Upstream information
Description
[This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.]XAPI can configure different users with different roles, using Role
Based Access Control. For more details, see:
https://docs.xenserver.com/en-us/xencenter/current-release/rbac-overview.html#rbac-roles
The pool-admin role is fully privileged. Notably, users with this role
can also SSH into the host as root.
The other administrator roles are pool-operator, vm-power-admin and
vm-admin, each of which are authorised to configure and manage various
aspects of the system.
Some settings are inadequately restricted, and can be set by a lower
privilege of administrator than expected.
* CVE-2026-23559: A vm-admin can set VBD.other_config:backend-local and
turn arbitrary files in dom0 into VDIs (virtual disks) and give said
disks to a VM they control. This is an arbitrary read and/or modify
of files in dom0.
* CVE-2026-23560: A vm-admin can set VM.other-config:is_system_domain
and mark a VM as a system domain. System domains are ignored and
left running during certain other host/pool operations, and may be
hidden from view in tooling.
* CVE-2026-23561: A vm-admin can set VM.other_config:storage_driver_domain
and mark a VM as the storage domain for a particular host storage
connection (PBD). Shutting down the VM can cause the PBD to be
erroneously marked as unplugged when it is not.
* CVE-2026-23562: Configuration of PCI passthrough is normally
restricted to the pool-admin role. However one API was missing this
check, allowing a vm-admin access to unintended host hardware.
* CVE-2026-42486: A vm-admin can set the VM.platform:hvm_serial
parameter, which should be restricted to the pool-admin role, as it
can allow arbitrary dom0 file write.
Upstream Security Advisories:
Other Security Trackers
SUSE information
Overall state of this security issue: Analysis
This issue is currently rated as having moderate severity.
| CVSS detail | CNA (security@xen.org) |
|---|---|
| Base Score | 9.4 |
| Vector | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| Attack Vector | Local |
| Attack Complexity | Low |
| Attack Requirements | None |
| Privileges Required | None |
| User Interaction | None |
| Vulnerable System Confidentiality Impact | High |
| Vulnerable System Integrity Impact | High |
| Vulnerable System Availability Impact | High |
| Subsequent System Confidentiality Impact | High |
| Subsequent System Integrity Impact | High |
| Subsequent System Availability Impact | High |
| CVSSv4 Version | 4.0 |
Note from the SUSE Security Team on the xen package
This issue likely only affects the XEN hypervisor itself, unless otherwise stated. The userland utilities in -tools and libraries in -libs are shipped together with the xen hypervisor as they are built from one source and do not contain hypervisor specific fixes. SUSE Bugzilla entry: 1263566 [NEW] No SUSE Security Announcements cross referenced.Status of this issue by product and package
Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.
| Product(s) | Source package | State |
|---|---|---|
| Products under general support and receiving all security fixes. | ||
| SUSE Linux Enterprise Desktop 15 SP7 | xen | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 SP7 | xen | Analysis |
| SUSE Linux Enterprise Micro 5.3 | xen | Analysis |
| SUSE Linux Enterprise Micro 5.4 | xen | Analysis |
| SUSE Linux Enterprise Micro 5.5 | xen | Analysis |
| SUSE Linux Enterprise Module for Basesystem 15 SP7 | xen | Analysis |
| SUSE Linux Enterprise Module for Server Applications 15 SP7 | xen | Analysis |
