{
    "id": "CVE-2016-7255",
    "published": "2016-11-10 07:00:09",
    "last_modified": "2026-09-10 04:17:32",
    "cvss_score": "7.8",
    "cvss_severity": "HIGH",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
    "cwe": null,
    "description": "The kernel-mode drivers in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, Windows 10 Gold, 1511, and 1607, and Windows Server 2016 allow local users to gain privileges via a crafted application, aka \"Win32k Elevation of Privilege Vulnerability.\"",
    "epss_score": "0.80968",
    "epss_percentile": "0.99621",
    "kev": 1,
    "kev_due": "2022-05-03",
    "has_exploit": 1,
    "updated_at": "2026-09-26 18:07:17",
    "priority": {
        "rank": 1,
        "label": "Patch first",
        "why": "On CISA KEV — known exploited in the wild, due 2022-05-03."
    },
    "products": [
        {
            "vendor": "microsoft",
            "product": "windows_10_1507"
        },
        {
            "vendor": "microsoft",
            "product": "windows_10_1511"
        },
        {
            "vendor": "microsoft",
            "product": "windows_10_1607"
        },
        {
            "vendor": "microsoft",
            "product": "windows_7"
        },
        {
            "vendor": "microsoft",
            "product": "windows_8.1"
        },
        {
            "vendor": "microsoft",
            "product": "windows_rt_8.1"
        },
        {
            "vendor": "microsoft",
            "product": "windows_server_2008"
        },
        {
            "vendor": "microsoft",
            "product": "windows_server_2012"
        },
        {
            "vendor": "microsoft",
            "product": "windows_server_2016"
        },
        {
            "vendor": "microsoft",
            "product": "windows_vista"
        }
    ],
    "kev_detail": {
        "cve_id": "CVE-2016-7255",
        "date_added": "2021-11-03",
        "due_date": "2022-05-03",
        "vendor": "Microsoft",
        "product": "Win32k",
        "name": "Microsoft Win32k Privilege Escalation Vulnerability",
        "ransomware": 1
    },
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "41015",
            "title": "Microsoft Windows Kernel - 'win32k.sys NtSetWindowLongPtr' Local Privilege Escalation (MS16-135) (2)",
            "date": "2017-01-08",
            "url": "https://www.exploit-db.com/exploits/41015"
        },
        {
            "source": "exploit-db",
            "ref_id": "40823",
            "title": "Microsoft Windows Kernel - 'win32k.sys NtSetWindowLongPtr' Local Privilege Escalation (MS16-135) (1)",
            "date": "2016-11-24",
            "url": "https://www.exploit-db.com/exploits/40823"
        },
        {
            "source": "exploit-db",
            "ref_id": "40745",
            "title": "Microsoft Windows Kernel - 'win32k' Denial of Service (MS16-135)",
            "date": "2016-11-09",
            "url": "https://www.exploit-db.com/exploits/40745"
        }
    ],
    "refs_list": [
        "http://blog.trendmicro.com/trendlabs-security-intelligence/one-bit-rule-system-analyzing-cve-2016-7255-exploit-wild/",
        "http://packetstormsecurity.com/files/140468/Microsoft-Windows-Kernel-win32k.sys-NtSetWindowLongPtr-Privilege-Escalation.html",
        "http://www.securityfocus.com/bid/94064",
        "http://www.securitytracker.com/id/1037251",
        "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-135",
        "https://github.com/mwrlabs/CVE-2016-7255",
        "https://securingtomorrow.mcafee.com/mcafee-labs/digging-windows-kernel-privilege-escalation-vulnerability-cve-2016-7255/",
        "https://security.googleblog.com/2016/10/disclosing-vulnerabilities-to-protect.html",
        "https://www.exploit-db.com/exploits/40745/",
        "https://www.exploit-db.com/exploits/40823/",
        "https://www.exploit-db.com/exploits/41015/",
        "http://blog.trendmicro.com/trendlabs-security-intelligence/one-bit-rule-system-analyzing-cve-2016-7255-exploit-wild/",
        "http://packetstormsecurity.com/files/140468/Microsoft-Windows-Kernel-win32k.sys-NtSetWindowLongPtr-Privilege-Escalation.html",
        "http://www.securityfocus.com/bid/94064",
        "http://www.securitytracker.com/id/1037251",
        "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-135",
        "https://github.com/mwrlabs/CVE-2016-7255",
        "https://securingtomorrow.mcafee.com/mcafee-labs/digging-windows-kernel-privilege-escalation-vulnerability-cve-2016-7255/",
        "https://security.googleblog.com/2016/10/disclosing-vulnerabilities-to-protect.html",
        "https://www.exploit-db.com/exploits/40745/",
        "https://www.exploit-db.com/exploits/40823/",
        "https://www.exploit-db.com/exploits/41015/",
        "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2016-7255"
    ]
}