Description
Incorrect initialization of resource in the branch prediction unit for some Intel(R) Core™ Ultra Processors may allow an authenticated user to potentially enable information disclosure via local access.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | Intel(R) Core™ Ultra 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 | 3.20250512.1 | — |
| Debian 13 | intel-microcode | 3.20250512.1 | — |
| Debian 12 | intel-microcode | 3.20250512.1~deb12u1 | DSA-5924-1 |
| Debian 11 | intel-microcode | 3.20250512.1~deb11u1 | DLA-4170-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | intel-microcode | 3.20250512.0ubuntu0.24.04.1 | USN-7535-1 |
| Ubuntu 22.04 LTS | intel-microcode | 3.20250512.0ubuntu0.22.04.1 | USN-7535-1 |
| Ubuntu 20.04 LTS | intel-microcode | 3.20250512.0ubuntu0.20.04.1 | USN-7535-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 18.04 LTS | intel-microcode | 3.20250512.0ubuntu0.18.04.1+esm1 | USN-7535-1 |
| Ubuntu Pro 16.04 LTS | intel-microcode | 3.20250512.0ubuntu0.16.04.1+esm1 | USN-7535-1 |
| Ubuntu Pro 14.04 LTS | intel-microcode | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | microcode_ctl | 4:20250211-1.20250512.1.el9_6 | RHBA-2025:9433 |
| RHEL 8 | microcode_ctl | 4:20250512-1.el8_10 | RHSA-2025:10991 |
Show 12 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9.4 EUS | microcode_ctl | 4:20230808-2.20250512.1.el9_4 | RHSA-2025:10101 |
| RHEL 9.2 E4S | microcode_ctl | 4:20220809-2.20250512.1.el9_2 | RHSA-2025:10102 |
| RHEL 9.0 E4S | microcode_ctl | 4:20220207-1.20250512.1.el9_0 | RHSA-2025:10103 |
| RHEL 8.8 TUS | microcode_ctl | 4:20220809-2.20250512.1.el8_8 | RHSA-2025:10162 |
| RHEL 8.8 E4S | microcode_ctl | 4:20220809-2.20250512.1.el8_8 | RHSA-2025:10162 |
| RHEL 8.6 TUS | microcode_ctl | 4:20220207-1.20250512.1.el8_6 | RHSA-2025:10109 |
| RHEL 8.6 E4S | microcode_ctl | 4:20220207-1.20250512.1.el8_6 | RHSA-2025:10109 |
| RHEL 8.6 AUS | microcode_ctl | 4:20220207-1.20250512.1.el8_6 | RHSA-2025:10109 |
| RHEL 8.4 AUS | microcode_ctl | 4:20210216-1.20250512.1.el8_4 | RHSA-2025:10107 |
| RHEL 8.2 AUS | microcode_ctl | 4:20191115-4.20250512.1.el8_2 | RHSA-2025:10126 |
| RHEL 7.7 AUS | microcode_ctl | 2:2.1-53.26.el7_7.1 | RHSA-2025:10111 |
| RHEL 7 ELS | microcode_ctl | 2:2.1-73.24.el7_9 | RHSA-2025:10108 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 8 | microcode_ctl | 4:20250512-1.el8_10 | ALSA-2025:10991 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | microcode_ctl | 4:20250512-1.el8_10 | RLSA-2025:10991 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | ucode-intel | 20250512-150200.56.1 | SUSE-SU-2025:01651-2 |
| SLES 15 SP6 | ucode-intel | 20250512-150200.56.1 | SUSE-SU-2025:01651-1 |
| SLES 15 SP5 | ucode-intel | 20250512-150200.56.1 | SUSE-SU-2025:01651-1 |
| SLES 15 SP4 | ucode-intel | 20250512-150200.56.1 | SUSE-SU-2025:01651-1 |
| SLES 15 SP3 | ucode-intel | 20250512-150200.56.1 | SUSE-SU-2025:01651-1 |
Show 18 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP5 | ucode-intel | 20250512-152.1 | SUSE-SU-2025:01650-1 |
| SLES 11 SP4 | microcode_ctl | 1.17-102.83.84.1 | SUSE-SU-2025:1567-1 |
| SLES for SAP 15 SP5 | ucode-intel | 20250512-150200.56.1 | SUSE-SU-2025:01651-1 |
| SLES for SAP 15 SP4 | ucode-intel | 20250512-150200.56.1 | SUSE-SU-2025:01651-1 |
| SLES for SAP 15 SP3 | ucode-intel | 20250512-150200.56.1 | SUSE-SU-2025:01651-1 |
| SLE Micro 6.1 | ucode-intel | 20250512-slfo.1.1_1.1 | SUSE-SU-2025:20424-1 |
| SLE Micro 6.0 | ucode-intel | 20250512-1.1 | SUSE-SU-2025:20410-1 |
| SLE Micro 5.5 | ucode-intel | 20250512-150200.56.1 | SUSE-SU-2025:01651-1 |
| SLE Micro 5.4 | ucode-intel | 20250512-150200.56.1 | SUSE-SU-2025:01651-1 |
| SLE Micro 5.3 | ucode-intel | 20250512-150200.56.1 | SUSE-SU-2025:01651-1 |
| SLE Micro 5.2 | ucode-intel | 20250512-150200.56.1 | SUSE-SU-2025:01651-1 |
| SLE Micro 5.1 | ucode-intel | 20250512-150200.56.1 | SUSE-SU-2025:01651-1 |
| SLE HPC 15 SP5 | ucode-intel | 20250512-150200.56.1 | SUSE-SU-2025:01651-1 |
