RLSA-2026:65147

    Dashboard / Vulnerabilities / RLSA-2026:65147

    RLSA-2026:65147

    Published: 9 Sept 2026Last Modified: 9 Sept 2026

    Summary: Important: microcode_ctl security, bug fix, and enhancement update

    Details: 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 8] Update Intel CPU microcode to the latest version (JIRA:Rocky Linux-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.

    References: https://errata.rockylinux.org/RLSA-2026:65147, https://bugzilla.redhat.com/show_bug.cgi?id=2514104, https://bugzilla.redhat.com/show_bug.cgi?id=2514115, https://access.redhat.com/errata/RHSA-2026:65147

    Affected packages

    Package

    Name: microcode_ctl

    Purl: pkg:rpm/rocky-linux/microcode_ctl?distro=rocky-linux-8&epoch=4

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -4:20260812-1.el8_10

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    RLSA-2026:65147 | CVE-DB