{
    "id": "CVE-2021-21551",
    "published": "2021-05-04 16:15:07",
    "last_modified": "2026-06-17 03:35:45",
    "cvss_score": "8.8",
    "cvss_severity": "HIGH",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
    "cwe": "CWE-782",
    "description": "Dell dbutil_2_3.sys driver contains an insufficient access control vulnerability which may lead to escalation of privileges, denial of service, or information disclosure. Local authenticated user access is required.",
    "epss_score": "0.79249",
    "epss_percentile": "0.99589",
    "kev": 1,
    "kev_due": "2022-04-21",
    "has_exploit": 1,
    "updated_at": "2026-09-26 18:27:28",
    "priority": {
        "rank": 1,
        "label": "Patch first",
        "why": "On CISA KEV — known exploited in the wild, due 2022-04-21."
    },
    "products": [
        {
            "vendor": "dell",
            "product": "alienware_14"
        },
        {
            "vendor": "dell",
            "product": "alienware_17_51m_r2"
        },
        {
            "vendor": "dell",
            "product": "alienware_area_51"
        },
        {
            "vendor": "dell",
            "product": "alienware_asm100"
        },
        {
            "vendor": "dell",
            "product": "alienware_asm100r2"
        },
        {
            "vendor": "dell",
            "product": "alienware_m14xr2"
        },
        {
            "vendor": "dell",
            "product": "alienware_m15_r4"
        },
        {
            "vendor": "dell",
            "product": "alienware_m17xr4"
        },
        {
            "vendor": "dell",
            "product": "alienware_m18xr2"
        },
        {
            "vendor": "dell",
            "product": "canvas_27"
        },
        {
            "vendor": "dell",
            "product": "cheng_ming_3967"
        },
        {
            "vendor": "dell",
            "product": "chengming_3967"
        },
        {
            "vendor": "dell",
            "product": "chengming_3977"
        },
        {
            "vendor": "dell",
            "product": "chengming_3980"
        },
        {
            "vendor": "dell",
            "product": "chengming_3988"
        },
        {
            "vendor": "dell",
            "product": "chengming_3990"
        },
        {
            "vendor": "dell",
            "product": "chengming_3991"
        },
        {
            "vendor": "dell",
            "product": "dbutil"
        },
        {
            "vendor": "dell",
            "product": "dock_wd15"
        },
        {
            "vendor": "dell",
            "product": "dock_wd19"
        },
        {
            "vendor": "dell",
            "product": "embedded_box_pc_5000"
        },
        {
            "vendor": "dell",
            "product": "g15_5510"
        },
        {
            "vendor": "dell",
            "product": "g3_3500"
        },
        {
            "vendor": "dell",
            "product": "g3_3579"
        },
        {
            "vendor": "dell",
            "product": "g3_3779"
        },
        {
            "vendor": "dell",
            "product": "g5_5000"
        },
        {
            "vendor": "dell",
            "product": "g5_5090"
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        {
            "vendor": "dell",
            "product": "g5_5500"
        },
        {
            "vendor": "dell",
            "product": "g5_5587"
        },
        {
            "vendor": "dell",
            "product": "g5_5590"
        },
        {
            "vendor": "dell",
            "product": "g7_7500"
        },
        {
            "vendor": "dell",
            "product": "g7_7588"
        },
        {
            "vendor": "dell",
            "product": "g7_7590"
        },
        {
            "vendor": "dell",
            "product": "g7_7700"
        },
        {
            "vendor": "dell",
            "product": "g7_7790"
        },
        {
            "vendor": "dell",
            "product": "gaming_g3_3590"
        },
        {
            "vendor": "dell",
            "product": "inspiron_11-3162"
        },
        {
            "vendor": "dell",
            "product": "inspiron_1122"
        },
        {
            "vendor": "dell",
            "product": "inspiron_1210"
        },
        {
            "vendor": "dell",
            "product": "inspiron_13_5370"
        }
    ],
    "kev_detail": {
        "cve_id": "CVE-2021-21551",
        "date_added": "2022-03-31",
        "due_date": "2022-04-21",
        "vendor": "Dell",
        "product": "dbutil Driver",
        "name": "Dell dbutil Driver Insufficient Access Control Vulnerability",
        "ransomware": 0
    },
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "49893",
            "title": "DELL dbutil_2_3.sys 2.3 - Arbitrary Write to Local Privilege Escalation (LPE)",
            "date": "2021-05-21",
            "url": "https://www.exploit-db.com/exploits/49893"
        }
    ],
    "refs_list": [
        "http://packetstormsecurity.com/files/162604/Dell-DBUtil_2_3.sys-IOCTL-Memory-Read-Write.html",
        "http://packetstormsecurity.com/files/162739/DELL-dbutil_2_3.sys-2.3-Arbitrary-Write-Privilege-Escalation.html",
        "https://www.dell.com/support/kbdoc/en-us/000186019/dsa-2021-088-dell-client-platform-security-update-for-dell-driver-insufficient-access-control-vulnerability",
        "http://packetstormsecurity.com/files/162604/Dell-DBUtil_2_3.sys-IOCTL-Memory-Read-Write.html",
        "http://packetstormsecurity.com/files/162739/DELL-dbutil_2_3.sys-2.3-Arbitrary-Write-Privilege-Escalation.html",
        "https://www.dell.com/support/kbdoc/en-us/000186019/dsa-2021-088-dell-client-platform-security-update-for-dell-driver-insufficient-access-control-vulnerability",
        "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-21551"
    ]
}