CVE-2008-3803

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "psirt@cisco.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:cisco:ios:12.0s:*:*:*:*:*:*:*", "matchCriteriaId": "2C398460-3F38-4AA7-A4B1-FD8A01588DB5", "vulnerable": true}, {"criteria": "cpe:2.3:o:cisco:ios:12.0sx:*:*:*:*:*:*:*", "matchCriteriaId": "5C11A2BE-19E7-4148-B3CC-B4956B07273E", "vulnerable": true}, {"criteria": "cpe:2.3:o:cisco:ios:12.0sz:*:*:*:*:*:*:*", "matchCriteriaId": "B6943D9D-4A73-4EB2-B5C5-B7132AFFBE2B", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A \"logic error\" in Cisco IOS 12.0 through 12.4, when a Multiprotocol Label Switching (MPLS) VPN with extended communities is configured, sometimes causes a corrupted route target (RT) to be used, which allows remote attackers to read traffic from other VPNs in opportunistic circumstances."}, {"lang": "es", "value": "Un \"error l\u00f3gico\" en Cisco IOS v12.0 a la v12.4, cuando est\u00e1 configurado un Multiprotocol Label Switching (MPLS) VPN \"extendida a comunidades\" (extended communities), en ocasiones provoca que sea usado un destino de ruta corrupta, lo que permite a atacantes remotos leer el tr\u00e1fico de red desde otras VPN's en determinadas circunstancias."}], "id": "CVE-2008-3803", "lastModified": "2026-06-16T22:56:34.290", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "HIGH", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.1, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:H/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 4.9, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}]}, "published": "2008-09-26T16:21:44.160", "references": [{"source": "psirt@cisco.com", "tags": ["Third Party Advisory"], "url": "http://secunia.com/advisories/31990"}, {"source": "psirt@cisco.com", "tags": ["Vendor Advisory"], "url": "http://www.cisco.com/en/US/products/products_security_advisory09186a0080a014a9.shtml"}, {"source": "psirt@cisco.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/31366"}, {"source": "psirt@cisco.com", "tags": ["Broken Link", "Third Party Advisory", "VDB Entry"], "url": "http://www.securitytracker.com/id?1020940"}, {"source": "psirt@cisco.com", "tags": ["Permissions Required"], "url": "http://www.vupen.com/english/advisories/2008/2670"}, {"source": "psirt@cisco.com", "tags": ["Third Party Advisory"], "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5919"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "http://secunia.com/advisories/31990"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "http://www.cisco.com/en/US/products/products_security_advisory09186a0080a014a9.shtml"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/31366"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Broken Link", "Third Party Advisory", "VDB Entry"], "url": "http://www.securitytracker.com/id?1020940"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Permissions Required"], "url": "http://www.vupen.com/english/advisories/2008/2670"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5919"}], "sourceIdentifier": "psirt@cisco.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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