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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | Intel(R) Xeon(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 | — |
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 Leap 16.0 | ucode-intel | 20260812-160000.1.1 | openSUSE-SU-2026:21736-1 |
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 8 | microcode_ctl | 4:20260812-1.0.3.el8_10 | ELSA-2026-500239 |
Advisories 12
- WID-SEC-2026-2772 Intel Prozessor: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 9, 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
- ELSA-2026-500239 Important: microcode_ctl security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Sep 16, 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-2026:4025-1 Security update for ucode-intel SUSE / openSUSE Security Updates · Sep 13, 2026
- SUSE-SU-2026:4019-1 Security update for microcode_ctl 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
- 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