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OpenAdvisories
High RLSA-2026:97521 1 CVE

Important: microcode_ctl security, bug fix, and enhancement update

Published Nov 13, 2026 · Updated Nov 13, 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)

Bug Fix(es) and Enhancement(s):

* [Rocky Linux 9] Update Intel CPU microcode to the latest version (JIRA:Rocky Linux-240771)

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.

Additional Changes:

For detailed information on changes in this release, see the Rocky Linux 9 Release Notes linked from the References section.

Fixed packages 1

ReleasePackageFixed in
Rocky Linux · 9 microcode_ctl 4:20260812-1.el9

Vulnerabilities 1

References

  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2514104
  • advisory
    https://access.redhat.com/errata/RHSA-2026:97521