{
  "crds_version": "0.1",
  "kind": "base",
  "id": "crds:cve-2024-21887",
  "revision": 1,
  "title": "Ivanti Connect Secure — Command Injection in the Web Components",
  "summary": "Ivanti Connect Secure and Policy Secure let an authenticated administrator smuggle system commands through their web components. Chained with the authentication bypass CVE-2023-46805, it becomes unauthenticated RCE on the appliance.",
  "source_type": "cve",
  "severity": "critical",
  "cvss": {
    "score": 9.1,
    "vector": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
    "version": "3.1"
  },
  "epss": 0.99999,
  "exploitation": {
    "known_exploited": true,
    "exploit_available": true,
    "attack_complexity": "low",
    "kev_added": "2024-01-10",
    "prerequisites": "Administrator authentication on an affected appliance (9.x, 22.x) — in practice supplied by chaining the authentication bypass CVE-2023-46805."
  },
  "remediation": {
    "patch_available": true
  },
  "mitre_attack": [
    "T1190",
    "T1059"
  ],
  "kill_chain": "initial_access",
  "recommended_action": "Patch Connect Secure and Policy Secure now, or take them out of service; treat any internet-facing appliance as compromised and hunt before returning it to production.",
  "confidence": "high",
  "provenance": [
    {
      "fields": [
        "title",
        "summary",
        "cvss",
        "severity",
        "exploitation.attack_complexity",
        "exploitation.exploit_available",
        "remediation.patch_available",
        "references"
      ],
      "source": "https://nvd.nist.gov/vuln/detail/CVE-2024-21887",
      "retrieved_at": "2026-08-07T07:53:55.549Z",
      "confidence": "high",
      "extractor": "claude-code"
    },
    {
      "fields": [
        "exploitation.known_exploited",
        "exploitation.prerequisites",
        "recommended_action"
      ],
      "source": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "retrieved_at": "2026-08-07T07:53:55.549Z",
      "confidence": "high",
      "extractor": "claude-code"
    },
    {
      "fields": [
        "epss"
      ],
      "source": "https://api.first.org/data/v1/epss?cve=CVE-2024-21887",
      "retrieved_at": "2026-08-07T07:53:55.549Z",
      "confidence": "high",
      "extractor": "claude-code"
    }
  ],
  "references": [
    {
      "type": "cve",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-21887",
      "label": "NVD record"
    },
    {
      "type": "vendor_advisory",
      "url": "https://forums.ivanti.com/s/article/CVE-2023-46805-Authentication-Bypass-CVE-2024-21887-Command-Injection-for-Ivanti-Connect-Secure-and-Ivanti-Policy-Secure-Gateways?language=en_US",
      "label": "Ivanti advisory for the bypass and injection pair"
    },
    {
      "type": "exploit",
      "url": "http://packetstormsecurity.com/files/176668/Ivanti-Connect-Secure-Unauthenticated-Remote-Code-Execution.html",
      "label": "Public unauthenticated remote code execution exploit"
    },
    {
      "type": "cisa",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-21887",
      "label": "CISA Known Exploited Vulnerabilities entry"
    }
  ],
  "published_at": "2024-01-12T17:15:10.017Z",
  "issued_at": "2026-08-07T07:53:55.549Z",
  "tags": [
    "ivanti",
    "connect-secure",
    "policy-secure",
    "vpn",
    "command-injection",
    "kev",
    "ransomware"
  ]
}