« Volver al listado

CVE-2026-20014

Estado: AnalizadaAlta (7.7)—

A vulnerability in the IKEv2 feature of Cisco Secure Firewall ASA Software and Cisco Secure FTD Software could allow an authenticated, remote attacker with valid VPN user credentials to cause a DoS condition on an affected device that may also impact the availability of services to devices elsewhere in the network.

This vulnerability is due to the improper processing of IKEv2 packets. An attacker could exploit this vulnerability by sending crafted, authenticated IKEv2 packets to an affected device. A successful exploit could allow the attacker to exhaust memory, causing the device to reload.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Atacante autenticado remoto (PR:L, AV:N) en IKEv2/VPN. Agotamiento de memoria y recarga del dispositivo es DoS contra servicio remoto (T1499.004).

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Tecnologías afectadas (2)

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-20014",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-20014",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-03-04T21:38:31.628005Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "psirt@cisco.com",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 7.7,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 4,
        "exploitabilityScore": 3.1
      }
    ]
  },
  "affected": [
    {
      "source": "psirt@cisco.com",
      "affectedData": [
        {
          "vendor": "Cisco",
          "product": "Cisco Secure Firewall Adaptive Security Appliance (ASA) Software",
          "versions": [
            {
              "status": "affected",
              "version": "9.18.1"
            },
            {
              "status": "affected",
              "version": "9.18.1.3"
            },
            {
              "status": "affected",
              "version": "9.18.2"
            },
            {
              "status": "affected",
              "version": "9.18.2.5"
            },
            {
              "status": "affected",
              "version": "9.18.2.7"
            },
            {
              "status": "affected",
              "version": "9.18.2.8"
            },
            {
              "status": "affected",
              "version": "9.18.3"
            },
            {
              "status": "affected",
              "version": "9.18.3.39"
            },
            {
              "status": "affected",
              "version": "9.18.3.46"
            },
            {
              "status": "affected",
              "version": "9.18.3.53"
            },
            {
              "status": "affected",
              "version": "9.18.3.55"
            },
            {
              "status": "affected",
              "version": "9.18.3.56"
            },
            {
              "status": "affected",
              "version": "9.18.4"
            },
            {
              "status": "affected",
              "version": "9.18.4.5"
            },
            {
              "status": "affected",
              "version": "9.18.4.8"
            },
            {
              "status": "affected",
              "version": "9.18.4.22"
            },
            {
              "status": "affected",
              "version": "9.18.4.24"
            },
            {
              "status": "affected",
              "version": "9.18.4.29"
            },
            {
              "status": "affected",
              "version": "9.18.4.34"
            },
            {
              "status": "affected",
              "version": "9.18.4.40"
            },
            {
              "status": "affected",
              "version": "9.18.4.47"
            },
            {
              "status": "affected",
              "version": "9.18.4.50"
            },
            {
              "status": "affected",
              "version": "9.18.4.52"
            },
            {
              "status": "affected",
              "version": "9.18.4.53"
            },
            {
              "status": "affected",
              "version": "9.18.4.57"
            },
            {
              "status": "affected",
              "version": "9.18.4.66"
            },
            {
              "status": "affected",
              "version": "9.18.4.67"
            },
            {
              "status": "affected",
              "version": "9.18.4.68"
            },
            {
              "status": "affected",
              "version": "9.19.1"
            },
            {
              "status": "affected",
              "version": "9.19.1.5"
            },
            {
              "status": "affected",
              "version": "9.19.1.9"
            },
            {
              "status": "affected",
              "version": "9.19.1.12"
            },
            {
              "status": "affected",
              "version": "9.19.1.18"
            },
            {
              "status": "affected",
              "version": "9.19.1.22"
            },
            {
              "status": "affected",
              "version": "9.19.1.24"
            },
            {
              "status": "affected",
              "version": "9.19.1.27"
            },
            {
              "status": "affected",
              "version": "9.19.1.28"
            },
            {
              "status": "affected",
              "version": "9.19.1.31"
            },
            {
              "status": "affected",
              "version": "9.19.1.37"
            },
