{
    "id": "CVE-2025-6424",
    "published": "2025-06-24 13:15:23",
    "last_modified": "2026-10-05 15:10:00",
    "cvss_score": "9.8",
    "cvss_severity": "CRITICAL",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
    "cwe": "CWE-416",
    "description": "A use-after-free in FontFaceSet resulted in a potentially exploitable crash. This vulnerability was fixed in Firefox 140, Firefox ESR 115.25, Firefox ESR 128.12, Thunderbird 140, and Thunderbird 128.12.",
    "epss_score": "0.04390",
    "epss_percentile": "0.91060",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-10-08 18:17:49",
    "priority": {
        "rank": 3,
        "label": "In your normal cycle",
        "why": "Critical by CVSS (9.8), but no sign of active exploitation."
    },
    "products": [
        {
            "vendor": "mozilla",
            "product": "firefox"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "https://bugzilla.mozilla.org/show_bug.cgi?id=1966423",
        "https://www.mozilla.org/security/advisories/mfsa2025-51/",
        "https://www.mozilla.org/security/advisories/mfsa2025-52/",
        "https://www.mozilla.org/security/advisories/mfsa2025-53/",
        "https://www.mozilla.org/security/advisories/mfsa2025-54/",
        "https://www.mozilla.org/security/advisories/mfsa2025-55/",
        "https://lists.debian.org/debian-lts-announce/2025/06/msg00029.html",
        "https://lists.debian.org/debian-lts-announce/2025/07/msg00002.html"
    ]
}