{
  "id": "CVE-2026-21643",
  "url": "https://spydr.io/cve/CVE-2026-21643",
  "published": "2026-02-06T09:15:49.330Z",
  "modified": "2026-06-17T10:18:51.890Z",
  "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": "fortinet.com",
  "epss": 0.93871,
  "epss_percentile": 0.99843,
  "exploited": true,
  "kev": {
    "added": "2026-04-13",
    "due": "2026-04-16",
    "action": "Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.",
    "ransomware": "Unknown",
    "name": "Fortinet FortiClient EMS SQL Injection Vulnerability",
    "notes": "https://fortiguard.fortinet.com/psirt/FG-IR-25-1142 ; https://nvd.nist.gov/vuln/detail/CVE-2026-21643"
  },
  "ssvc_exploitation": "active",
  "vendors": [
    "Fortinet"
  ],
  "products": [
    "Fortinet FortiClientEMS"
  ],
  "cwes": [
    "CWE-89"
  ],
  "description": "An improper neutralization of special elements used in an sql command ('sql injection') vulnerability in Fortinet FortiClientEMS 7.4.4 may allow an unauthenticated attacker to execute unauthorized code or commands via specifically crafted HTTP requests.",
  "status": "Analyzed",
  "score_type": "Secondary",
  "scores": {
    "cvss_v40": null,
    "cvss_v31": 9.8,
    "cvss_v30": null
  },
  "references": [
    {
      "url": "https://fortiguard.fortinet.com/psirt/FG-IR-25-1142",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://github.com/0xBlackash/CVE-2026-21643/blob/main/cve-2026-21643.py",
      "tags": [
        "Exploit"
      ]
    },
    {
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-21643",
      "tags": [
        "US Government Resource"
      ]
    }
  ],
  "nvd_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-21643",
  "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."
    }
  ]
}