| SUSE Linux Enterprise Server 15 SP7 | xen | Analysis |
| SUSE Linux Enterprise Server for SAP Applications 15 SP7 | xen | Analysis |
| Products under Long Term Service Pack support and receiving important and critical security fixes. | ||
| SUSE Linux Enterprise High Performance Computing 15 SP4 | xen | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | xen | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 SP5 | xen | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | xen | Analysis |
| SUSE Linux Enterprise Module for Basesystem 15 SP4 | xen | Analysis |
| SUSE Linux Enterprise Module for Basesystem 15 SP5 | xen | Analysis |
| SUSE Linux Enterprise Module for Basesystem 15 SP6 | xen | Analysis |
| SUSE Linux Enterprise Module for Server Applications 15 SP4 | xen | Analysis |
| SUSE Linux Enterprise Module for Server Applications 15 SP5 | xen | Analysis |
| SUSE Linux Enterprise Module for Server Applications 15 SP6 | xen | Analysis |
| SUSE Linux Enterprise Server 12 SP5 | xen | Analysis |
| SUSE Linux Enterprise Server 12 SP5-LTSS | xen | Unsupported |
| SUSE Linux Enterprise Server 12 SP5-LTSS Extended Security | xen | Analysis |
| SUSE Linux Enterprise Server 15 SP4 | xen | Analysis |
| SUSE Linux Enterprise Server 15 SP4-LTSS | xen | Analysis |
| SUSE Linux Enterprise Server 15 SP5 | xen | Analysis |
| SUSE Linux Enterprise Server 15 SP5-LTSS | xen | Analysis |
| SUSE Linux Enterprise Server 15 SP6 | xen | Analysis |
| SUSE Linux Enterprise Server 15 SP6-LTSS | xen | Analysis |
| SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | xen | Analysis |
| SUSE Linux Enterprise Server for SAP Applications 12 SP5 | xen | Analysis |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | xen | Analysis |
| SUSE Manager Proxy 4.3 | xen | Analysis |
| SUSE Manager Proxy LTS 4.3 | xen | Analysis |
| SUSE Manager Retail Branch Server 4.3 | xen | Analysis |
| SUSE Manager Retail Branch Server LTS 4.3 | xen | Analysis |
| SUSE Manager Server 4.3 | xen | Analysis |
| SUSE Manager Server LTS 4.3 | xen | Analysis |
| Products past their end of life and not receiving proactive updates anymore. | ||
| HPE Helion OpenStack 8 | xen | Analysis |
| SUSE CaaS Platform 3.0 | xen | Analysis |
| SUSE CaaS Platform 4.0 | xen | Analysis |
| SUSE Enterprise Storage 6 | xen | Analysis |
| SUSE Enterprise Storage 7 | xen | Analysis |
| SUSE Enterprise Storage 7.1 | xen | Analysis |
| SUSE Linux Enterprise Desktop 12 SP3 | xen | Analysis |
| SUSE Linux Enterprise Desktop 12 SP4 | xen | Analysis |
| SUSE Linux Enterprise Desktop 15 SP1 | xen | Analysis |
| SUSE Linux Enterprise Desktop 15 SP2 | xen | Analysis |
| SUSE Linux Enterprise Desktop 15 SP3 | xen | Analysis |
| SUSE Linux Enterprise Desktop 15 SP4 | xen | Analysis |
| SUSE Linux Enterprise Desktop 15 SP5 | xen | Analysis |
| SUSE Linux Enterprise Desktop 15 SP6 | xen | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 SP1 | xen | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS | xen | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS | xen | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 SP2 | xen | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS | xen | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS | xen | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 SP3 | xen | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS | xen | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS | xen | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | xen | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | xen | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 SP6 | xen | Analysis |
