{"answers":{"affected":"It affects 4 products.","exploited":"There is no known exploitation of CVE-2026-66804 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-66804 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-66804 is a high-severity vulnerability in Microsoft Windows 10 22h2, published on 11 Aug 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-2026-66804 and fix it if it is affected.\n\nWhat it is: CVE-2026-66804 is a high-severity vulnerability in Microsoft Windows 10 22h2, published on 11 Aug 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-2026-66804 in the wild and no public exploit code.\n\nAffected product: Microsoft Windows 10 22h2. 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-2026-66804/ (Markdown: https://insights.sbomify.com/CVE-2026-66804/index.md)","id":"CVE-2026-66804","markdown":"https://insights.sbomify.com/CVE-2026-66804/index.md","name":"CVE-2026-66804","record":{"aliases":["GHSA-m9fr-m5pc-g6ww"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["privilege_escalation"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Windows Cross Device Service","requires_auth":"low_privilege","summary":"An authorized local attacker can elevate privileges due to improper access control in the Windows Cross Device Service.","user_interaction":"not_required","vuln_class":"privilege_escalation"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"microsoft","cpe":[{"product":"windows_10_22h2","vendor":"microsoft"},{"product":"windows_11_24h2","vendor":"microsoft"},{"product":"windows_11_25h2","vendor":"microsoft"},{"product":"windows_11_26h1","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-284","name":"Improper Access Control"}],"description":"Improper access control in Windows Cross Device Service allows an authorized attacker to elevate privileges locally.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2026-07-19","github_poc":4,"max_poc_stars":25,"metasploit":0,"nuclei":0,"refs":[{"date":"2026-08-13T01:42:43Z","kind":"github_poc","ref":"https://github.com/Rat5ak/CVE-2026-66804-CrossDevice-Service-EoP","stars":25,"title":"CVE-2026-66804 Windows Cross Device virtual camera EoP - Standard user to SYSTEM"},{"date":"2026-07-23T11:51:53Z","kind":"github_poc","ref":"https://github.com/DavidCarliez/CVE-2026-66804-CrossDevice-LPE","stars":16,"title":null},{"date":"2026-07-19T23:37:27Z","kind":"github_poc","ref":"https://github.com/ZeroDayVPN/CVE-2026-66804-CrossDevice-Service-EoP","stars":2,"title":"sadsadsa"},{"date":"2026-07-25T16:40:47Z","kind":"github_poc","ref":"https://github.com/CypherHippie/CVE-2026-66804","stars":1,"title":null}],"tier":"poc_unverified"},"has_fix":null,"headline":"Microsoft Windows Cross Device Service Elevation of Privilege Vulnerability","id":"CVE-2026-66804","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"microsoft:windows_10_22h2","products":["microsoft:windows_10_22h2","microsoft:windows_11_24h2","microsoft:windows_11_25h2","microsoft:windows_11_26h1"],"type":"privilege_escalation","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Microsoft SharePoint Server Remote Code Execution Vulnerability","id":"CVE-2026-66805"},"packages":[],"prev":{"headline":"Azure Cosmos DB Remote Code Execution Vulnerability","id":"CVE-2026-66803"},"products":["Windows 10 Version 22H2","Windows 11 Version 24H2","Windows 11 Version 25H2","Windows 11 version 26H1"],"published":"2026-08-11","related":[],"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)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-10-21","vendors":["Microsoft"]},"summary":"An authorized local attacker can elevate privileges due to improper access control in the Windows Cross Device Service.","url":"https://insights.sbomify.com/CVE-2026-66804/"}