{"cve":{"cve_id":"CVE-2019-1064","is_kev":true,"kev_date_added":"2022-03-15","kev_vendor_project":"Microsoft","kev_product":"Windows","kev_vulnerability_name":"Microsoft Windows AppX Deployment Service (AppXSVC) Privilege Escalation Vulnerability","kev_short_description":"A privilege escalation vulnerability exists when Windows AppXSVC improperly handles hard links. An attacker who successfully exploited this vulnerability could run processes in an elevated context.","kev_required_action":"Apply updates per vendor instructions.","kev_due_date":"2022-04-05","kev_known_ransomware":true,"kev_notes":"https://nvd.nist.gov/vuln/detail/CVE-2019-1064","kev_cwes":["CWE-59"],"epss_score":0.06886,"epss_percentile":0.93232,"epss_as_of":"2026-06-23","description":"An elevation of privilege vulnerability exists when Windows AppX Deployment Service (AppXSVC) improperly handles hard links. An attacker who successfully exploited this vulnerability could run processes in an elevated context. An attacker could then install programs; view, change or delete data.\nTo exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability and take control of an affected system.\nThe security update addresses the vulnerability by correcting how Windows AppX Deployment Service handles hard links.","published_at":"2019-06-12T13:49:41Z","last_modified_at":null,"cvss_v3_score":7.8,"cvss_v3_vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C","cvss_v3_severity":"HIGH","cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":"active","ssvc_automatable":false,"ssvc_technical_impact":"total","cwes":["CWE-59"],"nvd_references":["https://msrc.microsoft.com/update-guide/vulnerability/CVE-2019-1064"],"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":"2026-06-24T00:09:31.350578Z","updated_at":"2026-06-28T23:11:54.475116Z"},"effective_severity":"HIGH","badges":["kev","ransomware"],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"L","value_label":"Local"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"PR","name":"Privileges Required","value":"L","value_label":"Low"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"metric":"S","name":"Scope","value":"U","value_label":"Unchanged"},{"metric":"C","name":"Confidentiality","value":"H","value_label":"High"},{"metric":"I","name":"Integrity","value":"H","value_label":"High"},{"metric":"A","name":"Availability","value":"H","value_label":"High"},{"metric":"E","name":"E","value":"P","value_label":"Physical"},{"metric":"RL","name":"RL","value":"O","value_label":"O"},{"metric":"RC","name":"RC","value":"C","value_label":"Changed"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"windows-10-version-1607","product_name":"Windows 10 Version 1607","version_start":"10.0.14393.0","version_start_inclusive":true,"version_end":"publication","version_end_inclusive":false,"cpe23_uri":"cve5:microsoft:windows-10-version-1607:10.0.14393.0:publication"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"windows-10-version-1703","product_name":"Windows 10 Version 1703","version_start":"10.0.0","version_start_inclusive":true,"version_end":"publication","version_end_inclusive":false,"cpe23_uri":"cve5:microsoft:windows-10-version-1703:10.0.0:publication"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"windows-10-version-1709","product_name":"Windows 10 Version 1709","version_start":"10.0.0","version_start_inclusive":true,"version_end":"publication","version_end_inclusive":false,"cpe23_uri":"cve5:microsoft:windows-10-version-1709:10.0.0:publication"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"windows-10-version-1709-for-32-bit-systems","product_name":"Windows 10 Version 1709 for 32-bit Systems","version_start":"10.0.0","version_start_inclusive":true,"version_end":"publication","version_end_inclusive":false,"cpe23_uri":"cve5:microsoft:windows-10-version-1709-for-32-bit-systems:10.0.0:publication"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"windows-10-version-1803","product_name":"Windows 10 Version 1803","version_start":"10.0.0","version_start_inclusive":true,"version_end":"publication","version_end_inclusive":false,"cpe23_uri":"cve5:microsoft:windows-10-version-1803:10.0.0:publication"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"windows-10-version-1809","product_name":"Windows 10 Version 1809","version_start":"10.0.0","version_start_inclusive":true,"version_end":"publication","version_end_inclusive":false,"cpe23_uri":"cve5:microsoft:windows-10-version-1809:10.0.0:publication"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"windows-10-version-1809","product_name":"Windows 10 Version 1809","version_start":"10.0.17763.0","version_start_inclusive":true,"version_end":"publication","version_end_inclusive":false,"cpe23_uri":"cve5:microsoft:windows-10-version-1809:10.0.17763.0:publication"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"windows-10-version-1903-for-32-bit-systems","product_name":"Windows 10 Version 1903 for 32-bit Systems","version_start":"10.0.0","version_start_inclusive":true,"version_end":"publication","version_end_inclusive":false,"cpe23_uri":"cve5:microsoft:windows-10-version-1903-for-32-bit-systems:10.0.0:publication"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"windows-10-version-1903-for-arm64-based-systems","product_name":"Windows 10 Version 1903 for ARM64-based Systems","version_start":"10.0.0","version_start_inclusive":true,"version_end":"publication","version_end_inclusive":false,"cpe23_uri":"cve5:microsoft:windows-10-version-1903-for-arm64-based-systems:10.0.0:publication"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"windows-10-version-1903-for-x64-based-systems","product_name":"Windows 10 Version 1903 for x64-based Systems","version_start":"10.0.0","version_start_inclusive":true,"version_end":"publication","version_end_inclusive":false,"cpe23_uri":"cve5:microsoft:windows-10-version-1903-for-x64-based-systems:10.0.0:publication"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"windows-server-2016","product_name":"Windows Server 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2019","version_start":"10.0.17763.0","version_start_inclusive":true,"version_end":"publication","version_end_inclusive":false,"cpe23_uri":"cve5:microsoft:windows-server-2019:10.0.17763.0:publication"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"windows-server-2019-server-core-installation","product_name":"Windows Server 2019 (Server Core installation)","version_start":"10.0.17763.0","version_start_inclusive":true,"version_end":"publication","version_end_inclusive":false,"cpe23_uri":"cve5:microsoft:windows-server-2019-server-core-installation:10.0.17763.0:publication"},{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"windows-server-version-1803-server-core-installation","product_name":"Windows Server, version 1803  (Server Core 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catalog","source":"kev"},{"type":"ssvc_changed","at":"2026-06-24T00:31:19.303295Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-06-24T00:31:19.303295Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-06-24T00:31:19.303295Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"cvss_changed","at":"2026-06-24T00:31:19.303295Z","label":"CVSS score revised","source":"vulnrichment"},{"type":"cvss_changed","at":"2026-06-24T00:31:19.303295Z","label":"CVSS score revised","source":"vulnrichment"},{"type":"cvss_changed","at":"2026-06-24T00:31:19.303295Z","label":"CVSS score revised","source":"vulnrichment"}]}