            {
              "status": "affected",
              "version": "9.19.1.38"
            },
            {
              "status": "affected",
              "version": "9.19.1.42"
            },
            {
              "status": "affected",
              "version": "9.20.1"
            },
            {
              "status": "affected",
              "version": "9.20.1.5"
            },
            {
              "status": "affected",
              "version": "9.20.2"
            },
            {
              "status": "affected",
              "version": "9.20.2.10"
            },
            {
              "status": "affected",
              "version": "9.20.2.21"
            },
            {
              "status": "affected",
              "version": "9.20.2.22"
            },
            {
              "status": "affected",
              "version": "9.20.3"
            },
            {
              "status": "affected",
              "version": "9.20.3.4"
            },
            {
              "status": "affected",
              "version": "9.20.3.7"
            },
            {
              "status": "affected",
              "version": "9.20.3.9"
            },
            {
              "status": "affected",
              "version": "9.20.3.10"
            },
            {
              "status": "affected",
              "version": "9.20.3.13"
            },
            {
              "status": "affected",
              "version": "9.20.3.16"
            },
            {
              "status": "affected",
              "version": "9.20.3.20"
            },
            {
              "status": "affected",
              "version": "9.20.4"
            },
            {
              "status": "affected",
              "version": "9.20.4.7"
            },
            {
              "status": "affected",
              "version": "9.22.1.1"
            },
            {
              "status": "affected",
              "version": "9.22.1.3"
            },
            {
              "status": "affected",
              "version": "9.22.1.2"
            },
            {
              "status": "affected",
              "version": "9.22.1.6"
            },
            {
              "status": "affected",
              "version": "9.22.2"
            },
            {
              "status": "affected",
              "version": "9.22.2.4"
            },
            {
              "status": "affected",
              "version": "9.22.2.9"
            },
            {
              "status": "affected",
              "version": "9.23.1"
            },
            {
              "status": "affected",
              "version": "9.23.1.3"
            },
            {
              "status": "affected",
              "version": "9.23.1.7"
            },
            {
              "status": "affected",
              "version": "9.23.1.13"
            }
          ]
        },
        {
          "vendor": "Cisco",
          "product": "Cisco Secure Firewall Threat Defense (FTD) Software",
          "versions": [
            {
              "status": "affected",
              "version": "7.2.0"
            },
            {
              "status": "affected",
              "version": "7.2.0.1"
            },
            {
              "status": "affected",
              "version": "7.2.1"
            },
            {
              "status": "affected",
              "version": "7.2.2"
            },
            {
              "status": "affected",
              "version": "7.2.3"
            },
            {
              "status": "affected",
              "version": "7.2.4"
            },
            {
              "status": "affected",
              "version": "7.2.4.1"
            },
            {
              "status": "affected",
              "version": "7.2.5"
            },
            {
              "status": "affected",
              "version": "7.2.5.1"
            },
            {
              "status": "affected",
              "version": "7.2.6"
            },
            {
              "status": "affected",
              "version": "7.2.7"
            },
            {
              "status": "affected",
              "version": "7.2.5.2"
            },
            {
              "status": "affected",
              "version": "7.2.8"
            },
            {
              "status": "affected",
              "version": "7.2.8.1"
            },
            {
              "status": "affected",
              "version": "7.2.9"
            },
            {
              "status": "affected",
              "version": "7.2.10"
            },
            {
              "status": "affected",
              "version": "7.2.10.2"
            },
            {
              "status": "affected",
              "version": "7.3.0"
            },
            {
              "status": "affected",
              "version": "7.3.1"
            },
            {
              "status": "affected",
              "version": "7.3.1.1"
            },
            {
              "status": "affected",
              "version": "7.3.1.2"
            },
            {
              "status": "affected",
              "version": "7.4.0"
            },
            {
              "status": "affected",
              "version": "7.4.1"
            },
            {
              "status": "affected",
              "version": "7.4.1.1"
            },
            {
              "status": "affected",
              "version": "7.4.2"
            },
