{"answers":{"affected":"It affects 3 products.","exploited":"Yes. Attackers have exploited CVE-2020-1040 in the wild since at least 3 Nov 2021.","fix":"No fix has been published for CVE-2020-1040 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 3 May 2022.","what":"CVE-2020-1040 is a critical memory corruption vulnerability in Microsoft Windows Server 2008, published on 14 Jul 2020. 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-2020-1040 and fix it if it is affected.\n\nWhat it is: CVE-2020-1040 is a critical memory corruption vulnerability in Microsoft Windows Server 2008, published on 14 Jul 2020. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: Yes. Attackers have exploited CVE-2020-1040 in the wild since at least 3 Nov 2021.\n\nAffected product: Microsoft Windows Server 2008. 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-2020-1040/ (Markdown: https://insights.sbomify.com/CVE-2020-1040/index.md)","id":"CVE-2020-1040","markdown":"https://insights.sbomify.com/CVE-2020-1040/index.md","name":"CVE-2020-1040","record":{"aliases":["GHSA-98qh-xxww-5r96"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["code_execution"],"network_reachable":"adjacent_or_local","non_default_config":true,"product_category":"Windows Server Hyper-V","requires_auth":"low_privilege","summary":"An authenticated guest user can trigger remote code execution on the Hyper-V host via improper input validation in RemoteFX vGPU.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"microsoft","cpe":[{"product":"windows_server_2008","vendor":"microsoft"},{"product":"windows_server_2012","vendor":"microsoft"},{"product":"windows_server_2016","vendor":"microsoft"}],"cvss":{"score":9,"severity":"critical","source":"cisa-adp","vector":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-20","name":"Improper Input Validation"}],"description":"A remote code execution vulnerability exists when Hyper-V RemoteFX vGPU on a host server fails to properly validate input from an authenticated user on a guest operating system, aka 'Hyper-V RemoteFX vGPU Remote Code Execution Vulnerability'. This CVE ID is unique from CVE-2020-1032, CVE-2020-1036, CVE-2020-1041, CVE-2020-1042, CVE-2020-1043.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"exploited"},"has_fix":null,"headline":"Microsoft Hyper-V RemoteFX vGPU Remote Code Execution","id":"CVE-2020-1040","indexable":true,"kev":{"dateAdded":"2021-11-03","dueDate":"2022-05-03","knownRansomwareCampaignUse":"Unknown","product":"Hyper-V RemoteFX","requiredAction":"Apply updates per vendor instructions.","vendorProject":"Microsoft","vulnerabilityName":"Microsoft Hyper-V RemoteFX vGPU Remote Code Execution Vulnerability"},"kind":"cve","links":{"ecosystem":null,"product":"microsoft:windows_server_2008","products":["microsoft:windows_server_2008","microsoft:windows_server_2012","microsoft:windows_server_2016"],"type":"memory_corruption","year":"2020"},"n_packages":0,"n_references":2,"next":{"headline":"Memory corruption in Windows Server","id":"CVE-2020-1041"},"packages":[],"prev":{"headline":"Jet Database Engine Remote Code Execution Vulnerability","id":"CVE-2020-1039"},"products":["Windows Server"],"published":"2020-07-14","related":[{"cvss_score":10,"headline":"Microsoft Windows DNS Server Remote Code Execution","id":"CVE-2020-1350","kev_date_added":"2021-11-03","published":"2020-07-14"},{"cvss_score":10,"headline":"Memory corruption in n/a","id":"CVE-2011-1966","kev_date_added":null,"published":"2011-08-10"},{"cvss_score":10,"headline":"Memory corruption in n/a","id":"CVE-2010-0239","kev_date_added":null,"published":"2010-02-10"},{"cvss_score":10,"headline":"Code injection in n/a","id":"CVE-2010-0240","kev_date_added":null,"published":"2010-02-10"},{"cvss_score":10,"headline":"Code injection in n/a","id":"CVE-2010-0241","kev_date_added":null,"published":"2010-02-10"},{"cvss_score":10,"headline":"Memory corruption in n/a","id":"CVE-2009-2505","kev_date_added":null,"published":"2009-12-09"}],"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)"}],"ssvc":{"automatable":"no","exploitation":"active","technical_impact":"total"},"state":"PUBLISHED","updated":"2025-10-21","vendors":["Microsoft"]},"summary":"An authenticated guest user can trigger remote code execution on the Hyper-V host via improper input validation in RemoteFX vGPU.","url":"https://insights.sbomify.com/CVE-2020-1040/"}