{
  "id": "CVE-2021-44515",
  "url": "https://spydr.io/cve/CVE-2021-44515",
  "published": "2021-12-12T05:15:07.997Z",
  "modified": "2026-06-17T04:12:29.943Z",
  "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": 0.99871,
  "epss_percentile": 0.99963,
  "exploited": true,
  "kev": {
    "added": "2021-12-10",
    "due": "2021-12-24",
    "action": "Apply updates per vendor instructions.",
    "ransomware": "Unknown",
    "name": "Zoho Desktop Central Authentication Bypass Vulnerability",
    "notes": "https://nvd.nist.gov/vuln/detail/CVE-2021-44515"
  },
  "ssvc_exploitation": "active",
  "vendors": [
    "zohocorp"
  ],
  "products": [
    "zohocorp manageengine desktop central"
  ],
  "cwes": [],
  "description": "Zoho ManageEngine Desktop Central is vulnerable to authentication bypass, leading to remote code execution on the server, as exploited in the wild in December 2021. For Enterprise builds 10.1.2127.17 and earlier, upgrade to 10.1.2127.18. For Enterprise builds 10.1.2128.0 through 10.1.2137.2, upgrade to 10.1.2137.3. For MSP builds 10.1.2127.17 and earlier, upgrade to 10.1.2127.18. For MSP builds 10.1.2128.0 through 10.1.2137.2, upgrade to 10.1.2137.3.",
  "status": "Analyzed",
  "score_type": "Primary",
  "scores": {
    "cvss_v40": null,
    "cvss_v31": 9.8,
    "cvss_v30": null
  },
  "references": [
    {
      "url": "https://pitstop.manageengine.com/portal/en/community/topic/an-authentication-bypass-vulnerability-identified-and-fixed-in-desktop-central-and-desktop-central-msp",
      "tags": [
        "Issue Tracking",
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://www.cisa.gov/uscert/ncas/current-activity/2021/12/10/cisa-adds-thirteen-known-exploited-vulnerabilities-catalog",
      "tags": [
        "Broken Link",
        "Third Party Advisory",
        "US Government Resource"
      ]
    },
    {
      "url": "https://www.manageengine.com/products/desktop-central/cve-2021-44515-authentication-bypass-filter-configuration.html",
      "tags": [
        "Exploit",
        "Patch",
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-44515",
      "tags": [
        "US Government Resource"
      ]
    }
  ],
  "nvd_url": "https://nvd.nist.gov/vuln/detail/CVE-2021-44515",
  "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."
    }
  ]
}