---
id: CVE-2024-9680
title: >-
  An attacker was able to achieve code execution in the content process by
  exploiting a use-after-free in Animation timelines
summary: >-
  An attacker was able to achieve code execution in the content process by
  exploiting a use-after-free in Animation timelines. We have had reports of
  this vulnerability being exploited in the wild. This vulnerability affects
  Firefox < 131.…
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-416
  - CWE-416
vendor: mozilla
product: firefox
affected:
  - firefox < 115.16.1
  - firefox < 131.0.2
  - 'firefox >= 128.1.0, < 128.3.1'
  - thunderbird < 115.16.0
  - 'thunderbird >= 128.0.1, < 128.3.1'
  - thunderbird = 131.0
  - debian_linux = 11.0
patched:
  - firefox 128.3.1
  - thunderbird 128.3.1
published: '2024-10-09'
updated: '2026-08-04'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2024-9680'
references:
  - url: 'https://bugzilla.mozilla.org/show_bug.cgi?id=1923344'
    label: security@mozilla.org
  - url: 'https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2024-49039'
    label: security@mozilla.org
  - url: 'https://www.mozilla.org/security/advisories/mfsa2024-51/'
    label: security@mozilla.org
  - url: 'https://www.mozilla.org/security/advisories/mfsa2024-52/'
    label: security@mozilla.org
  - url: 'https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=281992'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://lists.debian.org/debian-lts-announce/2024/10/msg00005.html'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://lists.debian.org/debian-lts-announce/2024/10/msg00006.html'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-9680
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - kev
  - in-the-wild
  - exploit-available
epss: 0.23184
epssPercentile: 0.9767
kev: true
kevDateAdded: '2024-10-15'
kevDueDate: '2024-11-05'
kevRansomware: true
exploited: true
zeroDay: true
ingestedAt: '2026-08-04T05:36:12.514Z'
exploits:
  github: 3
  githubRepos:
    - 'https://github.com/tdonaworth/Firefox-CVE-2024-9680'
    - 'https://github.com/PraiseImafidon/Version_Vulnerability_Scanner'
    - 'https://github.com/moscovium-mc/Tor-0day-JavaScript-Exploit'
  checkedAt: '2026-09-24T07:52:52.086Z'
exploitAvailable: true
---

## Overview

An attacker was able to achieve code execution in the content process by exploiting a use-after-free in Animation timelines. We have had reports of this vulnerability being exploited in the wild. This vulnerability affects Firefox < 131.0.2, Firefox ESR < 128.3.1, Firefox ESR < 115.16.1, Thunderbird < 131.0.1, Thunderbird < 128.3.1, and Thunderbird < 115.16.0.

## Affected

- `firefox < 115.16.1`
- `firefox < 131.0.2`
- `firefox >= 128.1.0, < 128.3.1`
- `thunderbird < 115.16.0`
- `thunderbird >= 128.0.1, < 128.3.1`
- `thunderbird = 131.0`
- `debian_linux = 11.0`

## Remediation

Upgrade past the affected range:

- `firefox 128.3.1`
- `thunderbird 128.3.1`