Linux · 
Oracle Linux · Security advisory · September 16, 2026
Oracle Linux · Security advisory · September 16, 2026ELSA-2026-500239: microcode_ctl security update
ELSA-2026-500239, released September 16, 2026, fixes 14 CVEs in microcode_ctl (version 4:20260812-1.0.2.el9_8). None of them is reported as exploited. Patch Radar priority: High.
High
CVEs closed
14
None rated Critical
Exploited
0
None reported
Highest CVSS
7.5
Base score, 0 to 10
Highest EPSS
0.0043
37th percentile
Priority of the 14 CVEs
Patch now 0
Urgent 0
High 4
Routine 10
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| microcode_ctl | ol 10 | 4:20260812-1.0.2.el9_8 |
| microcode_ctl | ol 8 | 4:20260812-1.0.2.el9_8 |
| microcode_ctl | ol 9 | 4:20260812-1.0.2.el9_8 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| High | CVE-2026-20715 | microcode_ctl: [4:20260812-1.0.3] - disable late update for 06-ad-01 - add support for UEK7/UEK8 and ueknext kernels - don't bother... | 7.5 | 0.0043 | None reported |
| High | CVE-2026-20885 | microcode_ctl: [4:20260812-1.0.3] - disable late update for 06-ad-01 - add support for UEK7/UEK8 and ueknext kernels - don't bother... | 7.2 | 0.0015 | None reported |
| High | CVE-2026-20898 | microcode_ctl: [4:20260812-1.0.3] - disable late update for 06-ad-01 - add support for UEK7/UEK8 and ueknext kernels - don't bother... | 7.2 | 0.0013 | None reported |
| High | CVE-2026-20713 | intel-microcode: Always-incorrect control flow implementation in some firmware for some Intel(R) Xeon(R) processors may allow an escal... | 7.5 | 0.0010 | None reported |
| Routine | CVE-2026-20708 | microcode_ctl: [4:20260812-1.0.3] - disable late update for 06-ad-01 - add support for UEK7/UEK8 and ueknext kernels - don't bother... | 4.4 | 0.0032 | None reported |
| Routine | CVE-2026-20712 | microcode_ctl: [4:20260812-1.0.3] - disable late update for 06-ad-01 - add support for UEK7/UEK8 and ueknext kernels - don't bother... | 6.0 | 0.0016 | None reported |
| Routine | CVE-2026-20734 | microcode_ctl: [4:20260812-1.0.3] - disable late update for 06-ad-01 - add support for UEK7/UEK8 and ueknext kernels - don't bother... | 4.4 | 0.0016 | None reported |
| Routine | CVE-2026-20705 | microcode_ctl: [4:20260812-1.0.3] - disable late update for 06-ad-01 - add support for UEK7/UEK8 and ueknext kernels - don't bother... | 5.3 | 0.0013 | None reported |
| Routine | CVE-2026-20775 | microcode_ctl: [4:20260812-1.0.3] - disable late update for 06-ad-01 - add support for UEK7/UEK8 and ueknext kernels - don't bother... | 5.3 | 0.0013 | None reported |
| Routine | CVE-2026-20917 | ucode-intel: This update for ucode-intel fixes the following issues: - Intel CPU Microcode was updated to the 20260812 release (b... | 5.3 | 0.0011 | None reported |
| Routine | CVE-2026-20760 | intel-microcode: Improper handling of overlap between protected memory ranges in some microcode for some Intel(R) Processors within Ri... | 5.5 | 0.0010 | None reported |
| Routine | CVE-2026-20901 | intel-microcode: Improper input validation for some Intel(R) Xeon(R) processors within firmware may allow an escalation of privilege | 5.3 | 0.0010 | None reported |
| Routine | CVE-2025-31356 | microcode_ctl: [4:20260812-1.0.3] - disable late update for 06-ad-01 - add support for UEK7/UEK8 and ueknext kernels - don't bother... | 6.1 | 0.0007 | None reported |
| Routine | CVE-2026-20707 | intel-microcode: Hardware logic contains race conditions for some 3rd Gen Intel(R) Xeon(R) Scalable Processors within Ring 3: unprivil... | 5.6 | 0.0007 | None reported |
Showing 1 to 14 of 14
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