{
    "id": "CVE-2022-47939",
    "published": "2022-12-23 16:15:12",
    "last_modified": "2026-06-17 05:14:29",
    "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-416",
    "description": "An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.19 before 5.19.2. fs/ksmbd/smb2pdu.c has a use-after-free and OOPS for SMB2_TREE_DISCONNECT.",
    "epss_score": "0.46428",
    "epss_percentile": "0.98785",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-10-02 18:17:36",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "EPSS 46.4% — above the 10% action threshold."
    },
    "products": [
        {
            "vendor": "linux",
            "product": "linux_kernel"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "http://www.openwall.com/lists/oss-security/2022/12/23/10",
        "https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.2",
        "https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cf6531d98190fa2cf92a6d8bbc8af0a4740a223c",
        "https://github.com/torvalds/linux/commit/cf6531d98190fa2cf92a6d8bbc8af0a4740a223c",
        "https://www.secpod.com/blog/zero-day-server-message-block-smb-server-in-linux-kernel-5-15-has-a-critical-vulnerability-patch-ksmbd-immediately/",
        "https://www.zerodayinitiative.com/advisories/ZDI-22-1690/",
        "http://www.openwall.com/lists/oss-security/2022/12/23/10",
        "https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.2",
        "https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cf6531d98190fa2cf92a6d8bbc8af0a4740a223c",
        "https://github.com/torvalds/linux/commit/cf6531d98190fa2cf92a6d8bbc8af0a4740a223c",
        "https://www.secpod.com/blog/zero-day-server-message-block-smb-server-in-linux-kernel-5-15-has-a-critical-vulnerability-patch-ksmbd-immediately/",
        "https://www.zerodayinitiative.com/advisories/ZDI-22-1690/"
    ]
}