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The vulnerability is due to incorrect processing of certain IKEv2 packets. An attacker could exploit this vulnerability by sending crafted IKEv2 packets to an affected device to be processed. A successful exploit could cause an affected device to continuously consume memory and eventually reload, resulting in a DoS condition. Cisco Bug IDs: CSCvf22394."}, {"lang": "es", "value": "Una vulnerabilidad en el m\u00f3dulo Internet Key Exchange Version 2 (IKEv2) de Cisco IOS Software y Cisco IOS XE Software podr\u00eda permitir que un atacante remoto no autenticado provoque una fuga de memoria o que reinicie un dispositivo afectado para provocar una denegaci\u00f3n de servicio (DoS). Esta vulnerabilidad se debe al procesamiento incorrecto de determinados paquetes IKEv2. Un atacante podr\u00eda explotar esta vulnerabilidad enviando paquetes IKEv2 manipulados al dispositivo afectado para que los procese. Un exploit con \u00e9xito podr\u00eda dar lugar a que el dispositivo afectado consumiese memoria continuamente y, finalmente, se reiniciase, provocando una denegaci\u00f3n de servicio (DoS). Cisco Bug IDs: CSCvf22394."}], "id": "CVE-2018-0158", "lastModified": "2025-10-22T00:16:14.050", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 7.8, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:C", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 6.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "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": "nvd@nist.gov", "type": "Primary"}]}, "published": "2018-03-28T22:29:00.547", "references": [{"source": "psirt@cisco.com", "tags": ["Broken Link", "Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/103566"}, {"source": "psirt@cisco.com", "tags": ["Broken Link", "Third Party Advisory", "VDB Entry"], "url": "http://www.securitytracker.com/id/1040595"}, {"source": "psirt@cisco.com", "tags": ["Third Party Advisory", "US Government Resource", "VDB Entry"], "url": "https://ics-cert.us-cert.gov/advisories/ICSA-18-107-03"}, {"source": "psirt@cisco.com", "tags": ["Third Party Advisory", "US Government Resource", "VDB Entry"], "url": "https://ics-cert.us-cert.gov/advisories/ICSA-18-107-04"}, {"source": "psirt@cisco.com", "tags": ["Vendor Advisory"], "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-ike"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Broken Link", "Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/103566"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Broken Link", "Third Party Advisory", "VDB Entry"], "url": "http://www.securitytracker.com/id/1040595"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "US Government Resource", "VDB Entry"], "url": "https://ics-cert.us-cert.gov/advisories/ICSA-18-107-03"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "US Government Resource", "VDB Entry"], "url": "https://ics-cert.us-cert.gov/advisories/ICSA-18-107-04"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-ike"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-0158"}], "sourceIdentifier": "psirt@cisco.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}], "source": "psirt@cisco.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-401"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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