microcode_ctl: The microcode_ctl packages provide microcode updates for Intel and AMD processors. Security Fix(es): * kernel: hype...
CVE-2025-31936 is fixed in 3 products on 1 platform, first by RHSA-2026:67979, released August 11, 2026. It is not reported as exploited. Patch Radar priority: High.
The microcode_ctl packages provide microcode updates for Intel and AMD processors. Security Fix(es): * kernel: hypervisor: Intel Processors: Privilege escalation in Ring 0 via improper value handling (CVE-2025-35973) * kernel: microcode_ctl: Intel Xeon 6 Processors: Privilege escalation via improper memory range handling in SMM (CVE-2025-31936) Bug Fix(es) and Enhancement(s): * [RHEL 8] Update Intel CPU microcode to the latest version (JIRA:RHEL-240770) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| intel-microcode · Debian 14 | 3.20260925.1 | DEBIAN-CVE-2025-31936 | Aug 11, 2026 |
| microcode_ctl · RHEL 10 | 20260812-0.el10_2 | RHSA-2026:67979 | Aug 11, 2026 |
| microcode_ctl · RHEL 8 | 4:20260812-1.el8_10 | RHSA-2026:65147 | Sep 13, 2026 |
| microcode_ctl · RHEL 9 | 4:20260210-1.20260812.1.el9_8 | RHSA-2026:68011 | Sep 19, 2026 |
| microcode_ctl · almalinux 10 | 4:20260812-0.el10_2 | ALSA-2026:67979 | Sep 16, 2026 |
| microcode_ctl · almalinux 8 | 4:20260812-1.el8_10 | ALSA-2026:65147 | Sep 8, 2026 |
| microcode_ctl · almalinux 9 | 4:20260210-1.20260812.1.el9_8 | ALSA-2026:68011 | Sep 16, 2026 |
| microcode_ctl · amzn 2023 | 2:2.1-53.amzn2023.0.16 | ALAS2023-2026-2080 | Aug 31, 2026 |
| microcode_ctl · ol 10 | 4:20260812-1.0.2.el10_2 | ELSA-2026-67979 | Nov 7, 2026 |
| microcode_ctl · ol 8 | 4:20260812-1.0.3.el8_10 | ELSA-2026-65147-0 | Sep 16, 2026 |
| microcode_ctl · ol 9 | 4:20260812-1.0.2.el9_8 | ELSA-2026-68011 | Nov 7, 2026 |
| microcode_ctl · rocky 10 | 4:20260812-0.el10_2 | RLSA-2026:67979 | Sep 17, 2026 |
| microcode_ctl · rocky 8 | 4:20260812-1.el8_10 | RLSA-2026:65147 | Sep 9, 2026 |
| microcode_ctl · rocky 9 | 4:20260210-1.20260812.1.el9_8 | RLSA-2026:68011 | Sep 17, 2026 |
| ucode-intel · opensuse-leap 16.0 | 20260812-160000.1.1 | OPENSUSE-SU-2026:21736-1 | Sep 2, 2026 |
| ucode-intel · sles 15.6 | 20260812-150200.68.1 | SUSE-SU-2026:4025-1 | Sep 7, 2026 |
| ucode-intel · sles 15.7 | 20260812-150200.68.1 | SUSE-SU-2026:4025-1 | Sep 7, 2026 |
| ucode-intel · sles 16.0 | 20260812-160000.1.1 | SUSE-SU-2026:23602-1 | Sep 21, 2026 |
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