{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2025-27462 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2025-27462 is a critical missing authorization vulnerability in Xen Windows PV drivers, published on 9 Jul 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-2025-27462 and fix it if it is affected.\n\nWhat it is: CVE-2025-27462 is a critical missing authorization vulnerability in Xen Windows PV drivers, published on 9 Jul 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-2025-27462 in the wild and no public exploit code.\n\nAffected product: Xen Windows PV drivers. 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-2025-27462/ (Markdown: https://insights.sbomify.com/CVE-2025-27462/index.md)","id":"CVE-2025-27462","markdown":"https://insights.sbomify.com/CVE-2025-27462/index.md","name":"CVE-2025-27462","record":{"aliases":["GHSA-8q95-g4m7-2crp"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["privilege_escalation","security_bypass"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Windows PV drivers","requires_auth":"none","summary":"Unprivileged users can access XenCons device due to missing security descriptors, potentially leading to privilege escalation or security bypass.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"XEN","cpe":[],"cvss":{"score":9.4,"severity":"critical","source":"cna","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","version":"4.0"},"cwes":[{"id":"CWE-276","name":"Incorrect Default Permissions"}],"description":"[This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.]\n\nThe Windows PV drivers expose various facilities to userspace.  Several\nof these have no security descriptor, and are therefore fully accessible\nto unprivileged users.  These are:\n\n  1. XenCons,  CVE-2025-27462\n  2. XenIface, CVE-2025-27463\n  3. XenBus,   CVE-2025-27464","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"WinPVDrivers: Excessive permissions on user-exposed devices","id":"CVE-2025-27462","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"missing_authorization","year":"2025"},"n_packages":0,"n_references":1,"next":{"headline":"WinPVDrivers: Excessive permissions on user-exposed devices","id":"CVE-2025-27463"},"packages":[],"prev":{"headline":"CVE-2025-27461","id":"CVE-2025-27461"},"products":["Windows PV drivers"],"published":"2026-07-09","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"2026-07-09","vendors":["Xen"]},"summary":"Unprivileged users can access XenCons device due to missing security descriptors, potentially leading to privilege escalation or security bypass.","url":"https://insights.sbomify.com/CVE-2025-27462/"}