{
  "id": "CVE-2021-37415",
  "url": "https://spydr.io/cve/CVE-2021-37415",
  "published": "2021-09-01T06:15:06.530Z",
  "modified": "2026-06-17T04:00:29.513Z",
  "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": 0.99825,
  "epss_percentile": 0.99959,
  "exploited": true,
  "kev": {
    "added": "2021-12-01",
    "due": "2021-12-15",
    "action": "Apply updates per vendor instructions.",
    "ransomware": "Unknown",
    "name": "Zoho ManageEngine ServiceDesk Authentication Bypass Vulnerability",
    "notes": "https://nvd.nist.gov/vuln/detail/CVE-2021-37415"
  },
  "ssvc_exploitation": "active",
  "vendors": [
    "zohocorp"
  ],
  "products": [
    "zohocorp manageengine servicedesk plus"
  ],
  "cwes": [
    "CWE-306"
  ],
  "description": "Zoho ManageEngine ServiceDesk Plus before 11302 is vulnerable to authentication bypass that allows a few REST-API URLs without authentication.",
  "status": "Analyzed",
  "score_type": "Primary",
  "scores": {
    "cvss_v40": null,
    "cvss_v31": 9.8,
    "cvss_v30": null
  },
  "references": [
    {
      "url": "https://www.manageengine.com/",
      "tags": [
        "Product"
      ]
    },
    {
      "url": "https://www.manageengine.com/products/service-desk/on-premises/readme.html#11302",
      "tags": [
        "Release Notes"
      ]
    },
    {
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-37415",
      "tags": [
        "US Government Resource"
      ]
    }
  ],
  "nvd_url": "https://nvd.nist.gov/vuln/detail/CVE-2021-37415",
  "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."
    }
  ]
}