{"answers":{"affected":"It affects 13 products.","exploited":"Yes. Attackers have exploited CVE-2018-8639 in the wild since at least 3 Mar 2025, including in ransomware campaigns.","fix":"No fix has been published for CVE-2018-8639 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 24 Mar 2025.","what":"CVE-2018-8639 is a high-severity vulnerability in Microsoft Windows 10 1507, published on 12 Dec 2018. 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-2018-8639 and fix it if it is affected.\n\nWhat it is: CVE-2018-8639 is a high-severity vulnerability in Microsoft Windows 10 1507, published on 12 Dec 2018. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: Yes. Attackers have exploited CVE-2018-8639 in the wild since at least 3 Mar 2025, including in ransomware campaigns.\n\nAffected product: Microsoft Windows 10 1507. 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-2018-8639/ (Markdown: https://insights.sbomify.com/CVE-2018-8639/index.md)","id":"CVE-2018-8639","markdown":"https://insights.sbomify.com/CVE-2018-8639/index.md","name":"CVE-2018-8639","record":{"aliases":["GHSA-93mm-g479-2cx4"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["privilege_escalation"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Windows OS","requires_auth":"none","summary":"An attacker can exploit a Win32k memory handling flaw to gain elevated privileges on affected Windows systems.","user_interaction":"not_required","vuln_class":"privilege_escalation"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"microsoft","cpe":[{"product":"windows_10_1507","vendor":"microsoft"},{"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_7","vendor":"microsoft"},{"product":"windows_8.1","vendor":"microsoft"},{"product":"windows_rt_8.1","vendor":"microsoft"},{"product":"windows_server_2008","vendor":"microsoft"},{"product":"windows_server_2012","vendor":"microsoft"},{"product":"windows_server_2016","vendor":"microsoft"},{"product":"windows_server_2019","vendor":"microsoft"}],"cvss":{"score":8.4,"severity":"high","source":"cisa-adp","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-404","name":"Improper Resource Shutdown or Release"}],"description":"An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka \"Win32k Elevation of Privilege Vulnerability.\" This affects Windows 7, Windows Server 2012 R2, Windows RT 8.1, Windows Server 2008, Windows Server 2019, Windows Server 2012, Windows 8.1, Windows Server 2016, Windows Server 2008 R2, Windows 10, Windows 10 Servers. This CVE ID is unique from CVE-2018-8641.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2019-03-05","github_poc":2,"max_poc_stars":125,"metasploit":0,"nuclei":0,"refs":[{"date":"2019-03-05T14:18:07Z","kind":"github_poc","ref":"https://github.com/ze0r/CVE-2018-8639-exp","stars":125,"title":null},{"date":"2019-12-27T07:39:07Z","kind":"github_poc","ref":"https://github.com/timwhitez/CVE-2018-8639-EXP","stars":5,"title":"CVE-2018-8639-EXP"}],"tier":"exploited"},"has_fix":null,"headline":"Microsoft Windows Win32k Improper Resource Shutdown or Release","id":"CVE-2018-8639","indexable":true,"kev":{"dateAdded":"2025-03-03","dueDate":"2025-03-24","knownRansomwareCampaignUse":"Known","product":"Windows","requiredAction":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","vendorProject":"Microsoft","vulnerabilityName":"Microsoft Windows Win32k Improper Resource Shutdown or Release Vulnerability"},"kind":"cve","links":{"ecosystem":null,"product":"microsoft:windows_10_1507","products":["microsoft:windows_10_1507","microsoft:windows_10_1607","microsoft:windows_10_1809","microsoft:windows_7","microsoft:windows_8.1","microsoft:windows_rt_8.1","microsoft:windows_server_2008","microsoft:windows_server_2012","microsoft:windows_server_2016","microsoft:windows_server_2019"],"type":"privilege_escalation","year":"2018"},"n_packages":0,"n_references":2,"next":{"headline":"Privilege escalation in Windows 10","id":"CVE-2018-8641"},"packages":[],"prev":{"headline":"Information disclosure in Windows 10","id":"CVE-2018-8638"},"products":["Windows 10","Windows 10 Servers","Windows 7","Windows 8.1","Windows RT 8.1","Windows Server 2008","Windows Server 2008 R2","Windows Server 2012","Windows Server 2012 R2","Windows Server 2016","Windows Server 2019"],"published":"2018-12-12","related":[{"cvss_score":9.8,"headline":"Microsoft Windows Search Remote Code Execution","id":"CVE-2017-8543","kev_date_added":"2022-05-24","published":"2017-06-15"},{"cvss_score":8.8,"headline":"Microsoft Windows External Control of File Name or Path","id":"CVE-2025-33053","kev_date_added":"2025-06-10","published":"2025-06-10"},{"cvss_score":8.8,"headline":"Microsoft Windows SMB Client Improper Access Control","id":"CVE-2025-33073","kev_date_added":"2025-10-20","published":"2025-06-10"},{"cvss_score":8.8,"headline":"Microsoft Windows Task Scheduler Privilege Escalation","id":"CVE-2024-49039","kev_date_added":"2024-11-12","published":"2024-11-12"},{"cvss_score":8.8,"headline":"Microsoft Windows MSHTML Platform Spoofing","id":"CVE-2024-43461","kev_date_added":"2024-09-16","published":"2024-09-10"},{"cvss_score":8.8,"headline":"Microsoft Windows MSHTML Platform Security Feature Bypass","id":"CVE-2024-30040","kev_date_added":"2024-05-14","published":"2024-05-14"},{"cvss_score":8.8,"headline":"Microsoft Windows SmartScreen Security Feature Bypass","id":"CVE-2023-36025","kev_date_added":"2023-11-14","published":"2023-11-14"}],"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 can exploit a Win32k memory handling flaw to gain elevated privileges on affected Windows systems.","url":"https://insights.sbomify.com/CVE-2018-8639/"}