CVE-2025-31648 SUSE CVE security@suse.de SUSE Security Team SUSE CVE-2025-31648 Interim 1 1 2026-03-05T01:09:14Z current 2026-03-05T01:09:14Z 2026-03-05T01:09:14Z cve-database/bin/generate-cvrf-cve.pl 2020-12-27T01:00:00Z CVE-2025-31648 Improper handling of values in the microcode flow for some Intel(R) Processor Family may allow an escalation of privilege. Startup code and smm adversary with a privileged user combined with a high complexity attack may enable escalation of privilege. This result may potentially occur via local access when attack requirements are present with special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (low), integrity (low) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (low), integrity (low) and availability (none) impacts. The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). https://lists.suse.com/pipermail/sle-security-updates/2026-February/024442.html E-Mail link for SUSE-SU-2026:0668-1 https://lists.suse.com/pipermail/sle-security-updates/2026-February/024441.html E-Mail link for SUSE-SU-2026:0669-1 https://lists.suse.com/pipermail/sle-security-updates/2026-February/024440.html E-Mail link for SUSE-SU-2026:0670-1 https://lists.suse.com/pipermail/sle-security-updates/2026-February/024500.html E-Mail link for SUSE-SU-2026:20522-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings SUSE Linux Enterprise Module for Basesystem 15 SP7 SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS SUSE Linux Enterprise Module for Basesystem 15 SP7 SUSE Linux Enterprise Micro 5.2 SUSE Linux Enterprise Micro 5.3 SUSE Linux Enterprise Micro 5.4 SUSE Linux Enterprise Micro 5.5 SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE SUSE Linux Enterprise Server 12 SP2-LTSS SUSE Linux Enterprise Server 12 SP3-TERADATA SUSE Linux Enterprise Server 12 SP4-LTSS SUSE Linux Enterprise Server 12 SP5-LTSS SUSE Linux Enterprise Server 15 SP1-LTSS SUSE Linux Enterprise Server 15 SP2-LTSS SUSE Linux Enterprise Server 15 SP3-LTSS SUSE Linux Enterprise Server 15 SP4-LTSS SUSE Linux Enterprise Server 15 SP4-TERADATA SUSE Linux Enterprise Server 15 SP5-LTSS SUSE Linux Enterprise Server 15 SP6-LTSS SUSE Linux Enterprise Module for Basesystem 15 SP7 SUSE Linux Enterprise Server 16.0 SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 SUSE Linux Enterprise Server Teradata 12 SP3 SUSE Linux Enterprise Server for SAP Applications 15 SP4 SUSE Linux Enterprise Server for SAP Applications 15 SP5 SUSE Linux Enterprise Server for SAP Applications 15 SP6 SUSE Linux Enterprise Module for Basesystem 15 SP7 SUSE Linux Enterprise Server for SAP applications 16.0 SUSE Linux Micro 6.0 SUSE Linux Micro 6.1 SUSE Manager Proxy LTS 4.3 SUSE Manager Retail Branch Server LTS 4.3 SUSE Manager Server LTS 4.3 openSUSE Leap 15.6 openSUSE Tumbleweed microcode_ctl-1.17-102.83.90.1 ucode-intel ucode-intel-20260210-1.1 ucode-intel-20260210-13.145.1 ucode-intel-20260210-150200.62.1 ucode-intel-20260210-158.1 ucode-intel-20260210-150200.62.1 as a component of SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS ucode-intel-20260210-150200.62.1 as a component of SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS ucode-intel-20260210-150200.62.1 as a component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS ucode-intel-20260210-150200.62.1 as a component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS ucode-intel-20260210-150200.62.1 as a component of SUSE Linux Enterprise Micro 5.2 ucode-intel-20260210-150200.62.1 as a component of SUSE Linux Enterprise Micro 5.3 ucode-intel-20260210-150200.62.1 as a component of SUSE Linux Enterprise Micro 5.4 ucode-intel-20260210-150200.62.1 as a component of SUSE Linux Enterprise Micro 5.5 ucode-intel-20260210-150200.62.1 as a component of SUSE Linux Enterprise Module for Basesystem 15 SP7 microcode_ctl-1.17-102.83.90.1 as a component of SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE ucode-intel-20260210-13.145.1 as a component of SUSE Linux Enterprise Server 12 SP3-TERADATA ucode-intel-20260210-158.1 as a component of SUSE Linux Enterprise Server 12 SP5-LTSS ucode-intel-20260210-150200.62.1 as a component of SUSE Linux Enterprise Server 15 SP4-LTSS ucode-intel-20260210-150200.62.1 as a component