Upstream information

CVE-2026-8863 at MITRE

Description

Multiple Microsoft-sigend UEFI SHIM bootloaders are vulnerable to SecureBoot bypass. An attacker with administrative privileges or the ability to modify the boot process could use one of the vulnerable shim bootloaders to bypass Secure Boot protections and execute arbitrary code before the operating system loads. Specific UEFI DBX update is required to block these vulnerable boot loaders.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having moderate severity.

CVSS v3 Scores
CVSS detail CNA (CISA-ADP) SUSE
Base Score 7.8 6.7
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local Local
Attack Complexity Low Low
Privileges Required Low High
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact High High
Integrity Impact High High
Availability Impact High High
CVSSv3 Version 3.1 3.1
CVSS v4 Scores
CVSS detail SUSE
Base Score 8.4
Vector CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Attack Vector Local
Attack Complexity Low
Attack Requirements None
Privileges Required High
User Interaction None
Vulnerable System Confidentiality Impact High
Vulnerable System Integrity Impact High
Vulnerable System Availability Impact High
Subsequent System Confidentiality Impact None
Subsequent System Integrity Impact None
Subsequent System Availability Impact None
CVSSv4 Version 4.0
SUSE Bugzilla entry: 1268028 [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Please note that this evaluation state might be work in progress, incomplete or outdated.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.
SLES15-SP5-CHOST-BYOS-SAP-CCloud shim Not affected
SLES15-SP6-CHOST-BYOS shim Not affected
SLES15-SP6-CHOST-BYOS-Aliyun shim Not affected
SLES15-SP6-CHOST-BYOS-Azure shim Not affected
SLES15-SP6-CHOST-BYOS-EC2 shim Not affected
SLES15-SP6-CHOST-BYOS-GCE shim Not affected
SLES15-SP6-CHOST-BYOS-GDC shim Not affected
SLES15-SP6-CHOST-BYOS-SAP-CCloud shim Not affected
SLES15-SP7-CHOST-BYOS-Aliyun shim Not affected
SLES15-SP7-CHOST-BYOS-Azure shim Not affected
SLES15-SP7-CHOST-BYOS-EC2 shim Not affected
SLES15-SP7-CHOST-BYOS-GCE shim Not affected
SLES15-SP7-CHOST-BYOS-GDC shim Not affected
SLES15-SP7-CHOST-BYOS-SAP-CCloud shim Not affected
SUSE Linux Enterprise Desktop 15 SP7 shim Not affected
SUSE Linux Enterprise High Performance Computing 15 SP7 shim Not affected
SUSE Linux Enterprise Micro 5.3 shim Not affected
SUSE Linux Enterprise Micro 5.4 shim Not affected
SUSE Linux Enterprise Micro 5.5 shim Not affected
SUSE Linux Enterprise Module for Basesystem 15 SP7 shim Not affected
SUSE Linux Enterprise Server 15 SP7 shim Not affected
SUSE Linux Enterprise Server 16.0 shim Not affected
SUSE Linux Enterprise Server 16.1 shim Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP7 shim Not affected
SUSE Linux Enterprise Server for SAP applications 16.0 shim Not affected
SUSE Linux Enterprise Server for SAP applications 16.1 shim Not affected
SUSE Linux Micro 6.0 shim Not affected
SUSE Linux Micro 6.1 shim Not affected
SUSE Linux Micro 6.2 shim Not affected
openSUSE Leap 16.0 shim Not affected
Products under Long Term Service Pack support and receiving important and critical security fixes.
SLES15-SP3-CHOST-BYOS-Azure shim Not affected
SLES15-SP3-CHOST-BYOS-EC2 shim Not affected
SLES15-SP3-CHOST-BYOS-GCE shim Not affected
SLES15-SP3-CHOST-BYOS-SAP-CCloud shim Not affected
SLES15-SP4-CHOST-BYOS shim Not affected
SLES15-SP4-CHOST-BYOS-Azure shim Not affected
SLES15-SP4-CHOST-BYOS-EC2 shim Not affected
