{
    "id": "CVE-2011-2005",
    "published": "2011-10-12 02:52:43",
    "last_modified": "2026-06-16 23:30:35",
    "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": "afd.sys in the Ancillary Function Driver in Microsoft Windows XP SP2 and SP3 and Server 2003 SP2 does not properly validate user-mode input passed to kernel mode, which allows local users to gain privileges via a crafted application, aka \"Ancillary Function Driver Elevation of Privilege Vulnerability.\"",
    "epss_score": "0.31534",
    "epss_percentile": "0.98231",
    "kev": 1,
    "kev_due": "2022-04-18",
    "has_exploit": 1,
    "updated_at": "2026-09-26 18:18:12",
    "priority": {
        "rank": 1,
        "label": "Patch first",
        "why": "On CISA KEV — known exploited in the wild, due 2022-04-18."
    },
    "products": [
        {
            "vendor": "microsoft",
            "product": "windows_server_2003"
        },
        {
            "vendor": "microsoft",
            "product": "windows_xp"
        }
    ],
    "kev_detail": {
        "cve_id": "CVE-2011-2005",
        "date_added": "2022-03-28",
        "due_date": "2022-04-18",
        "vendor": "Microsoft",
        "product": "Ancillary Function Driver (afd.sys)",
        "name": "Microsoft Ancillary Function Driver (afd.sys) Improper Input Validation Vulnerability",
        "ransomware": 0
    },
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "21844",
            "title": "Microsoft Windows - 'AfdJoinLeaf' Local Privilege Escalation (MS11-080) (Metasploit)",
            "date": "2012-10-10",
            "url": "https://www.exploit-db.com/exploits/21844"
        },
        {
            "source": "exploit-db",
            "ref_id": "18176",
            "title": "Microsoft Windows XP/2003 - 'afd.sys' Local Privilege Escalation (MS11-080)",
            "date": "2011-11-30",
            "url": "https://www.exploit-db.com/exploits/18176"
        }
    ],
    "refs_list": [
        "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-080",
        "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A13114",
        "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-080",
        "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A13114",
        "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2011-2005"
    ]
}