Use After Free in Mozilla Firefox
CVE-2024-9680
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.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.232 (97.8th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 97.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.232 · newest: 0.232 · change: 0.000
Affected products
- Mozilla Firefox — versions unspecified
- Mozilla Firefox Esr — versions unspecified
- Mozilla Thunderbird — versions unspecified, 131.0
- Debian Linux — versions 11.0
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Known ransomware campaign use: yes.
Public proof-of-concept exploits
References
- bugzilla.mozilla.org/show_bug.cgi (Permissions Required, Issue Tracking)
- msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2024-49039 (Patch, Not Applicable, Vendor Advisory)
- www.mozilla.org/security/advisories/mfsa2024-51/ (Vendor Advisory)
- www.mozilla.org/security/advisories/mfsa2024-52/ (Vendor Advisory)
- af854a3a-2127-422b-91ae-364da2661108 (Issue Tracking)
- af854a3a-2127-422b-91ae-364da2661108 (Mailing List)
- af854a3a-2127-422b-91ae-364da2661108 (Mailing List)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)
Frequently asked questions
- What is CVE-2024-9680?
- CVE-2024-9680 is a critical-severity vulnerability in Mozilla Firefox, classified under Use After Free. CVSS score: 9.8/10. Published 2024-10-09.
- How severe is CVE-2024-9680?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2024-9680 known to be exploited?
- Yes. CVE-2024-9680 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2024-10-15), indicating it is being actively exploited. 11 public proof-of-concept repositories are indexed.