{"api_version":"1","generated_at":"2026-07-23T11:44:41+00:00","cve":"CVE-1999-1466","urls":{"html":"https://cve.report/CVE-1999-1466","api":"https://cve.report/api/cve/CVE-1999-1466.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-1999-1466","nvd":"https://nvd.nist.gov/vuln/detail/CVE-1999-1466"},"summary":{"title":"CVE-1999-1466","description":"Vulnerability in Cisco routers versions 8.2 through 9.1 allows remote attackers to bypass access control lists when extended IP access lists are used on certain interfaces, the IP route cache is enabled, and the access list uses the \"established\" keyword.","state":"PUBLISHED","assigner":"mitre","published_at":"1992-12-10 05:00:00","updated_at":"2025-04-03 01:03:51"},"problem_types":["NVD-CWE-Other","n/a"],"metrics":[{"version":"2.0","source":"nvd@nist.gov","type":"Primary","score":"7.5","severity":"","vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","data":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:P/I:P/A:P","baseScore":7.5,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","availabilityImpact":"PARTIAL"}}],"references":[{"url":"http://www.securityfocus.com/bid/53","name":"http://www.securityfocus.com/bid/53","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch","Vendor Advisory"],"title":"SecurityFocus","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://www.cert.org/advisories/CA-1992-20.html","name":"http://www.cert.org/advisories/CA-1992-20.html","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch","Third Party Advisory","US Government Resource"],"title":"CERT Advisory CA-1992-20 Cisco Access List Vulnerability","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-1999-1466","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-1999-1466","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"n/a","product":"n/a","version":"affected n/a","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"1999","cve_id":"1466","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"cisco","cpe5":"ios","cpe6":"8.2","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"1999","cve_id":"1466","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"cisco","cpe5":"ios","cpe6":"8.3","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"1999","cve_id":"1466","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"cisco","cpe5":"ios","cpe6":"9.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"1999","cve_id":"1466","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"cisco","cpe5":"ios","cpe6":"9.1","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"providerMetadata":{"dateUpdated":"2024-08-01T17:18:07.269Z","orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE"},"references":[{"name":"CA-1992-20","tags":["third-party-advisory","x_refsource_CERT","x_transferred"],"url":"http://www.cert.org/advisories/CA-1992-20.html"},{"name":"53","tags":["vdb-entry","x_refsource_BID","x_transferred"],"url":"http://www.securityfocus.com/bid/53"}],"title":"CVE Program Container"}],"cna":{"affected":[{"product":"n/a","vendor":"n/a","versions":[{"status":"affected","version":"n/a"}]}],"datePublic":"1992-12-10T00:00:00.000Z","descriptions":[{"lang":"en","value":"Vulnerability in Cisco routers versions 8.2 through 9.1 allows remote attackers to bypass access control lists when extended IP access lists are used on certain interfaces, the IP route cache is enabled, and the access list uses the \"established\" keyword."}],"problemTypes":[{"descriptions":[{"description":"n/a","lang":"en","type":"text"}]}],"providerMetadata":{"dateUpdated":"2003-05-08T09:00:00.000Z","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","shortName":"mitre"},"references":[{"name":"CA-1992-20","tags":["third-party-advisory","x_refsource_CERT"],"url":"http://www.cert.org/advisories/CA-1992-20.html"},{"name":"53","tags":["vdb-entry","x_refsource_BID"],"url":"http://www.securityfocus.com/bid/53"}],"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-1999-1466","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"n/a","version":{"version_data":[{"version_value":"n/a"}]}}]},"vendor_name":"n/a"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"Vulnerability in Cisco routers versions 8.2 through 9.1 allows remote attackers to bypass access control lists when extended IP access lists are used on certain interfaces, the IP route cache is enabled, and the access list uses the \"established\" keyword."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"name":"CA-1992-20","refsource":"CERT","url":"http://www.cert.org/advisories/CA-1992-20.html"},{"name":"53","refsource":"BID","url":"http://www.securityfocus.com/bid/53"}]}}}},"cveMetadata":{"assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","assignerShortName":"mitre","cveId":"CVE-1999-1466","datePublished":"2001-09-12T04:00:00.000Z","dateReserved":"2001-08-31T00:00:00.000Z","dateUpdated":"2024-08-01T17:18:07.269Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.1"},"nvd":{"publishedDate":"1992-12-10 05:00:00","lastModifiedDate":"2025-04-03 01:03:51","problem_types":["NVD-CWE-Other","n/a"],"metrics":{"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:P/I:P/A:P","baseScore":7.5,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","availabilityImpact":"PARTIAL"},"baseSeverity":"HIGH","exploitabilityScore":10,"impactScore":6.4,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios:8.2:*:*:*:*:*:*:*","matchCriteriaId":"E72B3032-154D-45C2-8380-CCB28E4F2E8C"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios:8.3:*:*:*:*:*:*:*","matchCriteriaId":"87395248-5E9C-4257-9CC7-2E2805B69F83"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios:9.0:*:*:*:*:*:*:*","matchCriteriaId":"A476BFB0-E587-41A6-B691-2609E0146C2B"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios:9.1:*:*:*:*:*:*:*","matchCriteriaId":"2E9A00D5-A594-4C64-B982-10CB4C554F51"}]}]}]},"legacy_mitre":{"record":{"CveYear":"1999","CveId":"1466","Ordinal":"1","Title":"CVE-1999-1466","CVE":"CVE-1999-1466","Year":"1999"},"notes":[{"CveYear":"1999","CveId":"1466","Ordinal":"1","NoteData":"Vulnerability in Cisco routers versions 8.2 through 9.1 allows remote attackers to bypass access control lists when extended IP access lists are used on certain interfaces, the IP route cache is enabled, and the access list uses the \"established\" keyword.","Type":"Description","Title":"CVE-1999-1466"},{"CveYear":"1999","CveId":"1466","Ordinal":"2","NoteData":"2001-09-12","Type":"Other","Title":"Published"},{"CveYear":"1999","CveId":"1466","Ordinal":"3","NoteData":"2003-05-08","Type":"Other","Title":"Modified"}]}}}