{
  "id": "CVE-2021-36260",
  "url": "https://spydr.io/cve/CVE-2021-36260",
  "published": "2021-09-22T13:15:07.690Z",
  "modified": "2026-06-17T03:58:34.080Z",
  "score": 9.8,
  "severity": "critical",
  "cvss_version": "3.1",
  "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "score_source": "NVD",
  "epss": 0.99869,
  "epss_percentile": 0.99962,
  "exploited": true,
  "kev": {
    "added": "2022-01-10",
    "due": "2022-01-24",
    "action": "Apply updates per vendor instructions.",
    "ransomware": "Unknown",
    "name": "Hikvision Improper Input Validation",
    "notes": "https://nvd.nist.gov/vuln/detail/CVE-2021-36260"
  },
  "ssvc_exploitation": "active",
  "vendors": [
    "hikvision"
  ],
  "products": [
    "hikvision ds-2cd2026g2-iu/sl firmware",
    "hikvision ds-2cd2046g2-iu/sl firmware",
    "hikvision ds-2cd2066g2-i(u) firmware",
    "hikvision ds-2cd2066g2-iu/sl firmware",
    "hikvision ds-2cd2086g2-i(u) firmware",
    "hikvision ds-2cd2086g2-iu/sl firmware",
    "hikvision ds-2cd2166g2-i(su) firmware",
    "hikvision ds-2cd2186g2-i(su) firmware",
    "hikvision ds-2cd2326g2-isu/sl firmware",
    "hikvision ds-2cd2346g2-isu/sl firmware",
    "hikvision ds-2cd2366g2-i(u) firmware",
    "hikvision ds-2cd2366g2-isu/sl firmware",
    "hikvision ds-2cd2386g2-i(u) firmware",
    "hikvision ds-2cd2386g2-isu/sl firmware",
    "hikvision ds-2cd2426g2-i firmware",
    "hikvision ds-2cd2446g2-i firmware",
    "hikvision ds-2cd2526g2-i(s) firmware",
    "hikvision ds-2cd2546g2-i(s) firmware",
    "hikvision ds-2cd2566g2-i(s) firmware",
    "hikvision ds-2cd2586g2-i(s) firmware"
  ],
  "cwes": [
    "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.",
  "status": "Analyzed",
  "score_type": "Primary",
  "scores": {
    "cvss_v40": null,
    "cvss_v31": 9.8,
    "cvss_v30": null
  },
  "references": [
    {
      "url": "http://packetstormsecurity.com/files/164603/Hikvision-Web-Server-Build-210702-Command-Injection.html",
      "tags": [
        "Exploit",
        "Third Party Advisory",
        "VDB Entry"
      ]
    },
    {
      "url": "http://packetstormsecurity.com/files/166167/Hikvision-IP-Camera-Unauthenticated-Command-Injection.html",
      "tags": [
        "Exploit",
        "Third Party Advisory",
        "VDB Entry"
      ]
    },
    {
      "url": "https://therecord.media/experts-warn-of-widespread-exploitation-involving-hikvision-cameras/",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://www.cyfirma.com/wp-content/uploads/2022/08/HikvisionSurveillanceCamerasVulnerabilities.pdf",
      "tags": [
        "Broken Link",
        "Exploit",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://www.hikvision.com/en/support/cybersecurity/security-advisory/security-notification-command-injection-vulnerability-in-some-hikvision-products/",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-36260",
      "tags": [
        "US Government Resource"
      ]
    }
  ],
  "nvd_url": "https://nvd.nist.gov/vuln/detail/CVE-2021-36260",
  "covered_in": [],
  "attribution": [
    {
      "source": "NVD",
      "url": "https://nvd.nist.gov",
      "notice": "This product uses data from the NVD API but is not endorsed or certified by the NVD."
    },
    {
      "source": "CISA KEV",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "notice": "Known exploited vulnerabilities from the CISA KEV catalog."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss",
      "notice": "Exploit prediction scores from FIRST EPSS."
    }
  ]
}