{"cve":"CVE-2024-31146","nvd":{"published":"2024-09-25T11:15:12.220","modified":"2026-06-17T07:27:52.223","status":"Analyzed","description":"When multiple devices share resources and one of them is to be passed\nthrough to a guest, security of the entire system and of respective\nguests individually cannot really be guaranteed without knowing\ninternals of any of the involved guests.  Therefore such a configuration\ncannot really be security-supported, yet making that explicit was so far\nmissing.\n\nResources the sharing of which is known to be problematic include, but\nare not limited to\n- - PCI Base Address Registers (BARs) of multiple devices mapping to the\n  same page (4k on x86),\n- - INTx lines.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H","score":7.5},"cwes":["CWE-400"],"references":["https://xenbits.xenproject.org/xsa/advisory-461.html","http://www.openwall.com/lists/oss-security/2024/08/14/3","http://xenbits.xen.org/xsa/advisory-461.html"],"products":["xen:xen"],"source":"nvd","synced_at":"2026-10-19T21:54:38.012257375+00:00"},"epss":{"cve":"CVE-2024-31146","score":0.00235,"percentile":0.14557,"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."]}