{"answers":{"affected":"It affects 15 products.","exploited":"There is no known exploitation of CVE-2026-42909 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-42909 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-42909 is a high-severity vulnerability in Microsoft Windows 10 1607, published on 9 Jun 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-42909 and fix it if it is affected.\n\nWhat it is: CVE-2026-42909 is a high-severity vulnerability in Microsoft Windows 10 1607, published on 9 Jun 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-42909 in the wild and no public exploit code.\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-2026-42909/ (Markdown: https://insights.sbomify.com/CVE-2026-42909/index.md)","id":"CVE-2026-42909","markdown":"https://insights.sbomify.com/CVE-2026-42909/index.md","name":"CVE-2026-42909","record":{"aliases":["GHSA-2mfp-vqrw-7p7v"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Windows Remote Desktop Client","requires_auth":"none","summary":"An attacker can execute arbitrary code remotely via a race condition in the Windows Remote Desktop Client.","user_interaction":"required","vuln_class":"race_condition"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"microsoft","cpe":[{"product":"remote_desktop_client","vendor":"microsoft"},{"product":"windows_10_1607","vendor":"microsoft"},{"product":"windows_10_1809","vendor":"microsoft"},{"product":"windows_10_21h2","vendor":"microsoft"},{"product":"windows_10_22h2","vendor":"microsoft"},{"product":"windows_11_23h2","vendor":"microsoft"},{"product":"windows_11_24h2","vendor":"microsoft"},{"product":"windows_11_25h2","vendor":"microsoft"},{"product":"windows_11_26h1","vendor":"microsoft"},{"product":"windows_app","vendor":"microsoft"},{"product":"windows_server_2012","vendor":"microsoft"},{"product":"windows_server_2016","vendor":"microsoft"},{"product":"windows_server_2019","vendor":"microsoft"},{"product":"windows_server_2022","vendor":"microsoft"},{"product":"windows_server_2025","vendor":"microsoft"}],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","version":"3.1"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"},{"id":"CWE-416","name":"Use After Free"},{"id":"CWE-362","name":"Concurrent Execution using Shared Resource with Improper Synchronization"}],"description":"Concurrent execution using shared resource with improper synchronization ('race condition') in Remote Desktop Client allows an unauthorized attacker to execute code over a network.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Remote Desktop Client Remote Code Execution Vulnerability","id":"CVE-2026-42909","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"microsoft:windows_10_1607","products":["microsoft:windows_10_1607","microsoft:windows_10_1809","microsoft:windows_10_21h2","microsoft:windows_10_22h2","microsoft:windows_11_23h2","microsoft:windows_11_24h2","microsoft:windows_11_25h2","microsoft:windows_11_26h1","microsoft:windows_server_2012","microsoft:windows_server_2016","microsoft:windows_server_2019","microsoft:windows_server_2022","microsoft:windows_server_2025"],"type":"race_condition","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Windows Hotpatch Monitoring Service Elevation of Privilege Vulnerability","id":"CVE-2026-42910"},"packages":[],"prev":{"headline":"Windows Remote Desktop Protocol (RDP) Information Disclosure Vulnerability","id":"CVE-2026-42908"},"products":["Remote Desktop client for Windows Desktop","Windows 10 Version 1607","Windows 10 Version 1809","Windows 10 Version 21H2","Windows 10 Version 22H2","Windows 11 Version 23H2","Windows 11 Version 24H2","Windows 11 Version 25H2","Windows 11 version 23H2","Windows 11 version 26H1","Windows App Client for Windows Desktop","Windows Server 2012","Windows Server 2012 (Server Core installation)","Windows Server 2012 R2","Windows Server 2012 R2 (Server Core installation)","Windows Server 2016","Windows Server 2016 (Server Core installation)","Windows Server 2019","Windows Server 2019 (Server Core installation)","Windows Server 2022","Windows Server 2025","Windows Server 2025 (Server Core installation)"],"published":"2026-06-09","related":[{"cvss_score":8.8,"headline":"Remote Desktop Client Remote Code Execution Vulnerability","id":"CVE-2026-78463","kev_date_added":null,"published":"2026-09-08"},{"cvss_score":8.8,"headline":"Remote Desktop Client Remote Code Execution Vulnerability","id":"CVE-2026-80074","kev_date_added":null,"published":"2026-09-08"},{"cvss_score":8.8,"headline":"Remote Desktop Client Remote Code Execution Vulnerability","id":"CVE-2026-80077","kev_date_added":null,"published":"2026-09-08"},{"cvss_score":8.8,"headline":"Remote Desktop Client Remote Code Execution Vulnerability","id":"CVE-2026-42985","kev_date_added":null,"published":"2026-06-09"},{"cvss_score":8.8,"headline":"Remote Desktop Client Remote Code Execution Vulnerability","id":"CVE-2026-32157","kev_date_added":null,"published":"2026-04-14"},{"cvss_score":8.8,"headline":"Remote Desktop Client Remote Code Execution Vulnerability","id":"CVE-2025-58718","kev_date_added":null,"published":"2025-10-14"},{"cvss_score":8.8,"headline":"Remote Desktop Client Remote Code Execution Vulnerability","id":"CVE-2025-48817","kev_date_added":null,"published":"2025-07-08"}],"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":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-09-24","vendors":["Microsoft"]},"summary":"An attacker can execute arbitrary code remotely via a race condition in the Windows Remote Desktop Client.","url":"https://insights.sbomify.com/CVE-2026-42909/"}