{
    "id": "CVE-2018-5159",
    "published": "2018-06-11 21:29:15",
    "last_modified": "2026-06-17 01:59:44",
    "cvss_score": "9.8",
    "cvss_severity": "CRITICAL",
    "cvss_version": "3.0",
    "cvss_vector": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
    "cwe": "CWE-190",
    "description": "An integer overflow can occur in the Skia library due to 32-bit integer use in an array without integer overflow checks, resulting in possible out-of-bounds writes. This could lead to a potentially exploitable crash triggerable by web content. This vulnerability affects Thunderbird < 52.8, Thunderbird ESR < 52.8, Firefox < 60, and Firefox ESR < 52.8.",
    "epss_score": "0.21036",
    "epss_percentile": "0.97501",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-09-27 18:17:21",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "canonical",
            "product": "ubuntu_linux"
        },
        {
            "vendor": "debian",
            "product": "debian_linux"
        },
        {
            "vendor": "mozilla",
            "product": "firefox"
        },
        {
            "vendor": "mozilla",
            "product": "thunderbird"
        },
        {
            "vendor": "mozilla",
            "product": "thunderbird_esr"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_desktop"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_server"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_server_aus"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_server_eus"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_server_tus"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_workstation"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "44759",
            "title": "Skia and Firefox - Integer Overflow in SkTDArray Leading to Out-of-Bounds Write",
            "date": "2018-05-25",
            "url": "https://www.exploit-db.com/exploits/44759"
        }
    ],
    "refs_list": [
        "http://www.securityfocus.com/bid/104136",
        "http://www.securitytracker.com/id/1040896",
        "https://access.redhat.com/errata/RHSA-2018:1414",
        "https://access.redhat.com/errata/RHSA-2018:1415",
        "https://access.redhat.com/errata/RHSA-2018:1725",
        "https://access.redhat.com/errata/RHSA-2018:1726",
        "https://bugzilla.mozilla.org/show_bug.cgi?id=1441941",
        "https://lists.debian.org/debian-lts-announce/2018/05/msg00007.html",
        "https://lists.debian.org/debian-lts-announce/2018/05/msg00013.html",
        "https://security.gentoo.org/glsa/201810-01",
        "https://security.gentoo.org/glsa/201811-13",
        "https://usn.ubuntu.com/3645-1/",
        "https://usn.ubuntu.com/3660-1/",
        "https://www.debian.org/security/2018/dsa-4199",
        "https://www.debian.org/security/2018/dsa-4209",
        "https://www.exploit-db.com/exploits/44759/",
        "https://www.mozilla.org/security/advisories/mfsa2018-11/",
        "https://www.mozilla.org/security/advisories/mfsa2018-12/",
        "https://www.mozilla.org/security/advisories/mfsa2018-13/",
        "http://www.securityfocus.com/bid/104136",
        "http://www.securitytracker.com/id/1040896",
        "https://access.redhat.com/errata/RHSA-2018:1414",
        "https://access.redhat.com/errata/RHSA-2018:1415",
        "https://access.redhat.com/errata/RHSA-2018:1725",
        "https://access.redhat.com/errata/RHSA-2018:1726"
    ]
}