{"answers":{"affected":"It affects 11 products.","exploited":"Yes. Attackers have exploited CVE-2019-1064 in the wild since at least 15 Mar 2022, including in ransomware campaigns.","fix":"No fix has been published for CVE-2019-1064 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 5 Apr 2022.","what":"CVE-2019-1064 is a high-severity vulnerability in Microsoft Windows 10 1607, published on 12 Jun 2019. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2019-1064 and fix it if it is affected.\n\nWhat it is: CVE-2019-1064 is a high-severity vulnerability in Microsoft Windows 10 1607, published on 12 Jun 2019. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: Yes. Attackers have exploited CVE-2019-1064 in the wild since at least 15 Mar 2022, including in ransomware campaigns.\n\nAffected product: Microsoft Windows 10 1607. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2019-1064/ (Markdown: https://insights.sbomify.com/CVE-2019-1064/index.md)","id":"CVE-2019-1064","markdown":"https://insights.sbomify.com/CVE-2019-1064/index.md","name":"CVE-2019-1064","record":{"aliases":["GHSA-7q5j-w2g3-7f8v"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["privilege_escalation","code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Windows OS","requires_auth":"low_privilege","summary":"An attacker with local access can exploit improper hard link handling in Windows AppX Deployment Service to gain elevated privileges and control the system.","user_interaction":"not_required","vuln_class":"privilege_escalation"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"microsoft","cpe":[{"product":"windows_10_1607","vendor":"microsoft"},{"product":"windows_10_1703","vendor":"microsoft"},{"product":"windows_10_1709","vendor":"microsoft"},{"product":"windows_10_1803","vendor":"microsoft"},{"product":"windows_10_1809","vendor":"microsoft"},{"product":"windows_10_1903","vendor":"microsoft"},{"product":"windows_server_1709","vendor":"microsoft"},{"product":"windows_server_1803","vendor":"microsoft"},{"product":"windows_server_1903","vendor":"microsoft"},{"product":"windows_server_2016","vendor":"microsoft"},{"product":"windows_server_2019","vendor":"microsoft"}],"cvss":{"score":7.8,"severity":"high","source":"cna","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","version":"3.1"},"cwes":[{"id":"CWE-59","name":"Improper Link Resolution Before File Access"}],"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.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2019-06-12","github_poc":3,"max_poc_stars":26,"metasploit":0,"nuclei":0,"refs":[{"date":"2019-06-12T10:21:35Z","kind":"github_poc","ref":"https://github.com/RythmStick/CVE-2019-1064","stars":26,"title":"CVE-2019-1064 Local Privilege Escalation Vulnerability"},{"date":"2019-06-12T15:54:55Z","kind":"github_poc","ref":"https://github.com/0x00-0x00/CVE-2019-1064","stars":11,"title":"CVE-2019-1064 Local Privilege Escalation Vulnerability"},{"date":"2019-06-16T09:31:11Z","kind":"github_poc","ref":"https://github.com/attackgithub/CVE-2019-1064","stars":1,"title":"CVE-2019-1064 - AppXSVC Local Privilege Escalation"}],"tier":"exploited"},"has_fix":null,"headline":"Microsoft Windows AppX Deployment Service (AppXSVC) Privilege Escalation","id":"CVE-2019-1064","indexable":true,"kev":{"dateAdded":"2022-03-15","dueDate":"2022-04-05","knownRansomwareCampaignUse":"Known","product":"Windows","requiredAction":"Apply updates per vendor instructions.","vendorProject":"Microsoft","vulnerabilityName":"Microsoft Windows AppX Deployment Service (AppXSVC) Privilege Escalation Vulnerability"},"kind":"cve","links":{"ecosystem":null,"product":"microsoft:windows_10_1607","products":["microsoft:windows_10_1607","microsoft:windows_10_1809","microsoft:windows_server_2016","microsoft:windows_server_2019"],"type":"privilege_escalation","year":"2019"},"n_packages":0,"n_references":1,"next":{"headline":"Windows Kernel Elevation of Privilege Vulnerability","id":"CVE-2019-1065"},"packages":[],"prev":{"headline":"Memory corruption in Internet Explorer 10","id":"CVE-2019-1063"},"products":["Windows 10 Version 1607","Windows 10 Version 1703","Windows 10 Version 1709","Windows 10 Version 1709 for 32-bit Systems","Windows 10 Version 1803","Windows 10 Version 1809","Windows 10 Version 1903 for 32-bit Systems","Windows 10 Version 1903 for ARM64-based Systems","Windows 10 Version 1903 for x64-based Systems","Windows Server 2016","Windows Server 2016 (Server Core installation)","Windows Server 2019","Windows Server 2019 (Server Core installation)","Windows Server, version 1803  (Server Core Installation)","Windows Server, version 1903 (Server Core installation)"],"published":"2019-06-12","related":[{"cvss_score":9.8,"headline":"Microsoft Internet Key Exchange (IKE) Service Extensions Double Free","id":"CVE-2026-33824","kev_date_added":"2026-08-18","published":"2026-04-14"},{"cvss_score":8.8,"headline":"Microsoft Windows Shell Protection Mechanism Failure","id":"CVE-2026-21510","kev_date_added":"2026-02-10","published":"2026-02-10"},{"cvss_score":8.8,"headline":"Microsoft MSHTML Framework Protection Mechanism Failure","id":"CVE-2026-21513","kev_date_added":"2026-02-10","published":"2026-02-10"},{"cvss_score":8.8,"headline":"Microsoft Windows Defender SmartScreen Security Feature Bypass","id":"CVE-2023-32049","kev_date_added":"2023-07-11","published":"2023-07-11"},{"cvss_score":8.4,"headline":"Microsoft Streaming Service Untrusted Pointer Dereference","id":"CVE-2023-29360","kev_date_added":"2024-02-29","published":"2023-06-13"},{"cvss_score":7.8,"headline":"Microsoft Windows Heap-Based Buffer Overflow","id":"CVE-2026-85880","kev_date_added":"2026-09-08","published":"2026-09-08"},{"cvss_score":7.8,"headline":"Microsoft Active Directory Federation Services Insufficient Granularity of Access Control Vulnerability","id":"CVE-2026-56155","kev_date_added":"2026-07-14","published":"2026-07-14"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"open","licence":"CC0 1.0","name":"CISA KEV"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"no","exploitation":"active","technical_impact":"total"},"state":"PUBLISHED","updated":"2025-10-21","vendors":["Microsoft"]},"summary":"An attacker with local access can exploit improper hard link handling in Windows AppX Deployment Service to gain elevated privileges and control the system.","url":"https://insights.sbomify.com/CVE-2019-1064/"}