SLES15-SP4-CHOST-BYOS-GCE shim Not affected
SLES15-SP4-CHOST-BYOS-SAP-CCloud shim Not affected
SLES15-SP5-CHOST-BYOS-Azure shim Not affected
SLES15-SP5-CHOST-BYOS-EC2 shim Not affected
SLES15-SP5-CHOST-BYOS-GCE shim Not affected
SLES15-SP5-CHOST-BYOS-GDC shim Not affected
SUSE Linux Enterprise High Performance Computing 15 SP4 shim Not affected
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS shim Not affected
SUSE Linux Enterprise High Performance Computing 15 SP5 shim Not affected
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS shim Not affected
SUSE Linux Enterprise Module for Basesystem 15 SP4 shim Not affected
SUSE Linux Enterprise Module for Basesystem 15 SP5 shim Not affected
SUSE Linux Enterprise Module for Basesystem 15 SP6 shim Not affected
SUSE Linux Enterprise Server 12 SP5 shim Not affected
SUSE Linux Enterprise Server 12 SP5-LTSS shim Not affected
SUSE Linux Enterprise Server 12 SP5-LTSS Extended Security shim Not affected
SUSE Linux Enterprise Server 15 SP4 shim Not affected
SUSE Linux Enterprise Server 15 SP4-LTSS shim Not affected
SUSE Linux Enterprise Server 15 SP5 shim Not affected
SUSE Linux Enterprise Server 15 SP5-LTSS shim Not affected
SUSE Linux Enterprise Server 15 SP6 shim Not affected
SUSE Linux Enterprise Server 15 SP6-LTSS shim Not affected
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 shim Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP6 shim Not affected
SUSE Manager Proxy 4.3 shim Not affected
SUSE Manager Proxy LTS 4.3 shim Not affected
SUSE Manager Retail Branch Server 4.3 shim Not affected
SUSE Manager Retail Branch Server LTS 4.3 shim Not affected
SUSE Manager Server 4.3 shim Not affected
SUSE Manager Server LTS 4.3 shim Not affected
Products past their end of life and not receiving proactive updates anymore.
HPE Helion OpenStack 8 shim Not affected
SUSE CaaS Platform 3.0 shim Not affected
SUSE CaaS Platform 4.0 shim Not affected
SUSE Enterprise Storage 6 shim Not affected
SUSE Enterprise Storage 7 shim Not affected
SUSE Enterprise Storage 7.1 shim Not affected
SUSE Linux Enterprise Desktop 12 SP3 shim Not affected
SUSE Linux Enterprise Desktop 12 SP4 shim Not affected
SUSE Linux Enterprise Desktop 15 SP1 shim Not affected
SUSE Linux Enterprise Desktop 15 SP2 shim Not affected
SUSE Linux Enterprise Desktop 15 SP3 shim Not affected
SUSE Linux Enterprise Desktop 15 SP4 shim Not affected
SUSE Linux Enterprise Desktop 15 SP5 shim Not affected
SUSE Linux Enterprise Desktop 15 SP6 shim Not affected
SUSE Linux Enterprise High Performance Computing 15 SP1 shim Not affected
SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS shim Not affected
SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS shim Not affected
SUSE Linux Enterprise High Performance Computing 15 SP2 shim Not affected
SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS shim Not affected
SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS shim Not affected
SUSE Linux Enterprise High Performance Computing 15 SP3 shim Not affected
SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS shim Not affected
SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS shim Not affected
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS shim Not affected
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS shim Not affected
SUSE Linux Enterprise High Performance Computing 15 SP6 shim Not affected
SUSE Linux Enterprise Micro 5.0 shim Not affected
SUSE Linux Enterprise Micro 5.1 shim Not affected
