{
    "id": "CVE-2021-36260",
    "published": "2021-09-22 13:15:07",
    "last_modified": "2026-06-17 03:58:34",
    "cvss_score": "9.8",
    "cvss_severity": "CRITICAL",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
    "cwe": "CWE-78",
    "description": "A command injection vulnerability in the web server of some Hikvision product. Due to the insufficient input validation, attacker can exploit the vulnerability to launch a command injection attack by sending some messages with malicious commands.",
    "epss_score": "0.99869",
    "epss_percentile": "0.99962",
    "kev": 1,
    "kev_due": "2022-01-24",
    "has_exploit": 1,
    "updated_at": "2026-09-26 18:28:08",
    "priority": {
        "rank": 1,
        "label": "Patch first",
        "why": "On CISA KEV — known exploited in the wild, due 2022-01-24."
    },
    "products": [
        {
            "vendor": "hikvision",
            "product": "ds-2cd2026g2-iu\\/sl"
        },
        {
            "vendor": "hikvision",
            "product": "ds-2cd2026g2-iu\\/sl_firmware"
        },
        {
            "vendor": "hikvision",
            "product": "ds-2cd2046g2-iu\\/sl"
        },
        {
            "vendor": "hikvision",
            "product": "ds-2cd2046g2-iu\\/sl_firmware"
        },
        {
            "vendor": "hikvision",
            "product": "ds-2cd2066g2-i\\(u\\)"
        },
        {
            "vendor": "hikvision",
            "product": "ds-2cd2066g2-i\\(u\\)_firmware"
        },
        {
            "vendor": "hikvision",
            "product": "ds-2cd2066g2-iu\\/sl"
        },
        {
            "vendor": "hikvision",
            "product": "ds-2cd2066g2-iu\\/sl_firmware"
        },
        {
            "vendor": "hikvision",
            "product": "ds-2cd2086g2-i\\(u\\)"
        },
        {
            "vendor": "hikvision",
            "product": "ds-2cd2086g2-i\\(u\\)_firmware"
        },
        {
            "vendor": "hikvision",
            "product": "ds-2cd2086g2-iu\\/sl"
        },
        {
            "vendor": "hikvision",
            "product": "ds-2cd2086g2-iu\\/sl_firmware"
        },
        {
            "vendor": "hikvision",
            "product": "ds-2cd2166g2-i\\(su\\)"
        },
        {
            "vendor": "hikvision",
            "product": "ds-2cd2166g2-i\\(su\\)_firmware"
        },
        {
            "vendor": "hikvision",
            "product": "ds-2cd2186g2-i\\(su\\)"
        },
        {
            "vendor": "hikvision",
            "product": "ds-2cd2186g2-i\\(su\\)_firmware"
        },
        {
            "vendor": "hikvision",
            "product": "ds-2cd2186g2-isu"
        },
        {
            "vendor": "hikvision",
            "product": "ds-2cd2186g2-isu_firmware"
        },
        {
            "vendor": "hikvision",
            "product": "ds-2cd2326g2-isu\\/sl"
        },
        {
            "vendor": "hikvision",
            "product": "ds-2cd2326g2-isu\\/sl_firmware"
        },
        {
            "vendor": "hikvision",
            "product": "ds-2cd2346g2-isu\\/sl"
        },
        {
            "vendor": "hikvision",
            "product": "ds-2cd2346g2-isu\\/sl_firmware"
        },
        {
            "vendor": "hikvision",
            "product": "ds-2cd2366g2-i\\(u\\)"
        },
        {
            "vendor": "hikvision",
            "product": "ds-2cd2366g2-i\\(u\\)_firmware"
        },
        {
            "vendor": "hikvision",
            "product": "ds-2cd2366g2-isu\\/sl"
        },
        {
            "vendor": "hikvision",
            "product": "ds-2cd2366g2-isu\\/sl_firmware"
        },
        {
            "vendor": "hikvision",
            "product": "ds-2cd2386g2-i\\(u\\)"
        },
        {
            "vendor": "hikvision",
            "product": "ds-2cd2386g2-i\\(u\\)_firmware"
        },
        {
            "vendor": "hikvision",
            "product": "ds-2cd2386g2-isu\\/sl"
        },
        {
            "vendor": "hikvision",
            "product": "ds-2cd2386g2-isu\\/sl_firmware"
        },
        {
            "vendor": "hikvision",
            "product": "ds-2cd2426g2-i"
        },
        {
            "vendor": "hikvision",
            "product": "ds-2cd2426g2-i_firmware"
        },
        {
            "vendor": "hikvision",
            "product": "ds-2cd2446g2-i"
        },
        {
            "vendor": "hikvision",
            "product": "ds-2cd2446g2-i_firmware"
        },
        {
            "vendor": "hikvision",
            "product": "ds-2cd2526g2-i\\(s\\)"
        },
        {
            "vendor": "hikvision",
            "product": "ds-2cd2526g2-i\\(s\\)_firmware"
        },
        {
            "vendor": "hikvision",
            "product": "ds-2cd2526g2-is"
        },
        {
            "vendor": "hikvision",
            "product": "ds-2cd2526g2-is_firmware"
        },
        {
            "vendor": "hikvision",
            "product": "ds-2cd2546g2-i\\(s\\)"
        },
        {
            "vendor": "hikvision",
            "product": "ds-2cd2546g2-i\\(s\\)_firmware"
        }
    ],
    "kev_detail": {
        "cve_id": "CVE-2021-36260",
        "date_added": "2022-01-10",
        "due_date": "2022-01-24",
        "vendor": "Hikvision",
        "product": "Security cameras web server",
        "name": "Hikvision Improper Input Validation",
        "ransomware": 0
    },
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "50441",
            "title": "Hikvision Web Server Build 210702 - Command Injection",
            "date": "2021-10-25",
            "url": "https://www.exploit-db.com/exploits/50441"
        }
    ],
    "refs_list": [
        "http://packetstormsecurity.com/files/164603/Hikvision-Web-Server-Build-210702-Command-Injection.html",
        "http://packetstormsecurity.com/files/166167/Hikvision-IP-Camera-Unauthenticated-Command-Injection.html",
        "https://therecord.media/experts-warn-of-widespread-exploitation-involving-hikvision-cameras/",
        "https://www.cyfirma.com/wp-content/uploads/2022/08/HikvisionSurveillanceCamerasVulnerabilities.pdf",
        "https://www.hikvision.com/en/support/cybersecurity/security-advisory/security-notification-command-injection-vulnerability-in-some-hikvision-products/",
        "http://packetstormsecurity.com/files/164603/Hikvision-Web-Server-Build-210702-Command-Injection.html",
        "http://packetstormsecurity.com/files/166167/Hikvision-IP-Camera-Unauthenticated-Command-Injection.html",
        "https://therecord.media/experts-warn-of-widespread-exploitation-involving-hikvision-cameras/",
        "https://www.cyfirma.com/wp-content/uploads/2022/08/HikvisionSurveillanceCamerasVulnerabilities.pdf",
        "https://www.hikvision.com/en/support/cybersecurity/security-advisory/security-notification-command-injection-vulnerability-in-some-hikvision-products/",
        "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-36260"
    ]
}