Upstream information

CVE-2026-20901 at MITRE

Description

Improper input validation for some Intel(R) Xeon(R) processors within firmware may allow an escalation of privilege. Startup code and smm adversary with a privileged user combined with a high complexity attack may enable data alteration. This result may potentially occur via local access when attack requirements are present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (none) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (high) and availability (none) impacts.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having moderate severity.

CVSS v3 Scores
CVSS detail National Vulnerability Database
Base Score 5.3
Vector CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:N
Attack Vector Local
Attack Complexity High
Privileges Required High
User Interaction None
Scope Changed
Confidentiality Impact None
Integrity Impact High
Availability Impact None
CVSSv3 Version 3.1
CVSS v4 Scores
CVSS detail CNA (Intel)
Base Score 4
Vector CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:H/SA:N/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 High
Attack Requirements Present
Privileges Required High
User Interaction None
Vulnerable System Confidentiality Impact None
Vulnerable System Integrity Impact None
Vulnerable System Availability Impact None
Subsequent System Confidentiality Impact None
Subsequent System Integrity Impact High
Subsequent System Availability Impact None
CVSSv4 Version 4.0
No SUSE Bugzilla entries cross referenced.

No SUSE Security Announcements cross referenced.

List of released packages

Product(s) Fixed package version(s) References

List of packages in QA

Product(s) Package(s)
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS
  • ucode-intel >= 20260812-150200.68.1
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS
  • ucode-intel >= 20260812-150200.68.1
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS
  • ucode-intel >= 20260812-150200.68.1
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS
  • ucode-intel >= 20260812-150200.68.1
SUSE Linux Enterprise Micro 5.3
  • ucode-intel >= 20260812-150200.68.1
SUSE Linux Enterprise Micro 5.4
  • ucode-intel >= 20260812-150200.68.1
SUSE Linux Enterprise Micro 5.5
  • ucode-intel >= 20260812-150200.68.1
SUSE Linux Enterprise Module for Basesystem 15 SP7
  • ucode-intel >= 20260812-150200.68.1
SUSE Linux Enterprise Server 15 SP7
  • ucode-intel >= 20260812-150200.68.1
SUSE Linux Enterprise Desktop 15 SP7
  • ucode-intel >= 20260812-150200.68.1
SUSE Linux Enterprise Server for SAP Applications 15 SP7
  • ucode-intel >= 20260812-150200.68.1
SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE
  • microcode_ctl >= 1.17-102.83.98.1
SUSE Linux Enterprise Server 12 SP5-LTSS
  • ucode-intel >= 20260812-164.1
SUSE Linux Enterprise Server 12 SP5-LTSS
  • ucode-intel >= 20260812-164.1
SUSE Linux Enterprise Server 15 SP4-LTSS
  • ucode-intel >= 20260812-150200.68.1
SUSE Linux Enterprise Server 15 SP4-LTSS
  • ucode-intel >= 20260812-150200.68.1
SUSE Linux Enterprise Server 15 SP5-LTSS
  • ucode-intel >= 20260812-150200.68.1
SUSE Linux Enterprise Server 15 SP5-LTSS
  • ucode-intel >= 20260812-150200.68.1
SUSE Linux Enterprise Server 15 SP6-LTSS
  • ucode-intel >= 20260812-150200.68.1
SUSE Linux Enterprise Server 15 SP6-LTSS
  • ucode-intel >= 20260812-150200.68.1
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5
  • ucode-intel >= 20260812-164.1
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5
  • ucode-intel >= 20260812-164.1
SUSE Linux Enterprise Server for SAP Applications 15 SP4
  • ucode-intel >= 20260812-150200.68.1
SUSE Linux Enterprise Server for SAP Applications 15 SP5
  • ucode-intel >= 20260812-150200.68.1
SUSE Linux Enterprise Server for SAP Applications 15 SP6
  • ucode-intel >= 20260812-150200.68.1
SUSE Manager Proxy LTS 4.3
  • ucode-intel >= 20260812-150200.68.1
SUSE Manager Retail Branch Server LTS 4.3
  • ucode-intel >= 20260812-150200.68.1
SUSE Manager Server LTS 4.3
  • ucode-intel >= 20260812-150200.68.1

