CVE-2024-9680
Mozilla Firefox Use-After-Free Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 5 November 2024). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 23.18% probability · 98th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Listed 15 October 2024 · due 5 November 2024 · used in ransomware campaigns
- Weakness
- CWE-416
- Affected
- mozilla/firefox · mozilla/thunderbird · debian/debian linux
- Source
- security@mozilla.org
EPSS 23.2% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
CISA notes
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. https://www.mozilla.org/en-US/security/advisories/mfsa2024-51/ ; https://nvd.nist.gov/vuln/detail/CVE-2024-9680
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1923344Issue Tracking, Permissions Required
- https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2024-49039Not Applicable, Patch, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2024-51/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2024-52/Vendor Advisory
- https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=281992Issue Tracking
- https://lists.debian.org/debian-lts-announce/2024/10/msg00005.htmlMailing List
- https://lists.debian.org/debian-lts-announce/2024/10/msg00006.htmlMailing List
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-9680US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.