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condition on an affected device.\r\n\r\nThis vulnerability is due to an issue that occurs when TLS traffic is processed. An attacker could exploit this vulnerability by sending certain TLS traffic over IPv4 through an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition and impacting traffic to and through the affected device."}, {"lang": "es", "value": "Una vulnerabilidad en la funci\u00f3n de procesamiento de TLS del software Cisco Firepower Threat Defense (FTD) para la serie Cisco Firepower 2100 podr\u00eda permitir que un atacante remoto no autenticado provoque una condici\u00f3n de denegaci\u00f3n de servicio (DoS) en un dispositivo afectado. Esta vulnerabilidad se debe a un problema que ocurre cuando se procesa el tr\u00e1fico TLS. Un atacante podr\u00eda aprovechar esta vulnerabilidad enviando cierto tr\u00e1fico TLS a trav\u00e9s de IPv4 a trav\u00e9s de un dispositivo afectado. Una explotaci\u00f3n exitosa podr\u00eda permitir que el atacante haga que el dispositivo se recargue, lo que genera una condici\u00f3n de DoS y afecta el tr\u00e1fico hacia y a trav\u00e9s del dispositivo afectado."}], "id": "CVE-2024-20339", "lastModified": "2025-08-08T16:10:03.060", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.6, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 4.0, "source": "psirt@cisco.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2024-10-23T17:15:18.097", "references": [{"source": "psirt@cisco.com", "tags": ["Broken Link"], "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-xss-M446vbEO"}, {"source": "psirt@cisco.com", "tags": ["Vendor Advisory"], "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-tls-dos-QXYE5Ufy"}, {"source": "psirt@cisco.com", "tags": ["Vendor Advisory"], "url": "https://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-75300"}], "sourceIdentifier": "psirt@cisco.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "psirt@cisco.com", "type": "Secondary"}]}

{}