{"cve":"CVE-2024-3856","nvd":{"published":"2024-04-16T16:15:08.527","modified":"2026-06-17T07:45:17.957","status":"Analyzed","description":"A use-after-free could occur during WASM execution if garbage collection ran during the creation of an array. This vulnerability affects Firefox < 125.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","score":8.8},"cwes":["CWE-416"],"references":["https://bugzilla.mozilla.org/show_bug.cgi?id=1885829","https://www.mozilla.org/security/advisories/mfsa2024-18/","https://bugzilla.mozilla.org/show_bug.cgi?id=1885829","https://www.mozilla.org/security/advisories/mfsa2024-18/"],"products":["mozilla:firefox"],"source":"nvd","synced_at":"2026-10-19T21:48:32.179249784+00:00"},"epss":{"cve":"CVE-2024-3856","score":0.00613,"percentile":0.49362,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}