| SUSE Linux Enterprise Micro 5.0 | xen | Analysis |
| SUSE Linux Enterprise Micro 5.1 | xen | Analysis |
| SUSE Linux Enterprise Micro 5.2 | xen | Unsupported |
| SUSE Linux Enterprise Module for Basesystem 15 SP1 | xen | Analysis |
| SUSE Linux Enterprise Module for Basesystem 15 SP2 | xen | Analysis |
| SUSE Linux Enterprise Module for Basesystem 15 SP3 | xen | Analysis |
| SUSE Linux Enterprise Module for Server Applications 15 SP1 | xen | Analysis |
| SUSE Linux Enterprise Module for Server Applications 15 SP2 | xen | Analysis |
| SUSE Linux Enterprise Module for Server Applications 15 SP3 | xen | Analysis |
| SUSE Linux Enterprise Real Time 15 SP2 | xen | Analysis |
| SUSE Linux Enterprise Real Time 15 SP3 | xen | Analysis |
| SUSE Linux Enterprise Real Time 15 SP4 | xen | Analysis |
| SUSE Linux Enterprise Server 12 SP3 | xen | Analysis |
| SUSE Linux Enterprise Server 12 SP3-BCL | xen | Analysis |
| SUSE Linux Enterprise Server 12 SP3-ESPOS | xen | Analysis |
| SUSE Linux Enterprise Server 12 SP3-LTSS | xen | Analysis |
| SUSE Linux Enterprise Server 12 SP4 | xen | Analysis |
| SUSE Linux Enterprise Server 12 SP4-ESPOS | xen | Analysis |
| SUSE Linux Enterprise Server 12 SP4-LTSS | xen | Unsupported |
| SUSE Linux Enterprise Server 15 SP1 | xen | Analysis |
| SUSE Linux Enterprise Server 15 SP1-BCL | xen | Analysis |
| SUSE Linux Enterprise Server 15 SP1-LTSS | xen | Analysis |
| SUSE Linux Enterprise Server 15 SP2 | xen | Analysis |
| SUSE Linux Enterprise Server 15 SP2-BCL | xen | Analysis |
| SUSE Linux Enterprise Server 15 SP2-LTSS | xen | Analysis |
| SUSE Linux Enterprise Server 15 SP3 | xen | Analysis |
| SUSE Linux Enterprise Server 15 SP3-BCL | xen | Analysis |
| SUSE Linux Enterprise Server 15 SP3-LTSS | xen | Analysis |
| SUSE Linux Enterprise Server for SAP Applications 12 SP3 | xen | Analysis |
| SUSE Linux Enterprise Server for SAP Applications 12 SP4 | xen | Analysis |
| SUSE Linux Enterprise Server for SAP Applications 15 SP1 | xen | Analysis |
| SUSE Linux Enterprise Server for SAP Applications 15 SP2 | xen | Analysis |
| SUSE Linux Enterprise Server for SAP Applications 15 SP3 | xen | Analysis |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | xen | Analysis |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | xen | Analysis |
| SUSE Linux Enterprise Software Development Kit 12 SP3 | xen | Analysis |
| SUSE Linux Enterprise Software Development Kit 12 SP4 | xen | Analysis |
| SUSE Linux Enterprise Software Development Kit 12 SP5 | xen | Analysis |
| SUSE Manager Proxy 4.0 | xen | Analysis |
| SUSE Manager Proxy 4.1 | xen | Analysis |
| SUSE Manager Proxy 4.2 | xen | Analysis |
| SUSE Manager Retail Branch Server 4.0 | xen | Analysis |
| SUSE Manager Retail Branch Server 4.1 | xen | Analysis |
| SUSE Manager Retail Branch Server 4.2 | xen | Analysis |
| SUSE Manager Server 4.0 | xen | Analysis |
| SUSE Manager Server 4.1 | xen | Analysis |
| SUSE Manager Server 4.2 | xen | Analysis |
| SUSE OpenStack Cloud 8 | xen | Analysis |
| SUSE OpenStack Cloud 9 | xen | Analysis |
| SUSE OpenStack Cloud Crowbar 8 | xen | Analysis |
| SUSE OpenStack Cloud Crowbar 9 | xen | Analysis |
| openSUSE Leap 15.3 | xen | Analysis |
| openSUSE Leap 15.4 | xen | Analysis |
| openSUSE Leap 15.5 | xen | Analysis |
| openSUSE Leap 15.6 | xen | Unsupported |
| openSUSE Leap Micro 5.2 | xen | Analysis |
| openSUSE Leap Micro 5.3 | xen | Analysis |
| openSUSE Leap Micro 5.4 | xen | Analysis |
| openSUSE Leap Micro 5.5 | xen | Analysis |
SUSE Timeline for this CVE
CVE page created: Tue Apr 28 22:00:06 2026CVE page last modified: Thu Jul 9 21:28:07 2026