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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:cisco:nx-os:-:*:*:*:*:*:*:*", "matchCriteriaId": "DA35D4AA-24B3-428E-84ED-804EF941E9A9", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The regex engine in the BGP implementation in Cisco NX-OS, when a complex regular expression is configured for inbound routes, allows remote attackers to cause a denial of service (device reload) via a crafted AS path set, aka Bug ID CSCuf49554."}, {"lang": "es", "value": "El motor de expresiones regulares en la implementaci\u00f3n BGP de Cisco NX-OS, cuando una expresi\u00f3n regular compleja es configurada para rutas de entrada, permite a un atacante remoto causar una denegaci\u00f3n de servicio (recarga de dispositivo) a trav\u00e9s de una ruta AS manipulada, tambien conocida como Bug ID CSCuf49554"}], "id": "CVE-2013-1121", "lastModified": "2026-04-29T01:13:23.040", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "HIGH", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 5.4, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:H/Au:N/C:N/I:N/A:C", "version": "2.0"}, "exploitabilityScore": 4.9, "impactScore": 6.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}]}, "published": "2013-09-19T18:55:05.540", "references": [{"source": "psirt@cisco.com", "tags": ["Vendor Advisory"], "url": "http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-1121"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-1121"}], "sourceIdentifier": "psirt@cisco.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-399"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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