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CVE-2024-9680

9.8, critical Known exploited Used in ransomware

Mozilla Firefox Use-After-Free Vulnerability

NVD (opens in a new tab) CVE.org (opens in a new tab) CISA KEV catalogue (opens in a new tab)
CVSS
9.8, critical critical CVSS v3.1
EPSS, next 30 days
23% higher than 97.7% of scored CVEs
Exploitation
Confirmed in the wild
Published
9 Oct 20242 years ago

Known exploited

CISA added this to the Known Exploited Vulnerabilities Catalog on 15 Oct 2024 and links it to ransomware activity. US federal agencies had to remediate by 5 Nov 2024, a deadline that has passed.

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

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.

Details

Vendor
Mozilla
Product
Firefox
Weakness
CWE-416 (opens in a new tab)
Status
Analyzed
Updated
4 Aug 2026
Assigner
security@mozilla.org

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References 8

Patches and fixes 1

Advisories 2

Other references 5

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Other Mozilla CVEs

Every Mozilla CVE we hold

Same vendor in what we hold, not a known link between the flaws.

  • CVE-2022-26485 Mozilla Firefox Use-After-Free Vulnerability KEV EPSS 14% 8.8, high
  • CVE-2022-26486 Mozilla Firefox Use-After-Free Vulnerability KEV EPSS 2% 9.6, critical
  • CVE-2020-6819 Mozilla Firefox And Thunderbird Use-After-Free Vulnerability KEV EPSS 3% 8.1, high
  • CVE-2020-6820 Mozilla Firefox And Thunderbird Use-After-Free Vulnerability KEV EPSS 7% 8.1, high
  • CVE-2019-17026 Mozilla Firefox And Thunderbird Type Confusion Vulnerability KEV EPSS 46% 8.8, high
  • CVE-2019-11707 Mozilla Firefox and Thunderbird Type Confusion Vulnerability KEV EPSS 38% 8.8, high
  • CVE-2019-11708 Mozilla Firefox and Thunderbird Sandbox Escape Vulnerability KEV EPSS 56% 10, critical
  • CVE-2016-9079 Mozilla Firefox, Firefox ESR, and Thunderbird Use-After-Free Vulnerability KEV EPSS 88% 7.5, high

Beyond this page

Is CVE-2024-9680 in your network?

This page tells you how dangerous CVE-2024-9680 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

CVE-2024-9680 is in the CISA catalogue of exploited vulnerabilities: attackers are already exploiting it.

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    Detect it if it's exploited

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Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 17 Oct 2026, not the live upstream state.