RLSA-2026:65147

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Source

https://errata.rockylinux.org/RLSA-2026:65147

Import Source

https://storage.googleapis.com/resf-osv-data/RLSA-2026:65147.json

JSON Data

https://api.test.osv.dev/v1/vulns/RLSA-2026:65147

Upstream

CVE-2025-31936

CVE-2025-35973

Published

2026-09-09T06:01:04Z

Modified

2026-09-09T06:30:16Z

Severity

7.2 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N CVSS Calculator

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.

Database specific

{
    "license": "CC-BY-4.0",
    "license_url": "https://creativecommons.org/licenses/by/4.0/",
    "source_advisory": "RHSA-2026:65147"
}

References

Credits

- Rocky Enterprise Software Foundation
- Red Hat

Affected packages

Rocky Linux:8 / microcode_ctl

Package

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

Affected ranges

Type

ECOSYSTEM

Events

Introduced

Fixed

4:20260812-1.el8_10

Database specific

Show details

{
    "yum_repository": "BaseOS"
}

Database specific

source

"https://storage.googleapis.com/resf-osv-data/RLSA-2026:65147.json"