{
    "id": "CVE-2018-18557",
    "published": "2018-10-22 16:29:00",
    "last_modified": "2026-06-17 01:47:29",
    "cvss_score": "8.8",
    "cvss_severity": "HIGH",
    "cvss_version": "3.0",
    "cvss_vector": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
    "cwe": "CWE-787",
    "description": "LibTIFF 3.9.3, 3.9.4, 3.9.5, 3.9.6, 3.9.7, 4.0.0alpha4, 4.0.0alpha5, 4.0.0alpha6, 4.0.0beta7, 4.0.0, 4.0.1, 4.0.2, 4.0.3, 4.0.4, 4.0.4beta, 4.0.5, 4.0.6, 4.0.7, 4.0.8 and 4.0.9 (with JBIG enabled) decodes arbitrarily-sized JBIG into a buffer, ignoring the buffer size, which leads to a tif_jbig.c JBIGDecode out-of-bounds write.",
    "epss_score": "0.14960",
    "epss_percentile": "0.96609",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-09-30 18:17:19",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "canonical",
            "product": "ubuntu_linux"
        },
        {
            "vendor": "debian",
            "product": "debian_linux"
        },
        {
            "vendor": "libtiff",
            "product": "libtiff"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "45694",
            "title": "libtiff 4.0.9 - Decodes Arbitrarily Sized JBIG into a Target Buffer",
            "date": "2018-10-25",
            "url": "https://www.exploit-db.com/exploits/45694"
        }
    ],
    "refs_list": [
        "https://access.redhat.com/errata/RHSA-2019:2053",
        "https://github.com/Hack-Me/Pocs_for_Multi_Versions/tree/main/CVE-2018-18557",
        "https://gitlab.com/libtiff/libtiff/commit/681748ec2f5ce88da5f9fa6831e1653e46af8a66",
        "https://gitlab.com/libtiff/libtiff/merge_requests/38",
        "https://lists.debian.org/debian-lts-announce/2018/10/msg00019.html",
        "https://security.gentoo.org/glsa/201904-15",
        "https://usn.ubuntu.com/3864-1/",
        "https://usn.ubuntu.com/3906-2/",
        "https://www.debian.org/security/2018/dsa-4349",
        "https://www.exploit-db.com/exploits/45694/",
        "https://access.redhat.com/errata/RHSA-2019:2053",
        "https://github.com/Hack-Me/Pocs_for_Multi_Versions/tree/main/CVE-2018-18557",
        "https://gitlab.com/libtiff/libtiff/commit/681748ec2f5ce88da5f9fa6831e1653e46af8a66",
        "https://gitlab.com/libtiff/libtiff/merge_requests/38",
        "https://lists.debian.org/debian-lts-announce/2018/10/msg00019.html",
        "https://security.gentoo.org/glsa/201904-15",
        "https://usn.ubuntu.com/3864-1/",
        "https://usn.ubuntu.com/3906-2/",
        "https://www.debian.org/security/2018/dsa-4349",
        "https://www.exploit-db.com/exploits/45694/"
    ]
}