CVE-2018-0230

{
  "id": "CVE-2018-0230",
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              "exploitation": "none"
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              "automatable": "yes"
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              "technicalImpact": "partial"
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          "version": "2.0.3",
          "timestamp": "2024-11-29T14:44:33.543235Z"
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          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:C",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "NONE"
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        "impactScore": 6.9,
        "baseSeverity": "HIGH",
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        "exploitabilityScore": 10,
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          "integrityImpact": "NONE",
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        "impactScore": 4,
        "exploitabilityScore": 3.9
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  "affected": [
    {
      "source": "psirt@cisco.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "Cisco Firepower 2100 Series Security Appliances",
          "versions": [
            {
              "status": "affected",
              "version": "Cisco Firepower 2100 Series Security Appliances"
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  "published": "2018-04-19T20:29:00.473",
  "references": [
    {
      "url": "http://www.securityfocus.com/bid/103931",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "psirt@cisco.com"
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    {
      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-fp2100",
      "tags": [
        "Vendor Advisory"
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      "source": "psirt@cisco.com"
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      "url": "http://www.securityfocus.com/bid/103931",
      "tags": [
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        "VDB Entry"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "psirt@cisco.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-400"
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  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability in the internal packet-processing functionality of Cisco Firepower Threat Defense (FTD) Software for Cisco Firepower 2100 Series Security Appliances could allow an unauthenticated, remote attacker to cause an affected device to stop processing traffic, resulting in a denial of service (DoS) condition. The vulnerability is due to the affected software improperly validating IP Version 4 (IPv4) and IP Version 6 (IPv6) packets after the software reassembles the packets (following IP Fragmentation). An attacker could exploit this vulnerability by sending a series of malicious, fragmented IPv4 or IPv6 packets to an affected device. A successful exploit could allow the attacker to cause Snort processes on the affected device to hang at 100% CPU utilization, which could cause the device to stop processing traffic and result in a DoS condition until the device is reloaded manually. This vulnerability affects Cisco Firepower Threat Defense (FTD) Software Releases 6.2.1 and 6.2.2, if the software is running on a Cisco Firepower 2100 Series Security Appliance. Cisco Bug IDs: CSCvf91098."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad en la funcionalidad interna de procesamiento de paquetes de Cisco Firepower Threat Defense (FTD) Software para Cisco Firepower 2100 Series Security Appliances podrá permitir que un atacante remoto no autenticado provoque que un dispositivo afectado deje de procesar tráfico. Esto resulta en una denegación de servicio (DoS). La vulnerabilidad se debe a que el software afectado no valida correctamente los paquetes IPv4 (IP Version 4) e IPv6 (IP Version 6) una vez el software haya reensamblado los paquetes (tras una fragmentación de IP). Un atacante podría explotar esta vulnerabilidad enviando una serie de paquetes IPv4 o IPv6 maliciosos fragmentados a un dispositivo afectado. Su explotación con éxito podría permitir que el atacante haga que los procesos Snort en el dispositivo afectado se bloqueen en un nivel de uso de la CPU del 100%. Esto provocaría que el dispositivo deje de procesar tráfico y resulte en una condición de denegación de servicio (DoS) hasta que el dispositivo se recargue manualmente. Esta vulnerabilidad afecta a Cisco Firepower Threat Defense (FTD) Software Releases 6.2.1 y 6.2.2, si el software se ejecuta en Cisco Firepower 2100 Series Security Appliance. Cisco Bug IDs: CSCvf91098."
    }
  ],
  "lastModified": "2026-08-11T19:33:44.513",
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  "sourceIdentifier": "psirt@cisco.com"
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