{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-21219 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-21219 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-21219 is a high-severity use after free vulnerability in Microsoft Windows SDK, published on 13 Jan 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-21219 and fix it if it is affected.\n\nWhat it is: CVE-2026-21219 is a high-severity use after free vulnerability in Microsoft Windows SDK, published on 13 Jan 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-21219 in the wild and no public exploit code.\n\nAffected product: Microsoft Windows SDK. 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-2026-21219/ (Markdown: https://insights.sbomify.com/CVE-2026-21219/index.md)","id":"CVE-2026-21219","markdown":"https://insights.sbomify.com/CVE-2026-21219/index.md","name":"CVE-2026-21219","record":{"aliases":["GHSA-wvh3-vgpw-w4mr"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Windows SDK","requires_auth":"none","summary":"An attacker can execute code locally via a use-after-free vulnerability in Windows SDK Inbox COM Objects.","user_interaction":"required","vuln_class":"use_after_free"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"microsoft","cpe":[{"product":"windows_software_development_kit","vendor":"microsoft"}],"cvss":{"score":7,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/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":"Use after free in Inbox COM Objects allows an unauthorized attacker to execute code locally.","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":"Inbox COM Objects (Global Memory) Remote Code Execution Vulnerability","id":"CVE-2026-21219","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"use_after_free","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Capability Access Management Service (camsvc) Elevation of Privilege Vulnerability","id":"CVE-2026-21221"},"packages":[],"prev":{"headline":".NET Spoofing Vulnerability","id":"CVE-2026-21218"},"products":["Windows SDK"],"published":"2026-01-13","related":[{"cvss_score":7.8,"headline":"Windows SDK Elevation of Privilege Vulnerability","id":"CVE-2025-47962","kev_date_added":null,"published":"2025-06-10"}],"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":"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":"2026-07-30","vendors":["Microsoft"]},"summary":"An attacker can execute code locally via a use-after-free vulnerability in Windows SDK Inbox COM Objects.","url":"https://insights.sbomify.com/CVE-2026-21219/"}