{"cve":"CVE-2026-62428","nvd":{"published":"2026-07-28T13:19:01.713","modified":"2026-07-28T17:16:53.687","status":"Deferred","description":"When grant-copy operations are processed, the respective grant may or may\nnot already be in use by another operation (a mapping or another copy).\nFor all copy operations the referenced guest frame is looked up.  When\nanother operation is already active for the grant (the grant is \"pinned\"),\nwhat is being supplied back to actually carry out permission checks and\ncopy operation may not be consistent: The permission check may be carried\nout on a page different from the one involved in the copy.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H","score":7.8},"cwes":["CWE-367"],"references":["https://xenbits.xenproject.org/xsa/advisory-500.html","http://www.openwall.com/lists/oss-security/2026/07/28/16","http://xenbits.xen.org/xsa/advisory-500.html"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:46:40.600842820+00:00"},"epss":{"cve":"CVE-2026-62428","score":0.00115,"percentile":0.01545,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}