaf
  - vex
  - red-hat
  - score-dispute
epss: 0.00321
epssPercentile: 0.24942
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-21T16:58:55.361425Z'
scores:
  nvd: 9.6
  vendor: 6.1
ingestedAt: '2026-09-15T12:36:50.189Z'
---

## Overview

Sandbox escape due to invalid pointer in the Graphics component. This vulnerability was fixed in Firefox 156, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.

## Affected

- `firefox < 140.16.0`
- `firefox >= 141.0, < 153.3.0`
- `firefox >= 154.0.0, < 156.0.0`
- `thunderbird < 140.16.0`
- `thunderbird >= 141.0, < 153.3.0`
- `thunderbird >= 154.0, < 156.0`

## Remediation

Upgrade past the affected range:

- `firefox 156.0.0`
- `thunderbird 156.0`

## Vendor advisories

- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7 · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 10 · updated 2026-10-15 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-92032.json)
- **RHSA-2026:69461** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 10) · released 2026-09-21 · [advisory](https://access.redhat.com/errata/RHSA-2026:69461)
- **RHSA-2026:69462** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 9) · released 2026-09-21 · [advisory](https://access.redhat.com/errata/RHSA-2026:69462)
- **RHSA-2026:70642** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 9) · released 2026-09-24 · [advisory](https://access.redhat.com/errata/RHSA-2026:70642)
- **RHSA-2026:71652** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 8) · released 2026-09-24 · [advisory](https://access.redhat.com/errata/RHSA-2026:71652)
- **RHSA-2026:73130** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 10) · released 2026-09-29 · [advisory](https://access.redhat.com/errata/RHSA-2026:73130)
- **RHSA-2026:73971** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 8) · released 2026-09-30 · [advisory](https://access.redhat.com/errata/RHSA-2026:73971)
- **RHSA-2026:82818** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream EUS (v. 10.0) · released 2026-10-14 · [advisory](https://access.redhat.com/errata/RHSA-2026:82818)
- **RHSA-2026:81392** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream EUS (v. 10.0) · released 2026-10-12 · [advisory](https://access.redhat.com/errata/RHSA-2026:81392)
- **RHSA-2026:82122** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream AUS (v.8.4), Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4) · released 2026-10-13 · [advisory](https://access.redhat.com/errata/RHSA-2026:82122)
- **RHSA-2026:81913** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream AUS (v.8.6), Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6) · released 2026-10-13 · [advisory](https://access.redhat.com/errata/RHSA-2026:81913)
- **RHSA-2026:82720** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream E4S (v.8.8), Red Hat Enterprise Linux AppStream TUS (v.8.8) · released 2026-10-14 · [advisory](https://access.redhat.com/errata/RHSA-2026:82720)
- **RHSA-2026:81912** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream E4S (v.8.8), Red Hat Enterprise Linux AppStream TUS (v.8.8) · released 2026-10-13 · [advisory](https://access.redhat.com/errata/RHSA-2026:81912)
- **RHSA-2026:82780** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream E4S (v.9.2) · released 2026-10-14 · [advisory](https://access.redhat.com/errata/RHSA-2026:82780)
- **RHSA-2026:83496** · Red Hat · fixed in: Red Hat Enterprise Linux Server (v. 7 ELS) · released 2026-10-15 · [advisory](https://access.redhat.com/errata/RHSA-2026:83496)
- **RHSA-2026:82779** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream AUS (v.8.4), Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4) · released 2026-10-14 · [advisory](https://access.redhat.com/errata/RHSA-2026:82779)
- **RHSA-2026:83076** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream AUS (v.8.6), Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6) · released 2026-10-14 · [advisory](https://access.redhat.com/errata/RHSA-2026:83076)
