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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Mozilla | Firefox | unspecified – < 131.0.2 | 131.0.2 |
| Mozilla | Firefox ESR | unspecified – < 128.3.1, unspecified – < 115.16.1 | 128.3.1 |
| Mozilla | Thunderbird | unspecified – < 131.0.1, unspecified – < 128.3.1, unspecified – < 115.16.0 | 131.0.1 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | firefox-esr | 128.3.1esr-1 | — |
| Debian 14 | thunderbird | 1:128.3.2esr-1 | — |
| Debian 13 | firefox-esr | 128.3.1esr-1 | — |
| Debian 13 | thunderbird | 1:128.3.2esr-1 | — |
| Debian 12 | firefox-esr | 128.3.1esr-1~deb12u1 | DSA-5788-1 |
| Debian 12 | thunderbird | 1:115.16.0esr-1~deb12u1 | DSA-5789-1 |
| Debian 11 | firefox-esr | 128.3.1esr-1~deb11u1 | DLA-3914-1 |
| Debian 11 | thunderbird | 1:115.16.0esr-1~deb11u1 | DLA-3916-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | mozjs102 +1 | No fix yet | — |
| Ubuntu 22.04 LTS | mozjs78 +2 | No fix yet | — |
| Ubuntu 22.04 LTS | thunderbird | 1:115.16.0+build2-0ubuntu0.22.04.1 | USN-7066-1 |
| Ubuntu 20.04 LTS | firefox | 131.0.2+build1-0ubuntu0.20.04.1 | USN-7065-1 |
| Ubuntu 20.04 LTS | mozjs52 +1 | No fix yet | — |
| Ubuntu 20.04 LTS | thunderbird | 1:115.16.0+build2-0ubuntu0.20.04.1 | USN-7066-1 |
| Ubuntu 18.04 LTS | mozjs38 +1 | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | firefox +1 | 128.3.1-2.el9_4 | RHSA-2024:9554, RHSA-2024:7958 |
| RHEL 9 | thunderbird | 128.3.1-1.el9_4 | RHSA-2024:9552, RHSA-2024:8025 |
| RHEL 8 | firefox | 128.3.1-2.el8_10 | RHSA-2024:7977 |
| RHEL 8 | thunderbird | 128.3.1-1.el8_10 | RHSA-2024:8024 |
Show 11 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9.2 EUS | firefox +1 | 128.3.1-2.el9_2 | RHSA-2024:8031 |
| RHEL 9.2 EUS | thunderbird | 128.3.1-1.el9_2 | RHSA-2024:8026 |
| RHEL 9.0 E4S | firefox | 128.3.1-2.el9_0 | RHSA-2024:8032 |
| RHEL 9.0 E4S | thunderbird | 128.3.1-1.el9_0 | RHSA-2024:8027 |
| RHEL 8.8 EUS | firefox | 128.3.1-2.el8_8 | RHSA-2024:8033 |
| RHEL 8.8 EUS | thunderbird | 128.3.1-1.el8_8 | RHSA-2024:8166 |
| RHEL 8.6 TUS | firefox | 128.3.1-2.el8_6 | RHSA-2024:8131 |
| RHEL 8.6 TUS | thunderbird | 128.3.1-1.el8_6 | RHSA-2024:8028 |
| RHEL 8.6 E4S | firefox | 128.3.1-2.el8_6 | RHSA-2024:8131 |
| RHEL 8.6 E4S | thunderbird | 128.3.1-1.el8_6 | RHSA-2024:8028 |
| RHEL 8.6 AUS | firefox | 128.3.1-2.el8_6 | RHSA-2024:8131 |
| RHEL 8.6 AUS | thunderbird | 128.3.1-1.el8_6 | RHSA-2024:8028 |
| RHEL 8.4 TUS | firefox | 128.3.1-2.el8_4 | RHSA-2024:8167 |
| RHEL 8.4 TUS | thunderbird | 128.3.1-1.el8_4 | RHSA-2024:8029 |
| RHEL 8.4 E4S | firefox | 128.3.1-2.el8_4 | RHSA-2024:8167 |
| RHEL 8.4 E4S | thunderbird | 128.3.1-1.el8_4 | RHSA-2024:8029 |
| RHEL 8.4 AUS | firefox | 128.3.1-2.el8_4 | RHSA-2024:8167 |
| RHEL 8.4 AUS | thunderbird | 128.3.1-1.el8_4 | RHSA-2024:8029 |
| RHEL 8.2 AUS | firefox | 128.3.1-2.el8_2 | RHSA-2024:8176 |
| RHEL 8.2 AUS | thunderbird | 128.3.1-1.el8_2 | RHSA-2024:8030 |
| RHEL 7 ELS | firefox | 128.3.1-2.el7_9 | RHSA-2024:8034 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | firefox +1 | 128.3.1-2.el9_4.alma.1 | ALSA-2024:9554, ALSA-2024:7958 |
| AlmaLinux 9 | thunderbird | 128.3.1-1.el9_4.alma.1 | ALSA-2024:9552, ALSA-2024:8025 |
| AlmaLinux 8 | firefox | 128.3.1-2.el8_10.alma.1 | ALSA-2024:7977 |
| AlmaLinux 8 | thunderbird | 128.3.1-1.el8_10.alma.1 | ALSA-2024:8024 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 9 | firefox | 128.3.1-2.el9_4 | RLSA-2024:7958 |
| Rocky Linux 9 | thunderbird | 128.3.1-1.el9_4 | RLSA-2024:8025 |
| Rocky Linux 8 | firefox | 128.3.1-2.el8_10 | RLSA-2024:7977 |
| Rocky Linux 8 | thunderbird | 128.3.1-1.el8_10 | RLSA-2024:8024 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP6 | MozillaFirefox | 128.3.1-150200.152.155.1 | SUSE-SU-2024:3614-1 |
