CVE-2018-8159

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{"affected": [{"affectedData": [{"product": "Microsoft Exchange Server", "vendor": "Microsoft", "versions": [{"status": "affected", "version": "2013 Cumulative Update 19"}, {"status": "affected", "version": "2013 Cumulative Update 20"}, {"status": "affected", "version": "2016 Cumulative Update 8"}, {"status": "affected", "version": "2016 Cumulative Update 9"}]}], "source": "secure@microsoft.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_19:*:*:*:*:*:*", "matchCriteriaId": "20E4796E-3E9B-473E-A7E3-498540185FBF", "vulnerable": true}, {"criteria": "cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_20:*:*:*:*:*:*", "matchCriteriaId": "8076F450-BC75-420B-99F7-05D3CCA50E74", "vulnerable": true}, {"criteria": "cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_8:*:*:*:*:*:*", "matchCriteriaId": "075E907F-AF2F-4C31-86C7-51972BE412A1", "vulnerable": true}, {"criteria": "cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_9:*:*:*:*:*:*", "matchCriteriaId": "69AF19DC-3D65-49A8-A85F-511085CDF27B", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "An elevation of privilege vulnerability exists when Microsoft Exchange Outlook Web Access (OWA) fails to properly handle web requests, aka \"Microsoft Exchange Elevation of Privilege Vulnerability.\" This affects Microsoft Exchange Server."}, {"lang": "es", "value": "Existe una vulnerabilidad de elevaci\u00f3n de privilegios cuando Microsoft Exchange Outlook Web Access (OWA) fracasa a la hora de gestionar correctamente peticiones web. Esto tambi\u00e9n se conoce como \"Microsoft Exchange Elevation of Privilege Vulnerability\". Esto afecta a Microsoft Exchange Server."}], "id": "CVE-2018-8159", "lastModified": "2026-06-17T02:04:22.280", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 5.8, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 4.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N", "version": "3.0"}, "exploitabilityScore": 2.8, "impactScore": 2.5, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2018-05-09T19:29:02.497", "references": [{"source": "secure@microsoft.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/104056"}, {"source": "secure@microsoft.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securitytracker.com/id/1040850"}, {"source": "secure@microsoft.com", "tags": ["Patch", "Vendor Advisory"], "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8159"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/104056"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securitytracker.com/id/1040850"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Vendor Advisory"], "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8159"}], "sourceIdentifier": "secure@microsoft.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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