{"answers":{"affected":"It affects 9 products.","exploited":"Yes. Attackers have exploited CVE-2021-1732 in the wild since at least 3 Nov 2021, including in ransomware campaigns.","fix":"No fix has been published for CVE-2021-1732 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 17 Nov 2021.","what":"CVE-2021-1732 is a high-severity memory corruption vulnerability in Microsoft Windows 10 1809, published on 25 Feb 2021. 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-2021-1732 and fix it if it is affected.\n\nWhat it is: CVE-2021-1732 is a high-severity memory corruption vulnerability in Microsoft Windows 10 1809, published on 25 Feb 2021. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: Yes. Attackers have exploited CVE-2021-1732 in the wild since at least 3 Nov 2021, including in ransomware campaigns.\n\nAffected product: Microsoft Windows 10 1809. 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-2021-1732/ (Markdown: https://insights.sbomify.com/CVE-2021-1732/index.md)","id":"CVE-2021-1732","markdown":"https://insights.sbomify.com/CVE-2021-1732/index.md","name":"CVE-2021-1732","record":{"aliases":["GHSA-gvwr-5hrc-2gr5"],"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":"low_privilege","summary":"Attackers can exploit a memory corruption flaw in Windows Win32k to gain elevated privileges on affected systems.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"microsoft","cpe":[{"product":"windows_10_1803","vendor":"microsoft"},{"product":"windows_10_1809","vendor":"microsoft"},{"product":"windows_10_1909","vendor":"microsoft"},{"product":"windows_10_2004","vendor":"microsoft"},{"product":"windows_10_20h2","vendor":"microsoft"},{"product":"windows_server_1909","vendor":"microsoft"},{"product":"windows_server_2004","vendor":"microsoft"},{"product":"windows_server_2019","vendor":"microsoft"},{"product":"windows_server_20h2","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:F/RL:O/RC:C","version":"3.1"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"}],"description":"Windows Win32k Elevation of Privilege Vulnerability","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2021-02-09","github_poc":13,"max_poc_stars":427,"metasploit":1,"nuclei":0,"refs":[{"date":"2021-03-05T02:11:10Z","kind":"github_poc","ref":"https://github.com/KaLendsi/CVE-2021-1732-Exploit","stars":427,"title":"CVE-2021-1732 Exploit"},{"date":"2021-04-23T08:21:54Z","kind":"github_poc","ref":"https://github.com/po4sec/CVE-2021-1732","stars":65,"title":"CVE-2021-1732 poc \u0026 exp; tested on 20H2"},{"date":"2021-04-25T12:55:15Z","kind":"github_poc","ref":"https://github.com/exploitblizzard/Windows-Privilege-Escalation-CVE-2021-1732","stars":31,"title":"Read my  blog for more info - "},{"date":"2022-11-01T13:06:17Z","kind":"github_poc","ref":"https://github.com/fenalik/CVE-2021-1732","stars":15,"title":"CVE-­2021­-1732 Microsoft Windows 10 本地提权漏 研究及Poc/Exploit开发"},{"date":"2023-03-09T07:14:45Z","kind":"github_poc","ref":"https://github.com/4dp/CVE-2021-1732","stars":4,"title":"CVE-­2021­-1732 Microsoft Windows 10 本地提权漏 研究及Poc/Exploit开发"},{"date":"2021-04-02T01:35:41Z","kind":"github_poc","ref":"https://github.com/linuxdy/CVE-2021-1732_exp","stars":3,"title":null},{"date":"2021-03-09T02:13:43Z","kind":"github_poc","ref":"https://github.com/oneoy/CVE-2021-1732-Exploit","stars":1,"title":null},{"date":"2021-09-24T01:28:58Z","kind":"github_poc","ref":"https://github.com/BeneficialCode/CVE-2021-1732","stars":1,"title":null}],"tier":"exploited"},"has_fix":null,"headline":"Microsoft Win32k Privilege Escalation","id":"CVE-2021-1732","indexable":true,"kev":{"dateAdded":"2021-11-03","dueDate":"2021-11-17","knownRansomwareCampaignUse":"Known","product":"Win32k","requiredAction":"Apply updates per vendor instructions.","vendorProject":"Microsoft","vulnerabilityName":"Microsoft Win32k Privilege Escalation Vulnerability"},"kind":"cve","links":{"ecosystem":null,"product":"microsoft:windows_10_1809","products":["microsoft:windows_10_1809","microsoft:windows_10_20h2","microsoft:windows_server_2019","microsoft:windows_server_20h2"],"type":"memory_corruption","year":"2021"},"n_packages":0,"n_references":3,"next":{"headline":"Sysinternals PsExec Elevation of Privilege Vulnerability","id":"CVE-2021-1733"},"packages":[],"prev":{"headline":"PFX Encryption Security Feature Bypass Vulnerability","id":"CVE-2021-1731"},"products":["Windows 10 Version 1803","Windows 10 Version 1809","Windows 10 Version 1909","Windows 10 Version 2004","Windows 10 Version 20H2","Windows Server 2019","Windows Server 2019 (Server Core installation)","Windows Server version 2004","Windows Server version 20H2","Windows Server, version 1909 (Server Core installation)"],"published":"2021-02-25","related":[{"cvss_score":7.8,"headline":"Microsoft Win32k Privilege Escalation","id":"CVE-2021-28310","kev_date_added":"2021-11-03","published":"2021-04-13"},{"cvss_score":7.8,"headline":"Microsoft Windows Privilege Escalation","id":"CVE-2019-1322","kev_date_added":"2022-03-15","published":"2019-10-10"}],"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":"2026-08-12","vendors":["Microsoft"]},"summary":"Attackers can exploit a memory corruption flaw in Windows Win32k to gain elevated privileges on affected systems.","url":"https://insights.sbomify.com/CVE-2021-1732/"}