SUSE Linux Enterprise Micro 5.2 shim Not affected
SUSE Linux Enterprise Module for Basesystem 15 SP1 shim Not affected
SUSE Linux Enterprise Module for Basesystem 15 SP2 shim Not affected
SUSE Linux Enterprise Module for Basesystem 15 SP3 shim Not affected
SUSE Linux Enterprise Real Time 15 SP2 shim Not affected
SUSE Linux Enterprise Real Time 15 SP3 shim Not affected
SUSE Linux Enterprise Real Time 15 SP4 shim Not affected
SUSE Linux Enterprise Server 12 SP3 shim Not affected
SUSE Linux Enterprise Server 12 SP3-BCL shim Not affected
SUSE Linux Enterprise Server 12 SP3-ESPOS shim Not affected
SUSE Linux Enterprise Server 12 SP3-LTSS shim Not affected
SUSE Linux Enterprise Server 12 SP4 shim Not affected
SUSE Linux Enterprise Server 12 SP4-ESPOS shim Not affected
SUSE Linux Enterprise Server 12 SP4-LTSS shim Not affected
SUSE Linux Enterprise Server 15 SP1 shim Not affected
SUSE Linux Enterprise Server 15 SP1-BCL shim Not affected
SUSE Linux Enterprise Server 15 SP1-LTSS shim Not affected
SUSE Linux Enterprise Server 15 SP2 shim Not affected
SUSE Linux Enterprise Server 15 SP2-BCL shim Not affected
SUSE Linux Enterprise Server 15 SP2-LTSS shim Not affected
SUSE Linux Enterprise Server 15 SP3 shim Not affected
SUSE Linux Enterprise Server 15 SP3-BCL shim Not affected
SUSE Linux Enterprise Server 15 SP3-LTSS shim Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP3 shim Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP4 shim Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP1 shim Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP2 shim Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP3 shim Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP4 shim Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP5 shim Not affected
SUSE Manager Proxy 4.0 shim Not affected
SUSE Manager Proxy 4.1 shim Not affected
SUSE Manager Proxy 4.2 shim Not affected
SUSE Manager Retail Branch Server 4.0 shim Not affected
SUSE Manager Retail Branch Server 4.1 shim Not affected
SUSE Manager Retail Branch Server 4.2 shim Not affected
SUSE Manager Server 4.0 shim Not affected
SUSE Manager Server 4.1 shim Not affected
SUSE Manager Server 4.2 shim Not affected
SUSE OpenStack Cloud 8 shim Not affected
SUSE OpenStack Cloud 9 shim Not affected
SUSE OpenStack Cloud Crowbar 8 shim Not affected
SUSE OpenStack Cloud Crowbar 9 shim Not affected
openSUSE Leap 15.3 shim Not affected
openSUSE Leap 15.4 shim Not affected
openSUSE Leap 15.5 shim Not affected
openSUSE Leap 15.6 shim Not affected
openSUSE Leap Micro 5.2 shim Not affected
openSUSE Leap Micro 5.3 shim Not affected
openSUSE Leap Micro 5.4 shim Not affected
openSUSE Leap Micro 5.5 shim Not affected
Products at an unknown state of their lifecycle.
SLES-CHOST-BYOS-Aliyun shim Not affected
SLES-CHOST-BYOS-Azure shim Not affected
SLES-CHOST-BYOS-EC2 shim Not affected
SLES-CHOST-BYOS-GCE shim Not affected
SLES-CHOST-BYOS-GDC shim Not affected
SLES-CHOST-BYOS-SAP-CCloud shim Not affected
Container Status
kiwi-templates-Minimal
kiwi-templates-Minimal-Cloud-sap
kiwi-templates-Minimal-MS-HyperV-sap
kiwi-templates-Minimal-VMware-sap
kiwi-templates-Minimal-kvm-and-xen-sap
suse/hpc/warewulf4-x86_64/sle-hpc-node
suse/manager/5.0/x86_64/server
suse/multi-linux-manager/5.1/x86_64/server
suse/multi-linux-manager/5.2/x86_64/server
suse/sle-micro-rancher/5.3
suse/sle-micro-rancher/5.4
suse/sle-micro/base-5.5
shimNot affected


SUSE Timeline for this CVE

CVE page created: Tue Jun 9 22:03:59 2026
CVE page last modified: Wed Jun 10 11:23:55 2026