| SLE HPC 15 SP4 | ucode-intel | 20250512-150200.56.1 | SUSE-SU-2025:01651-1 |
| SLE HPC 15 SP3 | ucode-intel | 20250512-150200.56.1 | SUSE-SU-2025:01651-1 |
| SUSE Manager Server 4.3 | ucode-intel | 20250512-150200.56.1 | SUSE-SU-2025:01651-1 |
| SUSE Manager Proxy 4.3 | ucode-intel | 20250512-150200.56.1 | SUSE-SU-2025:01651-1 |
| SUSE Enterprise Storage 7.1 | ucode-intel | 20250512-150200.56.1 | SUSE-SU-2025:01651-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | spectre-meltdown-checker | 26.36.0602723-1.1 | openSUSE-SU-2026:11242-1 |
| openSUSE Tumbleweed | ucode-intel | 20250512-1.1 | openSUSE-SU-2025:15093-1 |
| openSUSE Leap 15.6 | ucode-intel | 20250512-150200.56.1 | SUSE-SU-2025:01651-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | intel-ucode | 20250512-r0 | — |
| Alpine v3.23 | intel-ucode | 20250512-r0 | — |
| Alpine v3.22 | intel-ucode | 20250512-r0 | — |
| Alpine v3.21 | intel-ucode | 20250512-r0 | — |
| Alpine v3.20 | intel-ucode | 20250512-r0 | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | intel-ucode | 20250512-r0 | — |
| Alpine v3.18 | intel-ucode | 20250512-r0 | — |
Advisories 26
- USN-7535-1 intel-microcode vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- ALSA-2025:10991 Moderate: microcode_ctl security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2025:10991 Red Hat Security Advisory: microcode_ctl security update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- RHSA-2025:10162 Red Hat Security Advisory: microcode_ctl security update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- RHSA-2025:10111 Red Hat Security Advisory: microcode_ctl security update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- RHSA-2025:10126 Red Hat Security Advisory: microcode_ctl security update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- RHSA-2025:10109 Red Hat Security Advisory: microcode_ctl security update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- RHSA-2025:10107 Red Hat Security Advisory: microcode_ctl security update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- RHSA-2025:10108 Red Hat Security Advisory: microcode_ctl security update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- RHSA-2025:10102 Red Hat Security Advisory: microcode_ctl security update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- RHSA-2025:10103 Red Hat Security Advisory: microcode_ctl security update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- RHSA-2025:10101 Red Hat Security Advisory: microcode_ctl security update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- RHBA-2025:9433 Red Hat Bug Fix Advisory: microcode_ctl bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- WID-SEC-2025-1001 Intel Prozessoren: Mehrere Schwachstellen ermöglichen Offenlegung von Informationen BSI CERT-Bund (WID) · Jul 13, 2026
- openSUSE-SU-2026:11242-1 spectre-meltdown-checker-26.36.0602723-1.1 on GA media SUSE / openSUSE Security Updates · Jul 10, 2026
- openSUSE-SU-2025:15093-1 ucode-intel-20250512-1.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:01651-2 Security update for ucode-intel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:20424-1 Security update for ucode-intel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:01651-1 Security update for ucode-intel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:20410-1 Security update for ucode-intel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:01650-1 Security update for ucode-intel SUSE / openSUSE Security Updates · Mar 23, 2026
- DSA-5924-1 intel-microcode - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-4170-1 intel-microcode - security update Debian Security (DSA / DLA) · Mar 9, 2026
- WID-SEC-2025-1905 IBM QRadar SIEM Komponente: Mehrere Schwachstellen BSI CERT-Bund (WID) · Mar 4, 2026
- SUSE-SU-2025:1567-1 Security update for microcode_ctl SUSE / openSUSE Security Updates · Feb 4, 2026
- RLSA-2025:10991 Moderate: microcode_ctl security update Rocky Linux Security Advisories · Jul 29, 2025