{"id":"CVE-2025-27463","title":"[This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] The Windows PV drivers expose various facilities to userspace","summary":"[This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] The Windows PV drivers expose various facilities to userspace. Several of these have no security descriptor,…","severity":"none","cwe":["CWE-276"],"published":"2026-07-09","updated":"2026-09-29","sourceUpdated":"2026-09-29T19:10:00.160","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-27463","references":[{"url":"https://xenbits.xen.org/xsa/advisory-468.html","label":"security@xen.org"}],"tags":["nvd"],"epss":0.00158,"epssPercentile":0.04283,"ingestedAt":"2026-09-29T19:44:04.104Z","slug":"CVE-2025-27463","body":"## Overview\n\n[This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] The Windows PV drivers expose various facilities to userspace. Several of these have no security descriptor, and are therefore fully accessible to unprivileged users. These are: 1. XenCons, CVE-2025-27462 2. XenIface, CVE-2025-27463 3. XenBus, CVE-2025-27464\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}