ALSA-2026:65147 Important: microcode_ctl security, bug fix, and enhancement update

The microcodectl packages provide microcode updates for Intel and AMD processors. Security Fixes: kernel: hypervisor: Intel Processors: Privilege escalation in Ring 0 via improper value handling CVE-2025-35973 kernel: microcodectl: Intel Xeon 6 Processors: Privilege escalation via improper memory...

RHEL 8 : microcode_ctl (RHSA-2026:65147)

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2026:65147 advisory. The microcodectl packages provide microcode updates for Intel and AMD processors. Security Fixes: kernel: hypervisor: Intel Processors:...

Security update for microcode_ctl

This update for microcodectl fixes the following issues: Intel CPU Microcode was updated to the 20260812 release bsc1274785 Removed MTL/06-aa-04/c0 due to functional issues observed when loading the MCU in some platforms. Intel CPU Microcode was updated to the 20260811 release bsc1274785 Security...

SUSE-SU-2026:4019-1 Security update for microcode_ctl

This update for microcodectl fixes the following issues: - Intel CPU Microcode was updated to the 20260812 release bsc1274785 - Removed MTL/06-aa-04/c0 due to functional issues observed when loading the MCU in some platforms. - Intel CPU Microcode was updated to the 20260811 release bsc1274785 -...

Oracle Linux 10 / 8 / 9 : microcode_ctl (ELSA-2026-500239)

The remote Oracle Linux 10 / 8 / 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the ELSA-2026-500239 advisory. - Security advisories: https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01379.html CVE-2025-31936...

Amazon Linux 2023 : microcode_ctl (ALAS2023-2026-2080)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-2080 advisory. Improper handling of overlap between protected memory ranges for some IntelR XeonR 6 processors when using IntelR TDX within SMM may allow an escalation of privilege. SMM adversary with a...

Amazon Linux 2 : microcode_ctl, --advisory ALAS2-2026-3872 (ALAS-2026-3872)

The version of microcodectl installed on the remote host is prior to 2.1-47. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2026-3872 advisory. Improper handling of overlap between protected memory ranges for some IntelR XeonR 6 processors when using IntelR TDX...

TencentOS Server 4: microcode_ctl (TSSA-2026:0851)

The version of Tencent Linux installed on the remote TencentOS Server 4 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2026:0851 advisory. Package updates are available for TencentOS Server 4 that fix the following vulnerabilities...

OESA-2026-3408 microcode_ctl security update

This is a tool to transform and deploy microcode update for x86 CPUs. Security Fixes: Improper handling of overlap between protected memory ranges for some IntelR XeonR 6 processors when using IntelR TDX within SMM may allow an escalation of privilege. SMM adversary with a privileged user combine...

Security update for microcode_ctl

This update for microcodectl fixes the following issue: CVE-2025-35979: shared microarchitectural predictor state in VMX non-root operation could lead to data leaks bsc1265189. Changes for microcodectl: Intel CPU Microcode was updated to the 20260512 release bsc1265189: Update for various...

OESA-2026-2529 microcode_ctl security update

This is a tool to transform and deploy microcode update for x86 CPUs. Security Fixes: Exposure of sensitive information caused by shared microarchitectural predictor state that influences transient execution for some IntelR Processors within VMX non-root guest operation may allow an information...

OESA-2026-2461 microcode_ctl security update

This is a tool to transform and deploy microcode update for x86 CPUs. Security Fixes: Exposure of sensitive information caused by shared microarchitectural predictor state that influences transient execution for some IntelR Processors within VMX non-root guest operation may allow an information...

OESA-2026-2460 microcode_ctl security update

This is a tool to transform and deploy microcode update for x86 CPUs. Security Fixes: Exposure of sensitive information caused by shared microarchitectural predictor state that influences transient execution for some IntelR Processors within VMX non-root guest operation may allow an information...

OESA-2026-2459 microcode_ctl security update

This is a tool to transform and deploy microcode update for x86 CPUs. Security Fixes: Exposure of sensitive information caused by shared microarchitectural predictor state that influences transient execution for some IntelR Processors within VMX non-root guest operation may allow an information...

OESA-2026-2458 microcode_ctl security update

This is a tool to transform and deploy microcode update for x86 CPUs. Security Fixes: Exposure of sensitive information caused by shared microarchitectural predictor state that influences transient execution for some IntelR Processors within VMX non-root guest operation may allow an information...

Amazon Linux 2 : microcode_ctl, --advisory ALAS2-2026-3294 (ALAS-2026-3294)

The version of microcodectl installed on the remote host is prior to 2.1-47. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2026-3294 advisory. Improper handling of values in the microcode flow for some IntelR Processor Family may allow an escalation of privilege. Startu...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: microcode_ctl (UTSA-2026-016522)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-016522 advisory. Exposure of sensitive information caused by shared microarchitectural predictor state that influences transient execution for some Intel AtomR processors may allow a...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: microcode_ctl (UTSA-2026-015290)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-015290 advisory. Insufficient resource pool in the core management mechanism for some IntelR Processors may allow an authenticated user to potentially enable denial of service via...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: microcode_ctl (UTSA-2026-015074)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-015074 advisory. Incorrect behavior order for some IntelR Core Ultra Processors may allow an unauthenticated user to potentially enable information disclosure via physical access...

[SECURITY] Fedora 42 Update: microcode_ctl-2.1-70.1.fc42

The microcodectl utility is a companion to the microcode driver written by Tigran Aivazian . The microcode update is volatile and needs to be uploaded on each system boot i.e. it doesn't reflash your cpu permanently, reboot and it reverts back to the old microcode...