Description
Improper handling of values for some Intel(R) Processors within Ring 0: Kernel, Hypervisor and Bare Metal OS may allow an escalation of privilege. Authorized 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 require 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 (high), integrity (high) and availability (none) impacts.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | Intel(R) Processors | See references | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | intel-microcode | 3.20260925.1 | — |
| Debian 13 | intel-microcode | No fix yet | — |
| Debian 12 | intel-microcode | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | intel-microcode | No fix yet | — |
| Ubuntu 26.04 LTS | intel-microcode | No fix yet | — |
| Ubuntu 24.04 LTS | intel-microcode | No fix yet | — |
| Ubuntu 22.04 LTS | intel-microcode | No fix yet | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | intel-microcode | No fix yet | — |
| Ubuntu Pro 18.04 LTS | intel-microcode | No fix yet | — |
| Ubuntu Pro 16.04 LTS | intel-microcode | No fix yet | — |
| Ubuntu Pro 14.04 LTS | intel-microcode | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10 | microcode_ctl | 4:20260812-0.el10_2 | RHSA-2026:67979 |
| RHEL 9 | microcode_ctl | 4:20260210-1.20260812.1.el9_8 | RHSA-2026:68011 |
| RHEL 8 | microcode_ctl | 4:20260812-1.el8_10 | RHSA-2026:65147 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 10 | microcode_ctl | 4:20260812-0.el10_2 | ALSA-2026:67979 |
| AlmaLinux 9 | microcode_ctl | 4:20260210-1.20260812.1.el9_8 | ALSA-2026:68011 |
| AlmaLinux 8 | microcode_ctl | 4:20260812-1.el8_10 | ALSA-2026:65147 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 10 | microcode_ctl | 4:20260812-0.el10_2 | RLSA-2026:67979 |
| Rocky Linux 9 | microcode_ctl | 4:20260210-1.20260812.1.el9_8 | RLSA-2026:97521, RLSA-2026:68011 |
| Rocky Linux 8 | microcode_ctl | 4:20260812-1.el8_10 | RLSA-2026:65147 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | ucode-intel | 20260812-150200.68.1 | SUSE-SU-2026:4025-1 |
| SLES 15 SP6 | ucode-intel | 20260812-150200.68.1 | SUSE-SU-2026:4025-1 |
| SLES 15 SP5 | ucode-intel | 20260812-150200.68.1 | SUSE-SU-2026:4025-1 |
| SLES 15 SP4 | ucode-intel | 20260812-150200.68.1 | SUSE-SU-2026:4025-1 |
| SLES 12 SP5 | ucode-intel | 20260812-164.1 | SUSE-SU-2026:3917-1 |
Show 14 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 11 SP4 | microcode_ctl | 1.17-102.83.98.1 | SUSE-SU-2026:4019-1 |
| SLES for SAP 16.0 | ucode-intel | 20260812-160000.1.1 | SUSE-SU-2026:23602-1 |
| SLES for SAP 15 SP6 | ucode-intel | 20260812-150200.68.1 | SUSE-SU-2026:4025-1 |
| SLES for SAP 15 SP5 | ucode-intel | 20260812-150200.68.1 | SUSE-SU-2026:4025-1 |
| SLES for SAP 15 SP4 | ucode-intel | 20260812-150200.68.1 | SUSE-SU-2026:4025-1 |
| SLES 16.0 | ucode-intel | 20260812-160000.1.1 | SUSE-SU-2026:23602-1 |
| SLE Micro 6.2 | ucode-intel | 20260812-160000.1.1 | SUSE-SU-2026:23459-1 |
| SLE Micro 6.1 | ucode-intel | 20260812-slfo.1.1_1.1 | SUSE-SU-2026:23539-1 |
| SLE Micro 6.0 | ucode-intel | 20260812-1.1 | SUSE-SU-2026:23449-1 |
| SLE Micro 5.5 | ucode-intel | 20260812-150200.68.1 | SUSE-SU-2026:4025-1 |
| SLE Micro 5.4 | ucode-intel | 20260812-150200.68.1 | SUSE-SU-2026:4025-1 |
| SLE Micro 5.3 | ucode-intel | 20260812-150200.68.1 | SUSE-SU-2026:4025-1 |
| SLE HPC 15 SP5 | ucode-intel | 20260812-150200.68.1 | SUSE-SU-2026:4025-1 |
| SLE HPC 15 SP4 | ucode-intel | 20260812-150200.68.1 | SUSE-SU-2026:4025-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | ucode-intel | 20260812-1.1 | openSUSE-SU-2026:11599-1 |
