{"answers":{"affected":"It affects 7 products.","exploited":"Yes. Attackers have exploited CVE-2025-21335 in the wild since at least 14 Jan 2025.","fix":"No fix has been published for CVE-2025-21335 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 4 Feb 2025.","what":"CVE-2025-21335 is a high-severity use after free vulnerability in Microsoft Windows 10 21h2, published on 14 Jan 2025. 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-2025-21335 and fix it if it is affected.\n\nWhat it is: CVE-2025-21335 is a high-severity use after free vulnerability in Microsoft Windows 10 21h2, published on 14 Jan 2025. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: Yes. Attackers have exploited CVE-2025-21335 in the wild since at least 14 Jan 2025.\n\nAffected product: Microsoft Windows 10 21h2. 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-2025-21335/ (Markdown: https://insights.sbomify.com/CVE-2025-21335/index.md)","id":"CVE-2025-21335","markdown":"https://insights.sbomify.com/CVE-2025-21335/index.md","name":"CVE-2025-21335","record":{"aliases":["GHSA-6p26-7gx2-v5m2"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["privilege_escalation"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Windows Hyper-V","requires_auth":"low_privilege","summary":"An attacker can exploit a use-after-free flaw in Windows Hyper-V to elevate privileges on affected systems.","user_interaction":"not_required","vuln_class":"use_after_free"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"microsoft","cpe":[{"product":"windows_10_21h2","vendor":"microsoft"},{"product":"windows_10_22h2","vendor":"microsoft"},{"product":"windows_11_22h2","vendor":"microsoft"},{"product":"windows_11_23h2","vendor":"microsoft"},{"product":"windows_11_24h2","vendor":"microsoft"},{"product":"windows_server_2022_23h2","vendor":"microsoft"},{"product":"windows_server_2025","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:U/RL:O/RC:C","version":"3.1"},"cwes":[{"id":"CWE-416","name":"Use After Free"}],"description":"Windows Hyper-V NT Kernel Integration VSP Elevation of Privilege Vulnerability","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 Windows Hyper-V NT Kernel Integration VSP Use-After-Free","id":"CVE-2025-21335","indexable":true,"kev":{"dateAdded":"2025-01-14","dueDate":"2025-02-04","knownRansomwareCampaignUse":"Unknown","product":"Windows","requiredAction":"Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.","vendorProject":"Microsoft","vulnerabilityName":"Microsoft Windows Hyper-V NT Kernel Integration VSP Use-After-Free Vulnerability"},"kind":"cve","links":{"ecosystem":null,"product":"microsoft:windows_10_21h2","products":["microsoft:windows_10_21h2","microsoft:windows_10_22h2","microsoft:windows_11_22h2","microsoft:windows_11_23h2","microsoft:windows_11_24h2","microsoft:windows_server_2022_23h2","microsoft:windows_server_2025"],"type":"use_after_free","year":"2025"},"n_packages":0,"n_references":1,"next":{"headline":"Windows Cryptographic Information Disclosure Vulnerability","id":"CVE-2025-21336"},"packages":[],"prev":{"headline":"Microsoft Windows Hyper-V NT Kernel Integration VSP Use-After-Free","id":"CVE-2025-21334"},"products":["Windows 10 Version 21H2","Windows 10 Version 22H2","Windows 11 Version 23H2","Windows 11 Version 24H2","Windows 11 version 22H2","Windows 11 version 22H3","Windows Server 2022, 23H2 Edition (Server Core installation)","Windows Server 2025","Windows Server 2025 (Server Core installation)"],"published":"2025-01-14","related":[{"cvss_score":7.8,"headline":"Microsoft Windows Hyper-V NT Kernel Integration VSP Heap-based Buffer Overflow","id":"CVE-2025-21333","kev_date_added":"2025-01-14","published":"2025-01-14"},{"cvss_score":7.8,"headline":"Microsoft Windows Hyper-V NT Kernel Integration VSP Use-After-Free","id":"CVE-2025-21334","kev_date_added":"2025-01-14","published":"2025-01-14"},{"cvss_score":9.6,"headline":"Windows TCP/IP Elevation of Privilege Vulnerability","id":"CVE-2026-42904","kev_date_added":null,"published":"2026-06-09"},{"cvss_score":8.8,"headline":"Windows Hyper-V Remote Code Execution Vulnerability","id":"CVE-2026-105733","kev_date_added":null,"published":"2026-10-13"},{"cvss_score":8.8,"headline":"Windows AppX Deployment Extensions Elevation of Privilege Vulnerability","id":"CVE-2026-69945","kev_date_added":null,"published":"2026-10-13"},{"cvss_score":8.8,"headline":"Windows Graphics Kernel Elevation of Privilege Vulnerability","id":"CVE-2026-88073","kev_date_added":null,"published":"2026-10-13"}],"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":"2026-06-09","vendors":["Microsoft"]},"summary":"An attacker can exploit a use-after-free flaw in Windows Hyper-V to elevate privileges on affected systems.","url":"https://insights.sbomify.com/CVE-2025-21335/"}