{"answers":{"affected":"It affects 3 products.","exploited":"There is no known exploitation of CVE-2026-20819 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-20819 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-20819 is a medium-severity vulnerability in Microsoft Windows 11 23h2, published on 13 Jan 2026. 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-2026-20819 and fix it if it is affected.\n\nWhat it is: CVE-2026-20819 is a medium-severity vulnerability in Microsoft Windows 11 23h2, published on 13 Jan 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-20819 in the wild and no public exploit code.\n\nAffected product: Microsoft Windows 11 23h2. 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-2026-20819/ (Markdown: https://insights.sbomify.com/CVE-2026-20819/index.md)","id":"CVE-2026-20819","markdown":"https://insights.sbomify.com/CVE-2026-20819/index.md","name":"CVE-2026-20819","record":{"aliases":["GHSA-5jf9-4wp5-w27r"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["data_read"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Windows VBS Enclave","requires_auth":"low_privilege","summary":"An authorized local attacker can exploit an untrusted pointer dereference in Windows VBS Enclave to disclose sensitive information.","user_interaction":"not_required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"microsoft","cpe":[{"product":"windows_11_23h2","vendor":"microsoft"},{"product":"windows_11_24h2","vendor":"microsoft"},{"product":"windows_11_25h2","vendor":"microsoft"}],"cvss":{"score":5.5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","version":"3.1"},"cwes":[{"id":"CWE-822","name":"Untrusted Pointer Dereference"}],"description":"Untrusted pointer dereference in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to disclose information 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":"Windows Virtualization-Based Security (VBS) Information Disclosure Vulnerability","id":"CVE-2026-20819","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"microsoft:windows_11_23h2","products":["microsoft:windows_11_23h2","microsoft:windows_11_24h2","microsoft:windows_11_25h2"],"type":"information_disclosure","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Windows Common Log File System Driver Elevation of Privilege Vulnerability","id":"CVE-2026-20820"},"packages":[],"prev":{"headline":"Windows Kernel Information Disclosure Vulnerability","id":"CVE-2026-20818"},"products":["Windows 11 Version 23H2","Windows 11 Version 24H2","Windows 11 Version 25H2","Windows 11 version 23H2"],"published":"2026-01-13","related":[{"cvss_score":7.8,"headline":"Microsoft Windows Link Following","id":"CVE-2026-81963","kev_date_added":"2026-09-08","published":"2026-09-08"},{"cvss_score":9.8,"headline":"Microsoft QUIC Remote Code Execution Vulnerability","id":"CVE-2026-100219","kev_date_added":null,"published":"2026-10-13"},{"cvss_score":9.8,"headline":"Windows BitLocker Remote Code Execution Vulnerability","id":"CVE-2026-96909","kev_date_added":null,"published":"2026-10-13"},{"cvss_score":9.8,"headline":"Microsoft QUIC Remote Code Execution Vulnerability","id":"CVE-2026-62815","kev_date_added":null,"published":"2026-08-11"},{"cvss_score":9.8,"headline":"Windows Kernel Remote Code Execution Vulnerability","id":"CVE-2026-45657","kev_date_added":null,"published":"2026-06-09"},{"cvss_score":9.8,"headline":"Windows DNS Client Remote Code Execution Vulnerability","id":"CVE-2026-41096","kev_date_added":null,"published":"2026-05-12"},{"cvss_score":9.3,"headline":"Windows Hyper-V Elevation of Privilege Vulnerability","id":"CVE-2026-40402","kev_date_added":null,"published":"2026-05-12"}],"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":"partial"},"state":"PUBLISHED","updated":"2026-07-30","vendors":["Microsoft"]},"summary":"An authorized local attacker can exploit an untrusted pointer dereference in Windows VBS Enclave to disclose sensitive information.","url":"https://insights.sbomify.com/CVE-2026-20819/"}