{"cve":"CVE-2020-14394","nvd":{"published":"2022-08-17T21:15:07.913","modified":"2026-06-17T02:54:41.353","status":"Modified","description":"An infinite loop flaw was found in the USB xHCI controller emulation of QEMU while computing the length of the Transfer Request Block (TRB) Ring. This flaw allows a privileged guest user to hang the QEMU process on the host, resulting in a denial of service.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L","score":3.2},"cwes":["CWE-835"],"references":["https://bugzilla.redhat.com/show_bug.cgi?id=1908004","https://gitlab.com/qemu-project/qemu/-/issues/646","https://lists.debian.org/debian-lts-announce/2023/03/msg00013.html","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I7J5IRXJYLELW7D43A75LOWRUE5EU54O/","https://bugzilla.redhat.com/show_bug.cgi?id=1908004"],"products":["fedoraproject:extra_packages_for_enterprise_linux","fedoraproject:fedora","qemu:qemu","redhat:enterprise_linux","redhat:openstack_platform"],"source":"nvd","synced_at":"2026-10-19T21:34:18.502168378+00:00"},"epss":{"cve":"CVE-2020-14394","score":0.0039,"percentile":0.33132,"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."]}