A guest with a PCI device assigned that has at least a BAR on the IO port space can trigger a BUG() in Xen.
https://xenbits.xenproject.org/xsa/advisory-510.html
http://xenbits.xen.org/xsa/advisory-510.html
http://www.openwall.com/lists/oss-security/2026/09/08/7
Source: Mitre, NVD
Published: 2026-09-08
Updated: 2026-09-08
Base Score: 5.6
Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:P/A:C
Severity: Medium
Base Score: 8.8
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Severity: High
EPSS: 0.0017