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.
CVE-2024-9680
“—” beside the score: it is equal to NVD's CVSS score.
Score elevated to 9.8 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2024-10-15), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 9.8 retained for reference. Confidence: HIGH.
Also known asEUVD-2024-50087 (ENISA EUVD) · GHSA-hm3j-qgpw-pj98 (GitHub Security Advisories)Source: ENISA EUVD
- Actively exploited in the wild (CISA-KEV) — the reason this is sooner than the SSVC decision on this page at low mission impact
A fix is available — apply it.
- CVSS v3
- 9.8
- EG Score
- 9.8CRITICALhigh confidence
- EG Risk
- 99EG Risk 99/100
EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.
How it’s computed (value × EchelonGraph’s weight)Severity98% × 45%Impact severity (EG Severity): CVSS 9.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.Exploitation100% × 40%Fixed at 100% for a CISA KEV listing: EchelonGraph's rule.Automatability100% × 15%CISA's SSVC Automatable value: yes (Vulnrichment).SSVC (CISA's decision table, applied by EchelonGraph): Attend at low mission impact; Act at medium or high.Exploitation active (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.Action: A fix is available. Apply it sooner than your standard update timelines at low mission impact and as soon as possible at medium or high. - EPSS PROB
- 23%
- EPSS %ILE
- 97th
- KEV
- ⚠ Exploited
What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)
The EG score (9.8): severity, escalated by confirmed exploitation. This CVE's 9.8 is its impact severity (EG Severity), not escalated.
- EG Severity
- 9.8 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
- EG Likelihood
- 23% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-01). FIRST's exploitation probability, not an EchelonGraph model.
- Confirmed exploitation
- CISA KEV and EG-KEV Tier 1 (exploited in the wild)Reported apart from the likelihood: an observed fact, not a probability.
- EG Priority
- SSVC Act at medium mission impactAttend at low mission impact; Act at medium or high.CISA BOD 26-04: 3 days & forensic triage if the affected system is publicly exposed; 3 days & forensic triage if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.
SSVC (CISA's decision table, applied by EchelonGraph)Attend at low mission impact; Act at medium or high.
A fix is available. Apply it sooner than your standard update timelines at low mission impact and as soon as possible at medium or high.
Exploitation active (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table
BOD 26-04 (CISA's remediation timeline, Table 1)3 days & forensic triage if the affected system is publicly exposed; 3 days & forensic triage if it is not.
The score's inputs: In CISA KEV yes (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it
CISA required action“Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.”
Quoted verbatim from CISA's Known Exploited Vulnerabilities catalog. CISA directs it at US federal civilian executive branch agencies under Binding Operational Directive (BOD) 26-04, which replaced BOD 22-01 on 10 June 2026; it is not EchelonGraph's advice. CISA's notes: https://www.mozilla.org/en-US/security/advisories/mfsa2024-51/ · https://nvd.nist.gov/vuln/detail/CVE-2024-9680
Published
October 9, 2024
Last Modified
August 4, 2026
Advisory Details (8)
Auto-updated Oct 27, 2026Known Exploited Vulnerabilities Catalog | CISA
Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-9680[SECURITY] [DLA 3916-1] thunderbird security update
https://lists.debian.org/debian-lts-announce/2024/10/msg00006.html[SECURITY] [DLA 3914-1] firefox-esr security update
https://lists.debian.org/debian-lts-announce/2024/10/msg00005.html281992 – www/firefox: 0day 9.8 score CVE-2024-9680 upgrade ASAP.
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=281992Security Vulnerability fixed in Thunderbird 131.0.1, Thunderbird 128.3.1, Thunderbird 115.16.0 — Mozilla
https://www.mozilla.org/security/advisories/mfsa2024-52/Security Vulnerability fixed in Firefox 131.0.2, Firefox ESR 128.3.1, Firefox ESR 115.16.1 — Mozilla
https://www.mozilla.org/security/advisories/mfsa2024-51/Security Update Guide - Microsoft Security Response Center
https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2024-490391923344 - (CVE-2024-9680) UAF in mozilla::dom::DocumentTimeline::RemoveAnimation(mozilla::dom::Animation*) / mozilla::LinkedListElement<mozilla::dom::Animation>::remove()
https://bugzilla.mozilla.org/show_bug.cgi?id=1923344Vendor Advisories for CVE-2024-9680(19)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- RHSA-2024:9554Red Hat Product SecurityHigh
Red Hat Security Advisory: firefox security update
- RHSA-2024:9552Red Hat Product SecurityHigh
Red Hat Security Advisory: thunderbird security update
- RHSA-2024:8176Red Hat Product SecurityHigh
Red Hat Security Advisory: firefox security update
- RHSA-2024:8166Red Hat Product SecurityHigh
Red Hat Security Advisory: thunderbird security update
- RHSA-2024:8167Red Hat Product SecurityHigh
Red Hat Security Advisory: firefox security update
- RHSA-2024:8131Red Hat Product SecurityHigh
Red Hat Security Advisory: firefox security update
- RHSA-2024:8033Red Hat Product SecurityHigh
Red Hat Security Advisory: firefox security update
- RHSA-2024:8034Red Hat Product SecurityHigh
Red Hat Security Advisory: firefox security update
- +11 more
Patch Availability(23)
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(8 across 4 ecosystems)
Debian:11(2)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| firefox-esr | 102.1.0esr-1 ... 91.9.1esr-1~deb9u1 (177 versions) |
| — |
| thunderbird | 1:102.0.1-1 ... 1:91.9.0-1~deb9u1 (205 versions) |
| — |
Debian:12(2)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| firefox-esr | 102.11.0esr-1 ... 128.3.1esr-1~deb11u1 (84 versions) |
| — |
| thunderbird | 1:102.11.0-1 ... 1:115.9.0-1~deb12u1 (90 versions) |
| — |
Debian:13(2)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| firefox-esr | — |
| — |
| thunderbird | — |
| — |
Debian:14(2)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| firefox-esr | — |
| — |
| thunderbird | — |
| — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Additional Vendor Advisories
(4)
Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.