| SLES 15 SP6 | MozillaThunderbird | 128.3.0-150200.8.182.1 | SUSE-SU-2024:3731-1, SUSE-SU-2024:3629-1 |
| SLES 15 SP5 | MozillaFirefox | 128.3.1-150200.152.155.1 | SUSE-SU-2024:3614-1 |
| SLES 15 SP5 | MozillaThunderbird | 128.3.0-150200.8.182.1 | SUSE-SU-2024:3731-1, SUSE-SU-2024:3629-1 |
| SLES 15 SP4 | MozillaFirefox | 128.3.1-150200.152.155.1 | SUSE-SU-2024:3614-1 |
| SLES 15 SP3 | MozillaFirefox | 128.3.1-150200.152.155.1 | SUSE-SU-2024:3614-1 |
| SLES 15 SP2 | MozillaFirefox | 128.3.1-150200.152.155.1 | SUSE-SU-2024:3614-1 |
Show 9 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP5 | MozillaFirefox | 128.3.1-112.231.1 | SUSE-SU-2024:3603-1 |
| SLES for SAP 15 SP4 | MozillaFirefox | 128.3.1-150200.152.155.1 | SUSE-SU-2024:3614-1 |
| SLES for SAP 15 SP3 | MozillaFirefox | 128.3.1-150200.152.155.1 | SUSE-SU-2024:3614-1 |
| SLES for SAP 15 SP2 | MozillaFirefox | 128.3.1-150200.152.155.1 | SUSE-SU-2024:3614-1 |
| SLES for SAP 12 SP5 | MozillaFirefox | 128.3.1-112.231.1 | SUSE-SU-2024:3603-1 |
| SLE HPC 15 SP4 | MozillaFirefox | 128.3.1-150200.152.155.1 | SUSE-SU-2024:3614-1 |
| SLE HPC 15 SP3 | MozillaFirefox | 128.3.1-150200.152.155.1 | SUSE-SU-2024:3614-1 |
| SLE HPC 15 SP2 | MozillaFirefox | 128.3.1-150200.152.155.1 | SUSE-SU-2024:3614-1 |
| SUSE Enterprise Storage 7.1 | MozillaFirefox | 128.3.1-150200.152.155.1 | SUSE-SU-2024:3614-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | MozillaFirefox | 131.0.2-1.1 | openSUSE-SU-2024:14393-1 |
| openSUSE Tumbleweed | firefox-esr | 128.5.1-1.1 | openSUSE-SU-2024:14572-1 |
| openSUSE Tumbleweed | mozjs128 +1 | 128.3.1-1.1 | openSUSE-SU-2024:14397-1, openSUSE-SU-2024:14394-1 |
| openSUSE Leap 15.6 | MozillaFirefox | 128.3.1-150200.152.155.1 | SUSE-SU-2024:3614-1 |
| openSUSE Leap 15.6 | MozillaThunderbird | 128.3.0-150200.8.182.1 | SUSE-SU-2024:3731-1, SUSE-SU-2024:3629-1 |
| openSUSE Leap 15.5 | MozillaFirefox | 128.3.1-150200.152.155.1 | SUSE-SU-2024:3614-1 |
| openSUSE Leap 15.5 | MozillaThunderbird | 128.3.0-150200.8.182.1 | SUSE-SU-2024:3731-1, SUSE-SU-2024:3629-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | mozjs | 128.3.1-r0 | — |
| Alpine v3.23 | mozjs | 128.3.1-r0 | — |
| Alpine v3.22 | mozjs | 128.3.1-r0 | — |
| Alpine v3.21 | mozjs | 128.3.1-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | thunderbird | 115.16.0-1.amzn2.0.1 | ALAS2-2024-2690 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | firefox +1 | 128.3.1-2.0.1.el9_4 | ELSA-2024-9554, ELSA-2024-7958 |
| Oracle Linux 9 | thunderbird | 128.3.1-1.0.1.el9_4 | ELSA-2024-9552, ELSA-2024-8025 |
| Oracle Linux 8 | firefox | 128.3.1-2.0.1.el8_10 | ELSA-2024-7977 |
| Oracle Linux 8 | thunderbird | 128.3.1-1.0.1.el8_10 | ELSA-2024-8024 |
| Oracle Linux 7 | firefox | 128.3.1-2.0.1.el7_9 | ELSA-2024-8034 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | firefox | 131.0.2-r0 | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
GitHub 3 repositories
-
tdonaworth/Firefox-CVE-2024-9680 ★ 11 · Oct 17, 2024
-
moscovium-mc/Tor-0day-JavaScript-Exploit ★ 10 · Nov 7, 2025
Firefox/Tor Browser 0day exploit analysis (CVE-2024-9680) A UAF in animation timelines leading to RCE. Patched.
-
PraiseImafidon/Version_Vulnerability_Scanner ★ 1 · Jan 2, 2025
A vulnerability scanner for Firefox and Thunderbird that checks if your versions are out of date and susceptible to CVE-2024-9680.
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 50
