hen passing through PCI devices, the detach logic in libxl won't remove access permissions to any 64bit memory BARs the device might have. As a result a domain can still have access any 64bit memory BAR when such device is no longer assigned to the domain. For PV domains the permission leak allows the domain itself to map the memory in the page-tables. For HVM it would require a compromised device model or stubdomain to map the leaked memory into the HVM domain p2m.
| Link | Resource |
|---|---|
| https://xenbits.xenproject.org/xsa/advisory-476.html | Patch Vendor Advisory |
| http://www.openwall.com/lists/oss-security/2025/10/24/1 | Mailing List Patch Third Party Advisory |
| http://xenbits.xen.org/xsa/advisory-476.html | Patch Vendor Advisory |
14 Jan 2026, 22:04
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Xen
Xen xen |
|
| CPE | cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:* | |
| References | () https://xenbits.xenproject.org/xsa/advisory-476.html - Patch, Vendor Advisory | |
| References | () http://www.openwall.com/lists/oss-security/2025/10/24/1 - Mailing List, Patch, Third Party Advisory | |
| References | () http://xenbits.xen.org/xsa/advisory-476.html - Patch, Vendor Advisory |
04 Nov 2025, 22:16
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
03 Nov 2025, 18:17
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
03 Nov 2025, 15:15
| Type | Values Removed | Values Added |
|---|---|---|
| CWE | CWE-672 |
31 Oct 2025, 18:15
| Type | Values Removed | Values Added |
|---|---|---|
| CWE | CWE-284 | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 7.5 |
31 Oct 2025, 12:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Published : 2025-10-31 12:15
Updated : 2026-01-14 22:04
NVD link : CVE-2025-58149
Mitre link : CVE-2025-58149
CVE.ORG link : CVE-2025-58149
JSON object : View
Operation on a Resource after Expiration or Release