{
    "id": "CVE-2011-1985",
    "published": "2011-10-12 02:52:43",
    "last_modified": "2026-06-16 23:30:32",
    "cvss_score": "7.1",
    "cvss_severity": "HIGH",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
    "cwe": "CWE-476",
    "description": "win32k.sys in the kernel-mode drivers in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 does not properly validate user-mode input, which allows local users to gain privileges or cause a denial of service (NULL pointer dereference and system crash) via a crafted application, aka \"Win32k Null Pointer De-reference Vulnerability.\"",
    "epss_score": "0.02270",
    "epss_percentile": "0.82559",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-10-10 18:17:09",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "microsoft",
            "product": "windows_2003_server"
        },
        {
            "vendor": "microsoft",
            "product": "windows_7"
        },
        {
            "vendor": "microsoft",
            "product": "windows_server_2003"
        },
        {
            "vendor": "microsoft",
            "product": "windows_server_2008"
        },
        {
            "vendor": "microsoft",
            "product": "windows_vista"
        },
        {
            "vendor": "microsoft",
            "product": "windows_xp"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "18024",
            "title": "Microsoft Win32k - Null Pointer De-reference (PoC) (MS11-077)",
            "date": "2011-10-23",
            "url": "https://www.exploit-db.com/exploits/18024"
        }
    ],
    "refs_list": [
        "http://www.securitytracker.com/id?1026165",
        "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-077",
        "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12935",
        "http://www.securitytracker.com/id?1026165",
        "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-077",
        "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12935"
    ]
}