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

Published Oct 8, 2024
·
Updated

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.

Other sources

Firefox 128.3.1 ESR Chemspill, scheduled to drop TBA

Planning: - A 131.0.2 Desktop and Mobile dot release - A 115.16.1esr dot release and a 128.3.1esr release - Patch landed in beta for 132.0b5 which will be released Wednesday 10-09 as scheduled

— Red Hat

Mozilla Firefox and Firefox ESR contain a use-after-free vulnerability in Animation timelines that allows for code execution in the content process.

— CISA

Affected Software

27 affected componentsFixes available
Mozilla Thunderbird<115.16
115.16
Mozilla Thunderbird<128.3.1
128.3.1
Mozilla Thunderbird<131.0.1
131.0.1
Mozilla Firefox<131.0.2
131.0.2
Mozilla Firefox ESR<115.16.1
115.16.1
Mozilla Firefox ESR<128.3.1
128.3.1
Mozilla Firefox<115.16.1
Mozilla Firefox<131.0.2
Mozilla Firefox>=128.1.0<128.3.1
Mozilla Thunderbird<115.16.0
Mozilla Thunderbird>=128.0.1<128.3.1
Mozilla Thunderbird=131.0
Debian Debian Linux=11.0
Mozilla Firefox
debian/firefox-esr<128.3.1esr-1~deb12u1
128.3.1esr-1~deb12u1
debian/firefox-esr<128.3.1esr-1
128.3.1esr-1
debian/firefox-esr<128.3.1esr-1
128.3.1esr-1
debian/thunderbird<1:115.16.0esr-1~deb12u1
1:115.16.0esr-1~deb12u1
debian/thunderbird<1:128.3.2esr-1
1:128.3.2esr-1
debian/thunderbird<1:128.3.2esr-1
1:128.3.2esr-1
alpine/mozjs<128.3.1-r0
128.3.1-r0
alpine/mozjs<128.3.1-r0
128.3.1-r0
alpine/mozjs<128.3.1-r0
128.3.1-r0
alpine/mozjs<128.3.1-r0
128.3.1-r0
debian/firefox
159.0.1-1
debian/firefox-esr
140.12.0esr-1~deb12u1153.6.0esr-1~deb12u2140.15.0esr-1~deb13u1153.6.0esr-1~deb13u1153.5.1esr-1153.6.0esr-1
debian/thunderbird
1:140.12.0esr-1~deb12u11:153.6.0esr-1~deb12u21:140.12.0esr-1~deb13u11:153.6.0esr-1~deb13u11:153.5.0esr-11:153.6.0esr-1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade Thunderbird to a version that resolves this vulnerability.

    Fixed in 115.16
  2. Upgrade

    Upgrade Thunderbird to a version that resolves this vulnerability.

    Fixed in 128.3.1
  3. Upgrade

    Upgrade Thunderbird to a version that resolves this vulnerability.

    Fixed in 131.0.1
  4. Upgrade

    Upgrade Firefox to a version that resolves this vulnerability.

    Fixed in 131.0.2
  5. Upgrade

    Upgrade Firefox ESR to a version that resolves this vulnerability.

    Fixed in 115.16.1
  6. Upgrade

    Upgrade Firefox ESR to a version that resolves this vulnerability.

    Fixed in 128.3.1
  7. Upgrade

    Upgrade debian/firefox-esr to a version that resolves this vulnerability.

    Fixed in 128.3.1esr-1~deb12u1
  8. Upgrade

    Upgrade debian/firefox-esr to a version that resolves this vulnerability.

    Fixed in 128.3.1esr-1
  9. Upgrade

    Upgrade debian/thunderbird to a version that resolves this vulnerability.

    Fixed in 1:115.16.0esr-1~deb12u1
  10. Upgrade

    Upgrade debian/thunderbird to a version that resolves this vulnerability.

