CVE-2024-9680

Mozilla Firefox Use-After-Free Vulnerability

  • Critical 9.8
  • Exploited: added to CISA KEV 15 Oct 2024
  • Used in ransomware campaigns

Description

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.

Key facts

Published
9 Oct 2024
Last changed
4 Aug 2026
Assigned by
mozilla
KEV added
15 Oct 2024
KEV fix due
5 Nov 2024
Used in ransomware
Yes, according to CISA
EPSS
23.184% likely to be exploited in the next 30 days, higher than 97.8% of CVEs (scores for 15 Nov 2026)
SSVC (CISA)
Exploitation: active; Automatable: yes; Technical impact: total

Severity scores

Each score is shown as its source gave it. They are not averaged or merged.

  • 9.8CVSS 3.1, Criticalfrom CISA (ADP container)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

What to do

  • Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.CISA KEV required action

Historical context and remediation

This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.

No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.

Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.

Read the original CVE record.

Affected products

VendorProductVersions
MozillaFirefox
  • unspecified up to but excluding 131.0.2 (affected)
MozillaFirefox ESR
  • unspecified up to but excluding 128.3.1 (affected)
MozillaFirefox ESR
  • unspecified up to but excluding 115.16.1 (affected)
MozillaThunderbird
  • unspecified up to but excluding 131.0.1 (affected)
MozillaThunderbird
  • unspecified up to but excluding 128.3.1 (affected)
MozillaThunderbird
  • unspecified up to but excluding 115.16.0 (affected)

Timeline

  1. 9 Oct 2024 Published
  2. 15 Oct 2024 CVE-2024-9680 added to CISA KEV
  3. 15 Oct 2024 Added to the CISA KEV catalogue

Weakness

References