Data Freshness Timeline
(refreshed 28× in last 7d / 206× in last 30d)
Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.
Showing the most recent 100 of 1,915 refreshes on record for this CVE.
A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 1,815 oldest rows on record are not shown and were not checked, so the counts can still include repeats.
- 2026-11-02 08:11 UTCEG score recompute
- 2026-11-02 08:11 UTCVendor advisory
- 2026-11-02 08:11 UTCGHSA enrichmentGHSA-hm3j-qgpw-pj98 · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-11-01 10:17 UTCEG score recompute
- 2026-11-01 10:17 UTCVendor advisory
- 2026-11-01 10:17 UTCGHSA enrichmentGHSA-hm3j-qgpw-pj98 · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-31 16:30 UTCEPSS rescoreEPSS 23% · 97th percentile
- 2026-10-31 12:20 UTCEG score recompute
- 2026-10-31 12:20 UTCVendor advisory
- 2026-10-31 12:20 UTCGHSA enrichmentGHSA-hm3j-qgpw-pj98 · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-30 16:32 UTCEPSS rescoreEPSS 23% · 97th percentile
- 2026-10-30 14:25 UTCVendor advisory
- 2026-10-30 14:25 UTCGHSA enrichmentGHSA-hm3j-qgpw-pj98 · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-29 16:32 UTCEG score recompute
- 2026-10-29 16:32 UTCVendor advisory
- 2026-10-29 16:32 UTCGHSA enrichmentGHSA-hm3j-qgpw-pj98 · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-29 16:31 UTCEPSS rescoreEPSS 23% · 97th percentile
- 2026-10-28 18:38 UTCEG score recompute
- 2026-10-28 18:38 UTCVendor advisory
- 2026-10-28 18:37 UTCGHSA enrichmentGHSA-hm3j-qgpw-pj98 · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-28 16:30 UTCEPSS rescoreEPSS 23% · 97th percentile
- 2026-10-27 20:41 UTCEG score recompute
- 2026-10-27 20:41 UTCVendor advisory
- 2026-10-27 20:41 UTCGHSA enrichmentGHSA-hm3j-qgpw-pj98 · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-27 16:30 UTCEPSS rescoreEPSS 23% · 97th percentile
Show 75 moreShow fewer
- 2026-10-26 22:48 UTCEG score recompute
- 2026-10-26 22:48 UTCVendor advisory
- 2026-10-26 22:47 UTCGHSA enrichmentGHSA-hm3j-qgpw-pj98 · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-26 00:51 UTCVendor advisory
- 2026-10-26 00:51 UTCGHSA enrichmentGHSA-hm3j-qgpw-pj98 · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-25 16:50 UTCEG score recompute
- 2026-10-25 16:30 UTCEPSS rescoreEPSS 23% · 97th percentile
- 2026-10-25 02:57 UTCEG score recompute
- 2026-10-25 02:57 UTCVendor advisory
- 2026-10-25 02:57 UTCGHSA enrichmentGHSA-hm3j-qgpw-pj98 · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-24 16:30 UTCEPSS rescoreEPSS 23% · 97th percentile
- 2026-10-24 05:03 UTCEG score recompute
- 2026-10-24 05:03 UTCVendor advisory
- 2026-10-24 05:02 UTCGHSA enrichmentGHSA-hm3j-qgpw-pj98 · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-23 16:30 UTCEPSS rescoreEPSS 23% · 97th percentile
- 2026-10-23 07:08 UTCEG score recompute
- 2026-10-23 07:08 UTCVendor advisory
- 2026-10-23 07:08 UTCGHSA enrichmentGHSA-hm3j-qgpw-pj98 · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-22 16:32 UTCEPSS rescoreEPSS 23% · 97th percentile
- 2026-10-22 09:13 UTCEG score recompute
- 2026-10-22 09:13 UTCVendor advisory
- 2026-10-22 09:12 UTCGHSA enrichmentGHSA-hm3j-qgpw-pj98 · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-21 16:30 UTCEPSS rescoreEPSS 23% · 97th percentile
- 2026-10-21 11:19 UTCEG score recompute
- 2026-10-21 11:19 UTCVendor advisory
- 2026-10-21 11:18 UTCGHSA enrichmentGHSA-hm3j-qgpw-pj98 · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-20 16:31 UTCEPSS rescoreEPSS 23% · 97th percentile
- 2026-10-20 13:24 UTCEG score recompute
- 2026-10-20 13:24 UTCVendor advisory
- 2026-10-20 13:24 UTCGHSA enrichmentGHSA-hm3j-qgpw-pj98 · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-19 16:30 UTCEPSS rescoreEPSS 23% · 97th percentile
