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…

Vulnerability class: Use-After-Free

EPSS: 0.232 (97.5th percentile) — read the EPSS interpretation.

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.

Affected products

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

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.