- ALSA-2024:8025 Important: thunderbird security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2024:7958 Important: firefox security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2024:9554 Important: firefox security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2024:9552 Important: thunderbird security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2024:7977 Important: firefox security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2024:8024 Important: thunderbird security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2024:9554 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2024:9552 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2024:8176 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2024:8167 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2024:8166 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2024:8131 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2024:8034 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2024:8033 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2024:8031 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2024:8032 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2024:8029 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2024:8030 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2024:8027 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2024:8028 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2024:8026 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2024:8024 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2024:8025 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2024:7958 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2024:7977 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- USN-7066-1 thunderbird vulnerability Ubuntu Security Notices (USN) · Apr 22, 2026
- USN-7065-1 firefox vulnerability Ubuntu Security Notices (USN) · Apr 22, 2026
- DSA-5788-1 firefox-esr - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-5789-1 thunderbird - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-3914-1 firefox-esr - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-3916-1 thunderbird - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2024:8025 Important: thunderbird security update Rocky Linux Security Advisories · Feb 5, 2026
- RLSA-2024:8024 Important: thunderbird security update Rocky Linux Security Advisories · Feb 5, 2026
- RLSA-2024:7977 Important: firefox security update Rocky Linux Security Advisories · Feb 5, 2026
- RLSA-2024:7958 Important: firefox security update Rocky Linux Security Advisories · Feb 4, 2026
- openSUSE-SU-2024:14394-1 MozillaThunderbird-128.3.1-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:3731-1 Security update for MozillaThunderbird SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:14397-1 libmozjs-128-0-128.3.1-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:3603-1 Security update for MozillaFirefox SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:3629-1 Security update for MozillaThunderbird SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:14393-1 MozillaFirefox-131.0.2-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:14572-1 firefox-esr-128.5.1-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:3614-1 Security update for MozillaFirefox SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2024-3138 Mozilla Firefox, Firefox ESR und Thunderbird: Schwachstelle ermöglicht Codeausführung BSI CERT-Bund (WID) · Dec 15, 2024
- ELSA-2024-9552 Important: thunderbird security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Nov 18, 2024
- ELSA-2024-9554 Important: firefox security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Nov 18, 2024
- ALAS2-2024-2690 Important: thunderbird security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Nov 15, 2024
- ELSA-2024-8034 Important: firefox security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Oct 24, 2024
- ELSA-2024-8025 Important: thunderbird security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Oct 14, 2024
- ELSA-2024-8024 Important: thunderbird security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Oct 14, 2024