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High ALSA-2026:65147 2 CVEs

Important: microcode_ctl security, bug fix, and enhancement update

Published Sep 8, 2026 · Updated Oct 29, 2026

Summary

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):

* [AlmaLinux 8] Update Intel CPU microcode to the latest version (JIRA:AlmaLinux-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.

Fixed packages 1

ReleasePackageFixed in
AlmaLinux · 8 microcode_ctl 4:20260812-1.el8_10

Vulnerabilities 2

References

  • report
    https://access.redhat.com/security/cve/CVE-2025-31936
  • report
    https://access.redhat.com/security/cve/CVE-2025-35973
  • report
    https://bugzilla.redhat.com/2514104
  • report
    https://bugzilla.redhat.com/2514115
  • advisory
    https://errata.almalinux.org/8/ALSA-2026-65147.html