            {
              "status": "affected",
              "version": "7.4.2.1"
            },
            {
              "status": "affected",
              "version": "7.4.2.2"
            },
            {
              "status": "affected",
              "version": "7.4.2.3"
            },
            {
              "status": "affected",
              "version": "7.4.2.4"
            },
            {
              "status": "affected",
              "version": "7.6.0"
            },
            {
              "status": "affected",
              "version": "7.6.1"
            },
            {
              "status": "affected",
              "version": "7.6.2"
            },
            {
              "status": "affected",
              "version": "7.6.2.1"
            },
            {
              "status": "affected",
              "version": "7.7.0"
            },
            {
              "status": "affected",
              "version": "7.7.10"
            },
            {
              "status": "affected",
              "version": "7.7.10.1"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-03-04T18:16:15.557",
  "references": [
    {
      "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-ikev2-dos-eBueGdEG",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "psirt@cisco.com"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "psirt@cisco.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-401"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability in the IKEv2 feature of Cisco Secure Firewall ASA Software and Cisco Secure FTD Software could allow an authenticated, remote attacker with valid VPN user credentials to cause a DoS condition on an affected device that may also impact the availability of services to devices elsewhere in the network.\r\n\r This vulnerability is due to the improper processing of IKEv2 packets. An attacker could exploit this vulnerability by sending crafted, authenticated IKEv2 packets to an affected device. A successful exploit could allow the attacker to exhaust memory, causing the device to reload."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad en la característica IKEv2 de Cisco Secure Firewall ASA Software y Cisco Secure FTD Software podría permitir a un atacante remoto autenticado con credenciales de usuario VPN válidas causar una condición de DoS en un dispositivo afectado que también podría impactar la disponibilidad de los servicios a dispositivos en otras partes de la red. Esta vulnerabilidad se debe al procesamiento incorrecto de paquetes IKEv2. Un atacante podría explotar esta vulnerabilidad enviando paquetes IKEv2 manipulados y autenticados a un dispositivo afectado. Un exploit exitoso podría permitir al atacante agotar la memoria, provocando que el dispositivo se recargue."
    }
  ],
  "lastModified": "2026-08-11T19:40:47.230",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "74292810-417D-42CC-9123-55166145E91D",
              "versionEndExcluding": "9.16.4.85",
              "versionStartIncluding": "9.12.1"
            },
            {
              "criteria": "cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "7EFC1809-7619-43ED-80FD-0FC28C876879",
              "versionEndExcluding": "9.18.4.66",
              "versionStartIncluding": "9.17.1"
            },
            {
              "criteria": "cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "4988A136-196A-448B-A416-992803647AB2",
              "versionEndExcluding": "9.20.4",
              "versionStartIncluding": "9.19.1"
            },
            {
              "criteria": "cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "FED09C17-AE2F-41DB-AB9F-537E7D22CC22",
              "versionEndExcluding": "9.22.2.9",
              "versionStartIncluding": "9.22.1.1"
            },
            {
              "criteria": "cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "852A0BF4-FF9A-47EE-8E3A-E31C545783F6",
              "versionEndExcluding": "9.23.1.13",
              "versionStartIncluding": "9.23.1"
            }
          ],
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:cisco:secure_firewall_threat_defense:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "1D9356BF-153F-46DE-A84C-88C743291468",
              "versionEndExcluding": "7.0.9",
              "versionStartIncluding": "6.4.0"
            },
            {
              "criteria": "cpe:2.3:a:cisco:secure_firewall_threat_defense:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F2E5D82E-E596-48CD-AFBB-3FB39F6684A1",
              "versionEndExcluding": "7.2.11",
              "versionStartIncluding": "7.1.0"
            },
            {
              "criteria": "cpe:2.3:a:cisco:secure_firewall_threat_defense:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "B3D0EFB8-E018-4732-B99B-9374C1EF602E",
              "versionEndExcluding": "7.4.3",
              "versionStartIncluding": "7.3.0"
            },
            {
              "criteria": "cpe:2.3:a:cisco:secure_firewall_threat_defense:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "7C131685-D69C-4460-BFFC-06DA5AD43038",
              "versionEndExcluding": "7.6.4",
              "versionStartIncluding": "7.6.0"
            },
            {
              "criteria": "cpe:2.3:a:cisco:secure_firewall_threat_defense:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "491E1C03-FE39-4A29-82B6-85B85494E57D",
              "versionEndExcluding": "7.7.11",
              "versionStartIncluding": "7.7.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "psirt@cisco.com"
}