# CVE-2024-9680: Mozilla Firefox Use-After-Free Vulnerability

> CVE-2024-9680: Mozilla Firefox Use-After-Free Vulnerability. CVSS 9.8 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2024-9680
Last updated: 2026-08-04T03:55:28Z

- Published: 2024-10-09 12:59 UTC · Updated: 2026-08-04 03:55 UTC · Assigner: mozilla
- CVSS: 9.8 (CVSS 3.1) · Severity: Critical · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS: 23.2%, 98th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2024-10-15, federal due date 2024-11-05, ransomware use: Known

## 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.

## CISA required action

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

## Affected vendors and products

- mozilla: firefox
- mozilla: firefox\_esr
- mozilla: thunderbird
- Mozilla: Firefox
- Mozilla: Firefox ESR
- Mozilla: Thunderbird

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2024-9680)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2024-9680)
- [https://bugzilla.mozilla.org/show\_bug.cgi?id=1923344](https://bugzilla.mozilla.org/show_bug.cgi?id=1923344)
- [https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2024-49039](https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2024-49039)
- [https://www.mozilla.org/security/advisories/mfsa2024-51/](https://www.mozilla.org/security/advisories/mfsa2024-51/)
- [https://www.mozilla.org/security/advisories/mfsa2024-52/](https://www.mozilla.org/security/advisories/mfsa2024-52/)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2024-9680 · Markdown: https://rewindex.com/cve/CVE-2024-9680.md · JSON: https://rewindex.com/api/v1/cves/CVE-2024-9680 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:13:40.704Z