{"cve":{"cve_id":"CVE-2019-0817","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":0.0229,"epss_percentile":0.80968,"epss_as_of":"2026-06-23","description":"A spoofing vulnerability exists in Microsoft Exchange Server when Outlook Web Access (OWA) fails to properly handle web requests, aka 'Microsoft Exchange Spoofing Vulnerability'. This CVE ID is unique from CVE-2019-0858.","published_at":"2019-04-09T20:16:25Z","last_modified_at":null,"cvss_v3_score":null,"cvss_v3_vector":null,"cvss_v3_severity":null,"cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":null,"nvd_references":["https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0817"],"vuln_status":null,"trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-06-24T00:09:39.878444Z","updated_at":"2026-06-28T23:11:49.297342Z"},"effective_severity":null,"badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":null,"metrics":[]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"microsoft-exchange-server","product_name":"Microsoft Exchange Server","version_start":"2010 Service Pack 3","version_start_inclusive":true,"version_end":"2010 Service Pack 3","version_end_inclusive":true,"cpe23_uri":"cve5:microsoft:microsoft-exchange-server:2010 Service Pack 3:2010 Service Pack 3"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"microsoft-exchange-server","product_name":"Microsoft Exchange Server","version_start":"2019","version_start_inclusive":true,"version_end":"2019","version_end_inclusive":true,"cpe23_uri":"cve5:microsoft:microsoft-exchange-server:2019:2019"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"microsoft-exchange-server-2013","product_name":"Microsoft Exchange Server 2013","version_start":"Cumulative Update 22","version_start_inclusive":true,"version_end":"Cumulative Update 22","version_end_inclusive":true,"cpe23_uri":"cve5:microsoft:microsoft-exchange-server-2013:Cumulative Update 22:Cumulative Update 22"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"microsoft-exchange-server-2016","product_name":"Microsoft Exchange Server 2016","version_start":"Cumulative Update 11","version_start_inclusive":true,"version_end":"Cumulative Update 11","version_end_inclusive":true,"cpe23_uri":"cve5:microsoft:microsoft-exchange-server-2016:Cumulative Update 11:Cumulative Update 11"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"microsoft-exchange-server-2016","product_name":"Microsoft Exchange Server 2016","version_start":"Cumulative Update 12","version_start_inclusive":true,"version_end":"Cumulative Update 12","version_end_inclusive":true,"cpe23_uri":"cve5:microsoft:microsoft-exchange-server-2016:Cumulative Update 12:Cumulative Update 12"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"microsoft-exchange-server-2019","product_name":"Microsoft Exchange Server 2019","version_start":"Cumulative Update 1","version_start_inclusive":true,"version_end":"Cumulative Update 1","version_end_inclusive":true,"cpe23_uri":"cve5:microsoft:microsoft-exchange-server-2019:Cumulative Update 1:Cumulative Update 1"}],"exploit_refs":[],"news":[],"references":[{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0817","source_type":"VENDOR_ADVISORY","tags":["advisory"]}],"timeline":[{"type":"published","at":"2019-04-09T20:16:25Z","label":"CVE published","source":null}]}