{
    "id": "CVE-2019-11356",
    "published": "2019-06-03 20:29:00",
    "last_modified": "2026-06-17 02:12:45",
    "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": "The CalDAV feature in httpd in Cyrus IMAP 2.5.x through 2.5.12 and 3.0.x through 3.0.9 allows remote attackers to execute arbitrary code via a crafted HTTP PUT operation for an event with a long iCalendar property name.",
    "epss_score": "0.07622",
    "epss_percentile": "0.94392",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-10-05 18:17:19",
    "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": "cyrus",
            "product": "imap"
        },
        {
            "vendor": "debian",
            "product": "debian_linux"
        },
        {
            "vendor": "fedoraproject",
            "product": "fedora"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_eus"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_server_aus"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_server_tus"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "https://access.redhat.com/errata/RHSA-2019:1771",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IGO43JS7IFDNITHXOOHOP6JHRKRDIYY6/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PICSZDC3UGEUZ27VXGGM6OFI67D3KKLZ/",
        "https://seclists.org/bugtraq/2019/Jun/9",
        "https://usn.ubuntu.com/4566-1/",
        "https://www.cyrusimap.org/imap/download/release-notes/2.5/index.html",
        "https://www.cyrusimap.org/imap/download/release-notes/2.5/x/2.5.13.html",
        "https://www.cyrusimap.org/imap/download/release-notes/3.0/index.html",
        "https://www.cyrusimap.org/imap/download/release-notes/3.0/x/3.0.10.html",
        "https://www.debian.org/security/2019/dsa-4458",
        "https://access.redhat.com/errata/RHSA-2019:1771",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IGO43JS7IFDNITHXOOHOP6JHRKRDIYY6/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PICSZDC3UGEUZ27VXGGM6OFI67D3KKLZ/",
        "https://seclists.org/bugtraq/2019/Jun/9",
        "https://usn.ubuntu.com/4566-1/",
        "https://www.cyrusimap.org/imap/download/release-notes/2.5/index.html",
        "https://www.cyrusimap.org/imap/download/release-notes/2.5/x/2.5.13.html",
        "https://www.cyrusimap.org/imap/download/release-notes/3.0/index.html",
        "https://www.cyrusimap.org/imap/download/release-notes/3.0/x/3.0.10.html",
        "https://www.debian.org/security/2019/dsa-4458"
    ]
}