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 ucode-intel In progress
SUSE Linux Enterprise High Performance Computing 12 ucode-intel Affected
SUSE Linux Enterprise Micro 5.3 ucode-intel In progress
SUSE Linux Enterprise Micro 5.4 ucode-intel In progress
SUSE Linux Enterprise Micro 5.5 ucode-intel In progress
SUSE Linux Enterprise Module for Basesystem 15 SP7 ucode-intel In progress
SUSE Linux Enterprise Server 15 SP7 ucode-intel In progress
SUSE Linux Enterprise Server 16.0 ucode-intel In progress
SUSE Linux Enterprise Server 16.1 ucode-intel Released
SUSE Linux Enterprise Server for SAP Applications 15 SP7 ucode-intel In progress
SUSE Linux Enterprise Server for SAP applications 16.0 ucode-intel In progress
SUSE Linux Enterprise Server for SAP applications 16.1 ucode-intel Released
SUSE Linux Micro 6.2 ucode-intel In progress
Products under Long Term Service Pack support and receiving important and critical security fixes.
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS ucode-intel In progress
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS ucode-intel In progress
SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE microcode_ctl In progress
SUSE Linux Enterprise Server 12 SP5-LTSS ucode-intel In progress
SUSE Linux Enterprise Server 15 SP4-LTSS ucode-intel In progress
SUSE Linux Enterprise Server 15 SP5-LTSS ucode-intel In progress
SUSE Linux Enterprise Server 15 SP6-LTSS ucode-intel In progress
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 ucode-intel In progress
SUSE Linux Enterprise Server for SAP Applications 15 SP4 ucode-intel In progress
SUSE Linux Enterprise Server for SAP Applications 15 SP5 ucode-intel In progress
SUSE Linux Enterprise Server for SAP Applications 15 SP6 ucode-intel In progress
SUSE Manager Proxy LTS 4.3 ucode-intel In progress
SUSE Manager Retail Branch Server LTS 4.3 ucode-intel In progress
SUSE Manager Server LTS 4.3 ucode-intel In progress
Products past their end of life and not receiving proactive updates anymore.
HPE Helion OpenStack 8 ucode-intel Affected
SUSE CaaS Platform 3.0 ucode-intel Affected
SUSE Linux Enterprise Desktop 12 ucode-intel Affected
SUSE Linux Enterprise Desktop 12 SP1 ucode-intel Affected
SUSE Linux Enterprise Desktop 12 SP2 ucode-intel Affected
SUSE Linux Enterprise Desktop 12 SP3 ucode-intel Affected
SUSE Linux Enterprise Desktop 12 SP4 ucode-intel Affected
SUSE Linux Enterprise High Performance Computing 12 SP1 ucode-intel Affected
SUSE Linux Enterprise High Performance Computing 12 SP2 ucode-intel Affected
SUSE Linux Enterprise High Performance Computing 12 SP3 ucode-intel Affected
SUSE Linux Enterprise High Performance Computing 12 SP4 ucode-intel Affected
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS ucode-intel In progress
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS ucode-intel In progress
SUSE Linux Enterprise Point of Sale 12 SP2-CLIENT ucode-intel Affected
SUSE Linux Enterprise Server 12 ucode-intel Affected
SUSE Linux Enterprise Server 12 SP1 ucode-intel Affected
SUSE Linux Enterprise Server 12 SP1-LTSS ucode-intel Affected
SUSE Linux Enterprise Server 12 SP2 ucode-intel Affected
SUSE Linux Enterprise Server 12 SP2-BCL ucode-intel Affected
SUSE Linux Enterprise Server 12 SP2-ESPOS ucode-intel Affected
SUSE Linux Enterprise Server 12 SP2-LTSS ucode-intel Affected
SUSE Linux Enterprise Server 12 SP3 ucode-intel Affected
SUSE Linux Enterprise Server 12 SP3-BCL ucode-intel Affected
SUSE Linux Enterprise Server 12 SP3-ESPOS ucode-intel Affected
SUSE Linux Enterprise Server 12 SP3-LTSS ucode-intel Affected
SUSE Linux Enterprise Server 12 SP4 ucode-intel Affected
SUSE Linux Enterprise Server 12 SP4-ESPOS ucode-intel Affected
SUSE Linux Enterprise Server 12 SP4-LTSS ucode-intel Affected
SUSE Linux Enterprise Server 12-LTSS ucode-intel Affected
SUSE Linux Enterprise Server for SAP Applications 12 SP1 ucode-intel Affected
SUSE Linux Enterprise Server for SAP Applications 12 SP2 ucode-intel Affected
SUSE Linux Enterprise Server for SAP Applications 12 SP3 ucode-intel Affected
SUSE Linux Enterprise Server for SAP Applications 12 SP4 ucode-intel Affected
SUSE OpenStack Cloud 7 ucode-intel Affected
SUSE OpenStack Cloud 8 ucode-intel Affected
SUSE OpenStack Cloud 9 ucode-intel Affected
SUSE OpenStack Cloud Crowbar 8 ucode-intel Affected
SUSE OpenStack Cloud Crowbar 9 ucode-intel Affected

SUSE Timeline for this CVE

CVE page created: Tue Aug 25 11:27:00 2026
CVE page last modified: Fri Aug 28 19:28:15 2026