of SUSE Linux Enterprise Server 15 SP4-TERADATA ucode-intel-20260210-150200.62.1 as a component of SUSE Linux Enterprise Server 15 SP5-LTSS ucode-intel-20260210-150200.62.1 as a component of SUSE Linux Enterprise Server 15 SP6-LTSS ucode-intel-20260210-158.1 as a component of SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 ucode-intel-20260210-150200.62.1 as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP4 ucode-intel-20260210-150200.62.1 as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP5 ucode-intel-20260210-150200.62.1 as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP6 ucode-intel-20260210-1.1 as a component of SUSE Linux Micro 6.0 ucode-intel-20260210-150200.62.1 as a component of SUSE Manager Proxy LTS 4.3 ucode-intel-20260210-150200.62.1 as a component of SUSE Manager Retail Branch Server LTS 4.3 ucode-intel-20260210-150200.62.1 as a component of SUSE Manager Server LTS 4.3 ucode-intel-20260210-150200.62.1 as a component of openSUSE Leap 15.6 ucode-intel-20260210-1.1 as a component of openSUSE Tumbleweed ucode-intel as a component of SUSE Linux Enterprise Server 12 SP2-LTSS ucode-intel as a component of SUSE Linux Enterprise Server 12 SP4-LTSS ucode-intel as a component of SUSE Linux Enterprise Server 15 SP1-LTSS ucode-intel as a component of SUSE Linux Enterprise Server 15 SP2-LTSS ucode-intel as a component of SUSE Linux Enterprise Server 15 SP3-LTSS ucode-intel as a component of SUSE Linux Enterprise Server 16.0 ucode-intel as a component of SUSE Linux Enterprise Server Teradata 12 SP3 ucode-intel as a component of SUSE Linux Enterprise Server for SAP applications 16.0 ucode-intel as a component of SUSE Linux Micro 6.1 Improper handling of values in the microcode flow for some Intel(R) Processor Family may allow an escalation of privilege. Startup code and smm adversary with a privileged user combined with a high complexity attack may enable escalation of privilege. This result may potentially occur via local access when attack requirements are present with special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (low), integrity (low) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (low), integrity (low) and availability (none) impacts. CVE-2025-31648 SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS:ucode-intel-20260210-150200.62.1 SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS:ucode-intel-20260210-150200.62.1 SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS:ucode-intel-20260210-150200.62.1 SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS:ucode-intel-20260210-150200.62.1 SUSE Linux Enterprise Micro 5.2:ucode-intel-20260210-150200.62.1 SUSE Linux Enterprise Micro 5.3:ucode-intel-20260210-150200.62.1 SUSE Linux Enterprise Micro 5.4:ucode-intel-20260210-150200.62.1 SUSE Linux Enterprise Micro 5.5:ucode-intel-20260210-150200.62.1 SUSE Linux Enterprise Module for Basesystem 15 SP7:ucode-intel-20260210-150200.62.1 SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE:microcode_ctl-1.17-102.83.90.1 SUSE Linux Enterprise Server 12 SP3-TERADATA:ucode-intel-20260210-13.145.1 SUSE Linux Enterprise Server 12 SP5-LTSS:ucode-intel-20260210-158.1 SUSE Linux Enterprise Server 15 SP4-LTSS:ucode-intel-20260210-150200.62.1 SUSE Linux Enterprise Server 15 SP4-TERADATA:ucode-intel-20260210-150200.62.1 SUSE Linux Enterprise Server 15 SP5-LTSS:ucode-intel-20260210-150200.62.1 SUSE Linux Enterprise Server 15 SP6-LTSS:ucode-intel-20260210-150200.62.1 SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:ucode-intel-20260210-158.1 SUSE Linux Enterprise Server for SAP Applications 15 SP4:ucode-intel-20260210-150200.62.1 SUSE Linux Enterprise Server for SAP Applications 15 SP5:ucode-intel-20260210-150200.62.1 SUSE Linux Enterprise Server for SAP Applications 15 SP6:ucode-intel-20260210-150200.62.1 SUSE Linux Micro 6.0:ucode-intel-20260210-1.1 SUSE Manager Proxy LTS 4.3:ucode-intel-20260210-150200.62.1 SUSE Manager Retail Branch Server LTS 4.3:ucode-intel-20260210-150200.62.1 SUSE Manager Server LTS 4.3:ucode-intel-20260210-150200.62.1 openSUSE Leap 15.6:ucode-intel-20260210-150200.62.1 openSUSE Tumbleweed:ucode-intel-20260210-1.1 moderate 3.9 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N