| openSUSE Leap 16.0 | ucode-intel | 20260812-160000.1.1 | openSUSE-SU-2026:21736-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | intel-ucode | 20260812-r0 | — |
| Alpine v3.23 | intel-ucode | 20260812-r0 | — |
| Alpine v3.22 | intel-ucode | 20260812-r0 | — |
| Alpine v3.21 | intel-ucode | 20260812-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | microcode_ctl | 2:2.1-53.amzn2023.0.16 | ALAS2023-2026-2080 |
| Amazon Linux 2 | microcode_ctl | 2:2.1-47.amzn2.4.28 | ALAS2-2026-3872 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 10 | microcode_ctl | 4:20260812-1.0.2.el10_2 | ELSA-2026-67979 |
| Oracle Linux 9 | microcode_ctl | 4:20260812-1.0.2.el9_8 | ELSA-2026-68011 |
Advisories 24
- RLSA-2026:97521 Important: microcode_ctl security, bug fix, and enhancement update Rocky Linux Security Advisories · Nov 13, 2026
- WID-SEC-2026-4494 Red Hat Enterprise Linux (microcode_ctl): Schwachstelle ermöglicht Privilegieneskalation BSI CERT-Bund (WID) · Nov 10, 2026
- ALSA-2026:68011 Important: microcode_ctl security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:67979 Important: microcode_ctl security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:65147 Important: microcode_ctl security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2026:67979 Red Hat Security Advisory: microcode_ctl security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- RHSA-2026:68011 Red Hat Security Advisory: microcode_ctl security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- RHSA-2026:65147 Red Hat Security Advisory: microcode_ctl security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- ELSA-2026-67979 Important: microcode_ctl security, bug fix, and enhancement update (Oracle Linux 10) Oracle Linux Security Advisories (ELSA) · Oct 13, 2026
- ELSA-2026-68011 Important: microcode_ctl security, bug fix, and enhancement update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Oct 12, 2026
- SUSE-SU-2026:23602-1 Security update for ucode-intel SUSE / openSUSE Security Updates · Sep 29, 2026
- SUSE-SU-2026:23459-1 Security update for ucode-intel SUSE / openSUSE Security Updates · Sep 22, 2026
- RLSA-2026:67979 Important: microcode_ctl security, bug fix, and enhancement update Rocky Linux Security Advisories · Sep 17, 2026
- RLSA-2026:68011 Important: microcode_ctl security, bug fix, and enhancement update Rocky Linux Security Advisories · Sep 17, 2026
- SUSE-SU-2026:23539-1 Security update for ucode-intel SUSE / openSUSE Security Updates · Sep 15, 2026
- SUSE-SU-2026:23449-1 Security update for ucode-intel SUSE / openSUSE Security Updates · Sep 14, 2026
- SUSE-SU-2026:4019-1 Security update for microcode_ctl SUSE / openSUSE Security Updates · Sep 13, 2026
- SUSE-SU-2026:4025-1 Security update for ucode-intel SUSE / openSUSE Security Updates · Sep 13, 2026
- SUSE-SU-2026:3917-1 Security update for ucode-intel SUSE / openSUSE Security Updates · Sep 10, 2026
- openSUSE-SU-2026:21736-1 Security update for ucode-intel SUSE / openSUSE Security Updates · Sep 9, 2026
- RLSA-2026:65147 Important: microcode_ctl security, bug fix, and enhancement update Rocky Linux Security Advisories · Sep 9, 2026
- ALAS2-2026-3872 Important: microcode_ctl security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Aug 31, 2026
- ALAS2023-2026-2080 Important: microcode_ctl security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Aug 31, 2026
- openSUSE-SU-2026:11599-1 ucode-intel-20260812-1.1 on GA media SUSE / openSUSE Security Updates · Aug 26, 2026