Description
Improper Isolation or Compartmentalization in the stream cache mechanism for some Intel(R) Processors may allow an authenticated user to potentially enable escalation of privilege via local access.
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 | 3.20250812.1 | — |
| Debian 13 | intel-microcode | 3.20250812.1~deb13u1 | DSA-6030-1 |
| Debian 12 | intel-microcode | 3.20250812.1~deb12u1 | DSA-6030-1 |
| Debian 11 | intel-microcode | 3.20250812.1~deb11u1 | DLA-4347-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 25.10 | intel-microcode | 3.20250812.0ubuntu0.25.10.1 | USN-7866-1 |
| Ubuntu 24.04 LTS | intel-microcode | 3.20250812.0ubuntu0.24.04.1 | USN-7866-1 |
| Ubuntu 22.04 LTS | intel-microcode | 3.20250812.0ubuntu0.22.04.1 | USN-7866-1 |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | intel-microcode | 3.20250812.0ubuntu0.20.04.1+esm1 | USN-7866-1 |
| Ubuntu Pro 18.04 LTS | intel-microcode | 3.20250812.0ubuntu0.18.04.1+esm1 | USN-7866-1 |
| Ubuntu Pro 16.04 LTS | intel-microcode | 3.20250812.0ubuntu0.16.04.1+esm1 | USN-7866-1 |
| Ubuntu Pro 14.04 LTS | intel-microcode | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | ucode-intel | 20250812-150200.59.1 | SUSE-SU-2025:03053-1 |
| SLES 15 SP6 | ucode-intel | 20250812-150200.59.1 | SUSE-SU-2025:03053-1 |
| SLES 15 SP5 | ucode-intel | 20250812-150200.59.1 | SUSE-SU-2025:03053-1 |
| SLES 15 SP4 | ucode-intel | 20250812-150200.59.1 | SUSE-SU-2025:03053-1 |
| SLES 15 SP3 | ucode-intel | 20250812-150200.59.1 | SUSE-SU-2025:03053-1 |
Show 18 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP5 | ucode-intel | 20250812-155.1 | SUSE-SU-2025:03052-1 |
| SLES 11 SP4 | microcode_ctl | 1.17-102.83.87.1 | SUSE-SU-2025:03116-1 |
| SLES for SAP 15 SP5 | ucode-intel | 20250812-150200.59.1 | SUSE-SU-2025:03053-1 |
| SLES for SAP 15 SP4 | ucode-intel | 20250812-150200.59.1 | SUSE-SU-2025:03053-1 |
| SLES for SAP 15 SP3 | ucode-intel | 20250812-150200.59.1 | SUSE-SU-2025:03053-1 |
| SLE Micro 6.1 | ucode-intel | 20250812-slfo.1.1_1.1 | SUSE-SU-2025:20691-1 |
| SLE Micro 6.0 | ucode-intel | 20250812-1.1 | SUSE-SU-2025:20715-1 |
| SLE Micro 5.5 | ucode-intel | 20250812-150200.59.1 | SUSE-SU-2025:03053-1 |
| SLE Micro 5.4 | ucode-intel | 20250812-150200.59.1 | SUSE-SU-2025:03053-1 |
| SLE Micro 5.3 | ucode-intel | 20250812-150200.59.1 | SUSE-SU-2025:03053-1 |
| SLE Micro 5.2 | ucode-intel | 20250812-150200.59.1 | SUSE-SU-2025:03053-1 |
| SLE Micro 5.1 | ucode-intel | 20250812-150200.59.1 | SUSE-SU-2025:03053-1 |
| SLE HPC 15 SP5 | ucode-intel | 20250812-150200.59.1 | SUSE-SU-2025:03053-1 |
| SLE HPC 15 SP4 | ucode-intel | 20250812-150200.59.1 | SUSE-SU-2025:03053-1 |
| SLE HPC 15 SP3 | ucode-intel | 20250812-150200.59.1 | SUSE-SU-2025:03053-1 |
| SUSE Manager Server LTS 4.3 | ucode-intel | 20250812-150200.59.1 | SUSE-SU-2025:03053-1 |
| SUSE Manager Proxy LTS 4.3 | ucode-intel | 20250812-150200.59.1 | SUSE-SU-2025:03053-1 |
| SUSE Enterprise Storage 7.1 | ucode-intel | 20250812-150200.59.1 | SUSE-SU-2025:03053-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | ucode-intel | 20250812-1.1 | openSUSE-SU-2025:15491-1 |
| openSUSE Leap 15.6 | ucode-intel | 20250812-150200.59.1 | SUSE-SU-2025:03053-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | intel-ucode | 20250812-r0 | — |
| Alpine v3.23 | intel-ucode | 20250812-r0 | — |
| Alpine v3.22 | intel-ucode | 20250812-r0 | — |
| Alpine v3.21 | intel-ucode | 20250812-r0 | — |
| Alpine v3.20 | intel-ucode | 20250812-r0 | — |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | intel-ucode | 20250812-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | microcode_ctl | 2:2.1-53.amzn2023.0.12 | ALAS2023-2025-1189 |
| Amazon Linux 2 | microcode_ctl | 2:2.1-47.amzn2.4.24 | ALAS2-2025-2994 |
Advisories 12
- USN-7866-1 intel-microcode vulnerabilities Ubuntu Security Notices (USN) · Jun 25, 2026
- openSUSE-SU-2025:15491-1 ucode-intel-20250812-1.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:20691-1 Security update for ucode-intel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:20715-1 Security update for ucode-intel SUSE / openSUSE Security Updates · Mar 23, 2026
- WID-SEC-2025-1785 Intel Prozessoren: Mehrere Schwachstellen BSI CERT-Bund (WID) · Mar 11, 2026
- SUSE-SU-2025:03116-1 Security update for microcode_ctl SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:03053-1 Security update for ucode-intel SUSE / openSUSE Security Updates · Feb 4, 2026
- DLA-4347-1 intel-microcode - security update Debian Security (DSA / DLA) · Oct 25, 2025
- DSA-6030-1 intel-microcode - security update Debian Security (DSA / DLA) · Oct 22, 2025
- ALAS2-2025-2994 Important: microcode_ctl security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Sep 16, 2025
- ALAS2023-2025-1189 Important: microcode_ctl security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Sep 15, 2025
- SUSE-SU-2025:03052-1 Security update for ucode-intel SUSE / openSUSE Security Updates · Sep 3, 2025