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VulnerabilityCVE-2024-9680Published 2024-10-09

CVE-2024-9680 — Mozilla Firefox

criticalCISA KEVRansomware

As of 2025-11-04, CVE-2024-9680 is a CRITICAL-severity vulnerability in Mozilla Firefox, CVSS v3.1 9.8, EPSS 30.8% (96.7th percentile). It is listed in the CISA Known Exploited Vulnerabilities catalog (added 2024-10-15), with a US federal remediation deadline of 2024-11-05, and CISA links it to known ransomware campaigns. No Threadlinqs-tracked threat campaign has been attributed to CVE-2024-9680 as of 2025-11-04; the identifier is re-checked against the Threadlinqs threat corpus on every daily ingest.

CVSS v3.1
9.8/10Critical
EPSS
30.8%Higher than 96.7% of scored CVEs
CISA KEV
ListedAdded · due 2024-11-05
Tracked threats
0None linked yet
Priority
10/10Threadlinqs triage score
Published
Updated 2025-11-04
CVSS v3.1 9.8 (CRITICAL) · EPSS 30.8% (higher than 96.7% of all scored CVEs) · Priority 10/10 · Published 2024-10-09

Last updated:

What is 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.

The record classifies CVE-2024-9680 under weakness class CWE-416. Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs no user interaction, and has high impact on confidentiality, integrity, availability. 5 affected-product entries are recorded, across 2 vendors, listed below. The identifier was first published 726 days ago.

Severity and exploitation probability

CVSS v3.1 base score
9.8 — CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (FIRST)
30.8% probability of exploitation in the next 30 days, higher than 96.7% of all scored CVEs
CISA KEV
Listed since 2024-10-15, federal remediation deadline 2024-11-05 — used in known ransomware campaigns
Threadlinqs priority
10/10 — CISA lists it as used in ransomware, which Threadlinqs scores at the maximum
Published
2024-10-09, last modified 2025-11-04

Is CVE-2024-9680 being exploited?

CISA added CVE-2024-9680 to the Known Exploited Vulnerabilities catalog on 2024-10-15, which means the agency holds evidence of exploitation in the wild; US federal civilian agencies had to remediate it by 2024-11-05 under BOD 22-01. CISA flags the vulnerability as one used in known ransomware campaigns. It currently carries a trending score of 39 in the Threadlinqs vulnerability feed.

Affected products and versions

  • Mozilla: Firefox, Thunderbird, Thunderbird 131.0
  • Debian: Linux 11.0

Showing 4 of 5 recorded product entries.

How to fix CVE-2024-9680

The record marks a vendor fix as available for CVE-2024-9680. Patch reference: https://www.mozilla.org/en-US/security/advisories/mfsa2024-51/. Vendor advisory: https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2024-49039. Because CVE-2024-9680 is KEV-listed, US federal civilian agencies were required to apply the vendor fix, or stop using the product, by 2024-11-05. Apply the vendor fix referenced above to every affected product listed in this record, then confirm the running version against the vendor advisory.

Threat activity tracking CVE-2024-9680

No threat campaign in the Threadlinqs corpus currently references CVE-2024-9680, in its CVE list or as an indicator. The linkage is recomputed from the live corpus on every daily ingest, so this section fills in as soon as a tracked campaign cites the identifier.

Sources

Seeded from nvd and not yet processed by the Threadlinqs enrichment pipeline, so blank CVSS, EPSS or KEV fields above mean NOT MEASURED rather than measured-absent.