{
    "id": "CVE-2009-3726",
    "published": "2009-11-09 19:30:00",
    "last_modified": "2026-06-16 23:12:14",
    "cvss_score": "7.8",
    "cvss_severity": "HIGH",
    "cvss_version": "2.0",
    "cvss_vector": "AV:N/AC:L/Au:N/C:N/I:N/A:C",
    "cwe": "CWE-399",
    "description": "The nfs4_proc_lock function in fs/nfs/nfs4proc.c in the NFSv4 client in the Linux kernel before 2.6.31-rc4 allows remote NFS servers to cause a denial of service (NULL pointer dereference and panic) by sending a certain response containing incorrect file attributes, which trigger attempted use of an open file that lacks NFSv4 state.",
    "epss_score": "0.12000",
    "epss_percentile": "0.96017",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-10-03 18:17:09",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "linux",
            "product": "linux_kernel"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "10202",
            "title": "Linux Kernel < 2.6.31-rc4 - 'nfs4_proc_lock()' Denial of Service",
            "date": "2009-10-15",
            "url": "https://www.exploit-db.com/exploits/10202"
        }
    ],
    "refs_list": [
        "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=d953126a28f97ec965d23c69fd5795854c048f30",
        "http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00007.html",
        "http://lists.opensuse.org/opensuse-security-announce/2009-12/msg00002.html",
        "http://lists.opensuse.org/opensuse-security-announce/2009-12/msg00005.html",
        "http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00005.html",
        "http://lists.vmware.com/pipermail/security-announce/2010/000082.html",
        "http://secunia.com/advisories/37909",
        "http://secunia.com/advisories/38794",
        "http://secunia.com/advisories/38834",
        "http://secunia.com/advisories/40218",
        "http://www.debian.org/security/2010/dsa-2005",
        "http://www.kernel.org/pub/linux/kernel/v2.6/testing/v2.6.31/ChangeLog-2.6.31-rc4",
        "http://www.mandriva.com/security/advisories?name=MDVSA-2009:329",
        "http://www.mandriva.com/security/advisories?name=MDVSA-2011:051",
        "http://www.openwall.com/lists/oss-security/2009/11/05/1",
        "http://www.openwall.com/lists/oss-security/2009/11/05/4",
        "http://www.redhat.com/support/errata/RHSA-2009-1670.html",
        "http://www.redhat.com/support/errata/RHSA-2010-0474.html",
        "http://www.securityfocus.com/bid/36936",
        "http://www.spinics.net/linux/lists/linux-nfs/msg03357.html",
        "http://www.ubuntu.com/usn/usn-864-1",
        "http://www.vupen.com/english/advisories/2010/0528",
        "https://bugzilla.redhat.com/show_bug.cgi?id=529227",
        "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6636",
        "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9734"
    ]
}