Issued at: 2026-09-17
Updated at: 2026-09-17
Advisory content derived from Red Hat RHSA-2026:68011, © Red Hat, Inc., used under CC BY 4.0, with modifications.
Synopsis
Important: microcode_ctl security, bug fix, and enhancement update
Description
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):
* [Rocky Linux 9.8.z] Update Intel CPU microcode to the latest version (JIRA:Rocky Linux-260496)
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.