{"answers":{"affected":"It affects 3 products.","exploited":"There is no known exploitation of CVE-2021-34525 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-34525 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-34525 is a high-severity memory corruption vulnerability in Microsoft Windows Server 2012, published on 14 Jul 2021. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-34525 and fix it if it is affected.\n\nWhat it is: CVE-2021-34525 is a high-severity memory corruption vulnerability in Microsoft Windows Server 2012, published on 14 Jul 2021. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2021-34525 in the wild and no public exploit code.\n\nAffected product: Microsoft Windows Server 2012. 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-2021-34525/ (Markdown: https://insights.sbomify.com/CVE-2021-34525/index.md)","id":"CVE-2021-34525","markdown":"https://insights.sbomify.com/CVE-2021-34525/index.md","name":"CVE-2021-34525","record":{"aliases":["GHSA-5jx6-vwcr-r4rq"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Windows DNS Server","requires_auth":"low_privilege","summary":"Remote attackers can execute arbitrary code on Windows DNS Server via a memory corruption vulnerability, requiring immediate patching.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"microsoft","cpe":[{"product":"windows_server_2012","vendor":"microsoft"},{"product":"windows_server_2016","vendor":"microsoft"},{"product":"windows_server_2019","vendor":"microsoft"}],"cvss":{"score":8.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","version":"3.1"},"cwes":[],"description":"Windows DNS Server 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 DNS Server Remote Code Execution Vulnerability","id":"CVE-2021-34525","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"microsoft:windows_server_2012","products":["microsoft:windows_server_2012","microsoft:windows_server_2016","microsoft:windows_server_2019"],"type":"memory_corruption","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Microsoft Windows Print Spooler Remote Code Execution","id":"CVE-2021-34527"},"packages":[],"prev":{"headline":"Microsoft Dynamics 365 On-Premises Remote Code Execution Vulnerability","id":"CVE-2021-34524"},"products":["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 version 2004","Windows Server version 20H2"],"published":"2021-07-14","related":[{"cvss_score":9.8,"headline":"Microsoft Windows Server Update Service (WSUS) Deserialization of Untrusted Data","id":"CVE-2025-59287","kev_date_added":"2025-10-24","published":"2025-10-14"},{"cvss_score":9.8,"headline":"Windows Services for NFS ONCRPC XDR Driver Remote Code Execution Vulnerability","id":"CVE-2026-69595","kev_date_added":null,"published":"2026-09-08"},{"cvss_score":9.8,"headline":"Windows Services for NFS ONCRPC XDR Driver Remote Code Execution Vulnerability","id":"CVE-2026-78445","kev_date_added":null,"published":"2026-09-08"},{"cvss_score":9.8,"headline":"Windows Netlogon Remote Code Execution Vulnerability","id":"CVE-2026-41089","kev_date_added":null,"published":"2026-05-12"},{"cvss_score":9.8,"headline":"Windows KDC Proxy Remote Code Execution Vulnerability","id":"CVE-2024-43639","kev_date_added":null,"published":"2024-11-12"},{"cvss_score":9.8,"headline":"Windows Network File System Remote Code Execution Vulnerability","id":"CVE-2023-24941","kev_date_added":null,"published":"2023-05-09"},{"cvss_score":9.8,"headline":"Windows Network File System Remote Code Execution Vulnerability","id":"CVE-2022-30136","kev_date_added":null,"published":"2022-06-15"}],"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":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-08-10","vendors":["Microsoft"]},"summary":"Remote attackers can execute arbitrary code on Windows DNS Server via a memory corruption vulnerability, requiring immediate patching.","url":"https://insights.sbomify.com/CVE-2021-34525/"}