{"answers":{"affected":"It affects 6 products.","exploited":"There is no known exploitation of CVE-2023-21539 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2023-21539 yet. Limit exposure of the affected software until one is available.","what":"CVE-2023-21539 is a high-severity memory corruption vulnerability in Microsoft Windows 10 20h2, published on 10 Jan 2023. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-21539 and fix it if it is affected.\n\nWhat it is: CVE-2023-21539 is a high-severity memory corruption vulnerability in Microsoft Windows 10 20h2, published on 10 Jan 2023. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2023-21539 in the wild and no public exploit code.\n\nAffected product: Microsoft Windows 10 20h2. 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-2023-21539/ (Markdown: https://insights.sbomify.com/CVE-2023-21539/index.md)","id":"CVE-2023-21539","markdown":"https://insights.sbomify.com/CVE-2023-21539/index.md","name":"CVE-2023-21539","record":{"aliases":["GHSA-vjf5-w6w5-295q"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Windows OS","requires_auth":"low_privilege","summary":"An attacker can execute arbitrary code on Windows systems via a memory corruption flaw in the authentication component.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"microsoft","cpe":[{"product":"windows_10_20h2","vendor":"microsoft"},{"product":"windows_10_21h2","vendor":"microsoft"},{"product":"windows_10_22h2","vendor":"microsoft"},{"product":"windows_11_21h2","vendor":"microsoft"},{"product":"windows_11_22h2","vendor":"microsoft"},{"product":"windows_server_2022","vendor":"microsoft"}],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","version":"3.1"},"cwes":[{"id":"CWE-125","name":"Out-of-bounds Read"}],"description":"Windows Authentication Remote Code Execution Vulnerability","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":"Windows Authentication Remote Code Execution Vulnerability","id":"CVE-2023-21539","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"microsoft:windows_10_20h2","products":["microsoft:windows_10_20h2","microsoft:windows_10_21h2","microsoft:windows_10_22h2","microsoft:windows_11_21h2","microsoft:windows_11_22h2","microsoft:windows_server_2022"],"type":"memory_corruption","year":"2023"},"n_packages":0,"n_references":1,"next":{"headline":"Windows Cryptographic Information Disclosure Vulnerability","id":"CVE-2023-21540"},"packages":[],"prev":{"headline":".NET Denial of Service Vulnerability","id":"CVE-2023-21538"},"products":["Windows 10 Version 20H2","Windows 10 Version 21H2","Windows 10 Version 22H2","Windows 11 version 21H2","Windows 11 version 22H2","Windows Server 2022"],"published":"2023-01-10","related":[{"cvss_score":8.8,"headline":"Windows Bluetooth Service Remote Code Execution Vulnerability","id":"CVE-2023-24871","kev_date_added":null,"published":"2023-03-14"},{"cvss_score":7.8,"headline":"Remote Desktop Client Remote Code Execution Vulnerability","id":"CVE-2023-24905","kev_date_added":null,"published":"2023-05-09"},{"cvss_score":7.8,"headline":"Microsoft DWM Core Library Elevation of Privilege Vulnerability","id":"CVE-2023-21724","kev_date_added":null,"published":"2023-01-10"},{"cvss_score":7,"headline":"Windows Bind Filter Driver Elevation of Privilege Vulnerability","id":"CVE-2023-21733","kev_date_added":null,"published":"2023-01-10"},{"cvss_score":6.5,"headline":"Windows Local Session Manager (LSM) Denial of Service Vulnerability","id":"CVE-2022-44684","kev_date_added":null,"published":"2023-12-20"}],"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":"2025-01-01","vendors":["Microsoft"]},"summary":"An attacker can execute arbitrary code on Windows systems via a memory corruption flaw in the authentication component.","url":"https://insights.sbomify.com/CVE-2023-21539/"}