Show plain JSON{"cisaActionDue": "2022-04-15", "cisaExploitAdd": "2022-03-25", "cisaRequiredAction": "Apply updates per vendor instructions.", "cisaVulnerabilityName": "Cisco IOS XR Border Gateway Protocol (BGP) Denial-of-Service Vulnerability", "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:cisco:ios_xr:3.4:*:*:*:*:*:*:*", "matchCriteriaId": "75538529-611A-43B5-AC4D-089C4E2E2ACC", "vulnerable": true}, {"criteria": "cpe:2.3:o:cisco:ios_xr:3.4.0:*:*:*:*:*:*:*", "matchCriteriaId": "00DA2581-F618-4F2A-AB65-DA23DF51AF89", "vulnerable": true}, {"criteria": "cpe:2.3:o:cisco:ios_xr:3.4.1:*:*:*:*:*:*:*", "matchCriteriaId": "81797938-F953-42BE-B287-AA48B9860AF6", "vulnerable": true}, {"criteria": "cpe:2.3:o:cisco:ios_xr:3.4.2:*:*:*:*:*:*:*", "matchCriteriaId": "92AED038-C73F-4499-B064-F01D80DB0C64", "vulnerable": true}, {"criteria": "cpe:2.3:o:cisco:ios_xr:3.4.3:*:*:*:*:*:*:*", "matchCriteriaId": "CB7A249B-AF69-47D0-B6DE-968B4CD0BA42", "vulnerable": true}, {"criteria": "cpe:2.3:o:cisco:ios_xr:3.5:*:*:*:*:*:*:*", "matchCriteriaId": "F992D03D-1DB8-44C1-B59D-1C09A32A2C91", "vulnerable": true}, {"criteria": "cpe:2.3:o:cisco:ios_xr:3.5.2:*:*:*:*:*:*:*", "matchCriteriaId": "C5F15240-6323-4766-801A-D887F3EA8A6B", "vulnerable": true}, {"criteria": "cpe:2.3:o:cisco:ios_xr:3.5.3:*:*:*:*:*:*:*", "matchCriteriaId": "D99DC1CF-78DC-4E59-98BA-DD84702D6467", "vulnerable": true}, {"criteria": "cpe:2.3:o:cisco:ios_xr:3.5.4:*:*:*:*:*:*:*", "matchCriteriaId": "0B9FA754-E3D2-4D80-8F4B-41139973D9FC", "vulnerable": true}, {"criteria": "cpe:2.3:o:cisco:ios_xr:3.6.0:*:*:*:*:*:*:*", "matchCriteriaId": "F497A05C-2FC5-427D-8036-2476ACA956C0", "vulnerable": true}, {"criteria": "cpe:2.3:o:cisco:ios_xr:3.6.1:*:*:*:*:*:*:*", "matchCriteriaId": "2252E7B0-9112-4E9E-8CF4-4EC53C630CFD", "vulnerable": true}, {"criteria": "cpe:2.3:o:cisco:ios_xr:3.6.2:*:*:*:*:*:*:*", "matchCriteriaId": "1131A524-AA7A-4C94-9FFE-54546EA7D2CC", "vulnerable": true}, {"criteria": "cpe:2.3:o:cisco:ios_xr:3.6.3:*:*:*:*:*:*:*", "matchCriteriaId": "46D1A634-D39C-4305-8915-4AA289FB68EE", "vulnerable": true}, {"criteria": "cpe:2.3:o:cisco:ios_xr:3.7.0:*:*:*:*:*:*:*", "matchCriteriaId": "21BAB799-3150-46D8-AEA3-9FCC73203221", "vulnerable": true}, {"criteria": "cpe:2.3:o:cisco:ios_xr:3.7.1:*:*:*:*:*:*:*", "matchCriteriaId": "99042285-94AC-4C57-8EAA-EE63C678A94A", "vulnerable": true}, {"criteria": "cpe:2.3:o:cisco:ios_xr:3.7.2:*:*:*:*:*:*:*", "matchCriteriaId": "2E752AA9-CC1C-44B6-A916-A3C76A57F05C", "vulnerable": true}, {"criteria": "cpe:2.3:o:cisco:ios_xr:3.7.3:*:*:*:*:*:*:*", "matchCriteriaId": "71CBE50E-9BD3-4F74-8C7A-BE4905090EE2", "vulnerable": true}, {"criteria": "cpe:2.3:o:cisco:ios_xr:3.8.0:*:*:*:*:*:*:*", "matchCriteriaId": "96F48419-AF66-4B50-ACBF-9E38287A64FA", "vulnerable": true}, {"criteria": "cpe:2.3:o:cisco:ios_xr:3.8.1:*:*:*:*:*:*:*", "matchCriteriaId": "EBB71A24-AA6C-4BAD-BD37-5C191751C9DF", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Cisco IOS XR 3.4.0 through 3.8.1 allows remote attackers to cause a denial of service (session reset) via a BGP UPDATE message with an invalid attribute, as demonstrated in the wild on 17 August 2009."}, {"lang": "es", "value": "Cisco IOS XR desde la v3.4.0 hasta la v3.8.1 permite a atacantes remotos producir una denegaci\u00f3n de servicio (reset de sesi\u00f3n) a trav\u00e9s de el mensaje BGP UPDATE con un atributo invalido, como se demostr\u00f3 el 17 de Agosto de 2009."}], "id": "CVE-2009-2055", "lastModified": "2025-04-09T00:30:58.490", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 4.3, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}]}, "published": "2009-08-19T17:30:01.047", "references": [{"source": "psirt@cisco.com", "tags": ["Mailing List"], "url": "http://mailman.nanog.org/pipermail/nanog/2009-August/012719.html"}, {"source": "psirt@cisco.com", "tags": ["Broken Link"], "url": "http://securitytracker.com/id?1022739"}, {"source": "psirt@cisco.com", "tags": ["Patch", "Vendor Advisory"], "url": "http://www.cisco.com/en/US/products/products_security_advisory09186a0080af150f.shtml"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List"], "url": "http://mailman.nanog.org/pipermail/nanog/2009-August/012719.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Broken Link"], "url": "http://securitytracker.com/id?1022739"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Vendor Advisory"], "url": "http://www.cisco.com/en/US/products/products_security_advisory09186a0080af150f.shtml"}], "sourceIdentifier": "psirt@cisco.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}], "source": "nvd@nist.gov", "type": "Primary"}]}