- 2026-10-19 15:30 UTCVendor advisory
- 2026-10-19 15:30 UTCGHSA enrichmentGHSA-hm3j-qgpw-pj98 · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-18 17:36 UTCEG score recompute
- 2026-10-18 17:36 UTCVendor advisory
- 2026-10-18 17:36 UTCGHSA enrichmentGHSA-hm3j-qgpw-pj98 · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-18 05:54 UTCEG score recompute
- 2026-10-17 19:42 UTCEG score recompute
- 2026-10-17 19:42 UTCVendor advisory
- 2026-10-17 19:42 UTCGHSA enrichmentGHSA-hm3j-qgpw-pj98 · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-17 16:32 UTCEPSS rescoreEPSS 23% · 97th percentile
- 2026-10-16 21:48 UTCEG score recompute
- 2026-10-16 21:48 UTCVendor advisory
- 2026-10-16 21:48 UTCGHSA enrichmentGHSA-hm3j-qgpw-pj98 · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-16 16:37 UTCEPSS rescoreEPSS 23% · 97th percentile
- 2026-10-15 23:54 UTCEG score recompute
- 2026-10-15 23:54 UTCVendor advisory
- 2026-10-15 23:54 UTCGHSA enrichmentGHSA-hm3j-qgpw-pj98 · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-15 16:30 UTCEPSS rescoreEPSS 23% · 97th percentile
- 2026-10-15 01:59 UTCEG score recompute
- 2026-10-15 01:59 UTCVendor advisory
- 2026-10-15 01:59 UTCGHSA enrichmentGHSA-hm3j-qgpw-pj98 · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-14 16:30 UTCEPSS rescoreEPSS 23% · 97th percentile
- 2026-10-14 04:06 UTCEG score recompute
- 2026-10-14 04:06 UTCVendor advisory
- 2026-10-14 04:05 UTCGHSA enrichmentGHSA-hm3j-qgpw-pj98 · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-13 16:31 UTCEPSS rescoreEPSS 23% · 97th percentile
- 2026-10-13 06:12 UTCVendor advisory
- 2026-10-13 06:12 UTCGHSA enrichmentGHSA-hm3j-qgpw-pj98 · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-12 17:29 UTCEG score recompute
- 2026-10-12 16:32 UTCEPSS rescoreEPSS 23% · 97th percentile
- 2026-10-12 08:16 UTCVendor advisory
- 2026-10-12 08:16 UTCGHSA enrichmentGHSA-hm3j-qgpw-pj98 · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-12 04:11 UTCVendor advisory
- 2026-10-12 04:10 UTCGHSA enrichmentGHSA-hm3j-qgpw-pj98 · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-12 00:06 UTCVendor advisory
- 2026-10-12 00:06 UTCGHSA enrichmentGHSA-hm3j-qgpw-pj98 · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-11 19:59 UTCEG score recompute
- 2026-10-11 19:59 UTCVendor advisory
- 2026-10-11 19:58 UTCGHSA enrichmentGHSA-hm3j-qgpw-pj98 · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-11 19:09 UTCEG score recompute
- 2026-10-11 15:53 UTCVendor advisory
- 2026-10-11 15:53 UTCGHSA enrichmentGHSA-hm3j-qgpw-pj98 · GitHub severity CRITICAL · GitHub CVSS 9.8
- 2026-10-11 15:50 UTCEG score recompute
- 2026-10-11 13:46 UTCEPSS rescoreEPSS 23% · 97th percentile
Publicly available exploits
(2 references)Public exploit code is referenced for this CVE (2 GitHub PoCs). Defenders should treat patch urgency accordingly.
- GitHub PoCmoscovium-mc/Tor-0day-JavaScript-ExploitPublished Nov 7, 2025
Firefox/Tor Browser 0day exploit analysis (CVE-2024-9680) A UAF in animation timelines leading to RCE. Patched.
Open source ↗ - Open source ↗GitHub PoCtdonaworth/Firefox-CVE-2024-9680Published Oct 17, 2024
Related CVEs(same vendor + same CWE)
Same vendor
10 shownredhat:RHSA-2024:9552
Frequently asked(6)
What is CVE-2024-9680?
When was the CVE record for CVE-2024-9680 published?
Is CVE-2024-9680 actively exploited?
What is the CVSS score of CVE-2024-9680?
Which products are affected by CVE-2024-9680?
How do I remediate CVE-2024-9680?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2024-9680
Is Your Infrastructure Affected by CVE-2024-9680?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.