{"cve":"CVE-2025-58149","nvd":{"published":"2025-10-31T12:15:35.143","modified":"2026-10-19T13:10:00.110","status":"Analyzed","description":"When passing through PCI devices, the detach logic in libxl won't remove\naccess permissions to any 64bit memory BARs the device might have.  As a\nresult a domain can still have access any 64bit memory BAR when such\ndevice is no longer assigned to the domain.\n\nFor PV domains the permission leak allows the domain itself to map the memory\nin the page-tables.  For HVM it would require a compromised device model or\nstubdomain to map the leaked memory into the HVM domain p2m.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","score":7.5},"cwes":["CWE-672"],"references":["https://xenbits.xenproject.org/xsa/advisory-476.html","http://www.openwall.com/lists/oss-security/2025/10/24/1","http://xenbits.xen.org/xsa/advisory-476.html"],"products":["xen:xen"],"source":"nvd","synced_at":"2026-10-19T22:14:53.307938015+00:00"},"epss":{"cve":"CVE-2025-58149","score":0.00435,"percentile":0.37473,"date":"2026-10-25"},"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."]}