    Fixed in 1:128.3.2esr-1
  11. Upgrade

    Upgrade alpine/mozjs to a version that resolves this vulnerability.

    Fixed in 128.3.1-r0
  12. Upgrade

    Upgrade debian/firefox to a version that resolves this vulnerability.

    Fixed in 159.0.1-1
  13. Upgrade

    Upgrade debian/firefox-esr to a version that resolves this vulnerability.

    Fixed in 140.12.0esr-1~deb12u1Fixed in 153.6.0esr-1~deb12u2Fixed in 140.15.0esr-1~deb13u1Fixed in 153.6.0esr-1~deb13u1Fixed in 153.5.1esr-1Fixed in 153.6.0esr-1
  14. Upgrade

    Upgrade debian/thunderbird to a version that resolves this vulnerability.

    Fixed in 1:140.12.0esr-1~deb12u1Fixed in 1:153.6.0esr-1~deb12u2Fixed in 1:140.12.0esr-1~deb13u1Fixed in 1:153.6.0esr-1~deb13u1Fixed in 1:153.5.0esr-1Fixed in 1:153.6.0esr-1
  15. Upgrade

    Upgrade Mozilla Firefox to a version that resolves this vulnerability.

    Fixed in 131.0.2
  16. Upgrade

    Upgrade Mozilla Firefox ESR to a version that resolves this vulnerability.

    Fixed in 128.3.1
  17. Upgrade

    Upgrade Mozilla Firefox ESR to a version that resolves this vulnerability.

    Fixed in 115.16.1esr
  18. Upgrade

    Upgrade Mozilla Thunderbird to a version that resolves this vulnerability.

    Fixed in 131.0.1
  19. Upgrade

    Upgrade Mozilla Thunderbird to a version that resolves this vulnerability.

    Fixed in 128.3.1
  20. Upgrade

    Upgrade Mozilla Thunderbird to a version that resolves this vulnerability.

    Fixed in 115.16.0

Event History

Oct 8, 2024
Data Sourced
via Red Hat·10:57 PM
DescriptionSeverityAffected Software
Oct 9, 2024
CVE Published
via Mozilla·12:00 AM
CVE Published
via MITRE·12:59 PM
Data Sourced
via MITRE·12:59 PM
DescriptionWeakness
Data Sourced
via NVD·01:15 PM
RemedyDescriptionSeverityWeaknessAffected Software
Data Sourced
via OSV·01:15 PM
DescriptionSeverityAffected Software
News Published
via BleepingComputer·05:34 PM
Oct 10, 2024
News Published
via The Register·11:30 AM
Oct 15, 2024
Known Ransomware
via CISA·12:00 AM
Data Sourced
via CISA·12:00 AM
RemedyDescriptionWeaknessAffected Software
Oct 16, 2024
News Published
via BleepingComputer·07:53 PM
Oct 17, 2024
Exploit Published
04:10 PM
Nov 26, 2024
News Published
via BleepingComputer·12:13 PM
Dec 1, 2024
News Published
via The Register·08:24 PM
Mar 27, 2025
News Published
via BleepingComputer·02:48 PM
Aug 11, 2025
News Published
via BleepingComputer·06:05 PM

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

What is the severity of CVE-2024-9680?

CVE-2024-9680 is considered a critical vulnerability due to its potential for code execution exploits.

2

How do I fix CVE-2024-9680?

To fix CVE-2024-9680, update your Mozilla Firefox or Thunderbird to the latest versions recommended by Mozilla.

3

What type of vulnerability is CVE-2024-9680?

CVE-2024-9680 is a use-after-free vulnerability that can allow attackers to execute arbitrary code.

4

Which software versions are affected by CVE-2024-9680?

CVE-2024-9680 affects multiple versions of Mozilla Firefox and Thunderbird, prior to the latest security releases.

5

Is CVE-2024-9680 actively exploited?

Yes, there have been reports of CVE-2024-9680 being actively exploited in the wild.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203