{
    "id": "CVE-2020-12284",
    "published": "2020-04-28 06:15:10",
    "last_modified": "2026-06-17 02:51:34",
    "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-787",
    "description": "cbs_jpeg_split_fragment in libavcodec/cbs_jpeg.c in FFmpeg 4.1 and 4.2.2 has a heap-based buffer overflow during JPEG_MARKER_SOS handling because of a missing length check.",
    "epss_score": "0.03850",
    "epss_percentile": "0.89867",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-10-08 18:17:24",
    "priority": {
        "rank": 3,
        "label": "In your normal cycle",
        "why": "Critical by CVSS (9.8), but no sign of active exploitation."
    },
    "products": [
        {
            "vendor": "canonical",
            "product": "ubuntu_linux"
        },
        {
            "vendor": "debian",
            "product": "debian_linux"
        },
        {
            "vendor": "ffmpeg",
            "product": "ffmpeg"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19734",
        "https://github.com/FFmpeg/FFmpeg/commit/1812352d767ccf5431aa440123e2e260a4db2726",
        "https://github.com/FFmpeg/FFmpeg/commit/a3a3730b5456ca00587455004d40c047f7b20a99",
        "https://security.gentoo.org/glsa/202007-58",
        "https://usn.ubuntu.com/4431-1/",
        "https://www.debian.org/security/2020/dsa-4722",
        "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19734",
        "https://github.com/FFmpeg/FFmpeg/commit/1812352d767ccf5431aa440123e2e260a4db2726",
        "https://github.com/FFmpeg/FFmpeg/commit/a3a3730b5456ca00587455004d40c047f7b20a99",
        "https://security.gentoo.org/glsa/202007-58",
        "https://usn.ubuntu.com/4431-1/",
        "https://www.debian.org/security/2020/dsa-4722"
    ]
}