{
    "id": "CVE-2021-34552",
    "published": "2021-07-13 17:15:09",
    "last_modified": "2026-06-17 03:56:06",
    "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-120",
    "description": "Pillow through 8.2.0 and PIL (aka Python Imaging Library) through 1.1.7 allow an attacker to pass controlled parameters directly into a convert function to trigger a buffer overflow in Convert.c.",
    "epss_score": "0.03188",
    "epss_percentile": "0.87728",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-10-10 18:17:26",
    "priority": {
        "rank": 3,
        "label": "In your normal cycle",
        "why": "Critical by CVSS (9.8), but no sign of active exploitation."
    },
    "products": [
        {
            "vendor": "debian",
            "product": "debian_linux"
        },
        {
            "vendor": "fedoraproject",
            "product": "fedora"
        },
        {
            "vendor": "python",
            "product": "pillow"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "https://lists.debian.org/debian-lts-announce/2021/07/msg00018.html",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7V6LCG525ARIX6LX5QRYNAWVDD2MD2SV/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VUGBBT63VL7G4JNOEIPDJIOC34ZFBKNJ/",
        "https://pillow.readthedocs.io/en/stable/releasenotes/8.3.0.html#buffer-overflow",
        "https://pillow.readthedocs.io/en/stable/releasenotes/index.html",
        "https://security.gentoo.org/glsa/202211-10",
        "https://lists.debian.org/debian-lts-announce/2021/07/msg00018.html",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7V6LCG525ARIX6LX5QRYNAWVDD2MD2SV/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VUGBBT63VL7G4JNOEIPDJIOC34ZFBKNJ/",
        "https://pillow.readthedocs.io/en/stable/releasenotes/8.3.0.html#buffer-overflow",
        "https://pillow.readthedocs.io/en/stable/releasenotes/index.html",
        "https://security.gentoo.org/glsa/202211-10"
    ]
}