Description
Insufficient control flow management in the Alias Checking Trusted Module (ACTM) firmware for some Intel(R) Xeon(R) processors may allow a privileged user to potentially enable escalation of privilege via local access.
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 | 3.20250812.1 | — |
| 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 | — |
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.amzn2023.0.13 | ALAS2023-2025-1190 |
| Amazon Linux 2 | microcode_ctl | 2:2.1-47.amzn2.4.25 | ALAS2-2025-2993 |
Advisories 6
- USN-7866-1 intel-microcode vulnerabilities Ubuntu Security Notices (USN) · Jun 25, 2026
- WID-SEC-2025-1785 Intel Prozessoren: Mehrere Schwachstellen BSI CERT-Bund (WID) · Mar 11, 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
- ALAS2-2025-2993 Important: microcode_ctl security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Sep 16, 2025
- ALAS2023-2025-1190 Important: microcode_ctl security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Sep 15, 2025