CASCACascade Atlas

Evidence dossier

CVE-2024-9680

CVE-2024-9680

74.1–89.1Priority evidence range
As known Jul 19, 2026, 5:00 AM UTCgen-56ccdaf9

Normalized restatement

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.

State
PUBLISHED
Published
Oct 9, 2024
Updated
Nov 3, 2025
Evidence coverage
85%
CISA KEVCatalog member

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

FIRST EPSS23.18%

2026-07-18 · v2026.06.15 · percentile 97.5%

Source stateNo scored conflict

Distinct CVSS assessments remain side by side; none are averaged.

Source comparison

Who said what

CISA-ADPindependent enrichment
container

CISA ADP Vulnrichment

CVEderivative copy
container

CVE Program Container

mozillaoriginal assertion
container

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.

CISA KEVoriginal assertion
observed_exploitation

Mozilla Firefox Use-After-Free Vulnerability

FIRST EPSSoriginal assertion
model_probability

Probability 0.231840000000; percentile 0.975140000000

Applicability

Cited product scope

Trace impact →
mozillafirefox
[{"status": "affected", "version": "0", "lessThan": "131.0.2", "versionType": "custom"}]unknown
mozillafirefox_esr
[{"status": "affected", "version": "0", "lessThan": "128.3.1", "versionType": "custom"}, {"status": "affected", "version": "0", "lessThan": "115.16.1", "versionType": "custom"}]unknown
mozillafirefox_esr
[{"status": "affected", "version": "0", "lessThan": "128.3.1", "versionType": "custom"}, {"status": "affected", "version": "0", "lessThan": "115.16.1", "versionType": "custom"}]unknown
mozillathunderbird
[{"status": "affected", "version": "0", "lessThan": "131.0.1", "versionType": "custom"}, {"status": "affected", "version": "0", "lessThan": "128.3.1", "versionType": "custom"}, {"status": "affected", "version": "0", "lessThan": "115.16.0", "versionType": "custom"}]unknown
mozillathunderbird
[{"status": "affected", "version": "0", "lessThan": "131.0.1", "versionType": "custom"}, {"status": "affected", "version": "0", "lessThan": "128.3.1", "versionType": "custom"}, {"status": "affected", "version": "0", "lessThan": "115.16.0", "versionType": "custom"}]unknown
mozillathunderbird
[{"status": "affected", "version": "0", "lessThan": "131.0.1", "versionType": "custom"}, {"status": "affected", "version": "0", "lessThan": "128.3.1", "versionType": "custom"}, {"status": "affected", "version": "0", "lessThan": "115.16.0", "versionType": "custom"}]unknown
MozillaFirefox
[{"status": "affected", "version": "unspecified", "lessThan": "131.0.2", "versionType": "custom"}]unknown
MozillaFirefox ESR
[{"status": "affected", "version": "unspecified", "lessThan": "128.3.1", "versionType": "custom"}]unknown
MozillaFirefox ESR
[{"status": "affected", "version": "unspecified", "lessThan": "115.16.1", "versionType": "custom"}]unknown
MozillaThunderbird
[{"status": "affected", "version": "unspecified", "lessThan": "131.0.1", "versionType": "custom"}]unknown
MozillaThunderbird
[{"status": "affected", "version": "unspecified", "lessThan": "128.3.1", "versionType": "custom"}]unknown
MozillaThunderbird
[{"status": "affected", "version": "unspecified", "lessThan": "115.16.0", "versionType": "custom"}]unknown
Unknown vendorUnknown product
cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*; end excluding 131.0.2supported
Unknown vendorUnknown product
cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*; end excluding 115.16.1supported
Unknown vendorUnknown product
cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*; start including 128.1.0; end excluding 128.3.1supported
Unknown vendorUnknown product
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*; end excluding 115.16.0supported
Unknown vendorUnknown product
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*; start including 128.0.1; end excluding 128.3.1supported
Unknown vendorUnknown product
cpe:2.3:a:mozilla:thunderbird:131.0:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*supported

Assessments

CVSS by origin

9.8
nvd@nist.govCVSS 3.1 · role PrimaryCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8
134c704f-9b21-4f2e-91b3-4a467353bcc0CVSS 3.1 · role SecondaryCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8
CISA-ADPCVSS 3.1 · role unknownCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Limitations and unknowns

  • KEV membership is authoritative for the catalog, not proof of exposure in any environment.
  • EPSS is a dated model probability and not an individual-environment prediction.
  • Affected or fixed status applies only to the exact cited product and version scope; unresolved scope remains unknown.
  • NVD-carried upstream facts remain derivative and are not independent corroboration.
  • Only NVD metrics validated under the generation-bound calculator are Public Priority eligible; direct CVE record metrics remain display-only.
  • NVD CVSS source eligibility is closed: NVD-authored, exact record-source, or registered same-CVE container origin; unmapped sources remain display-only.
  • Factor D is unknown in Public Core because no accepted canonical mapping-obligation ledger is present.
  • Core replay supports the active and immediately prior generation; retrospective valid-at replay is deferred.