RHSA-2026:6888 - Security Advisory

Topic

An update for microcode_ctl is now available for Red Hat Enterprise Linux 10.0 Extended Update Support.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

The microcode_ctl packages provide microcode updates for Intel and AMD processors.

Security Fix(es):

• Intel (R): From CVEorg collector (CVE-2025-35998)

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.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Affected Products

• Red Hat Enterprise Linux for x86_64 - Extended Update Support 10.0 x86_64
• Red Hat Enterprise Linux for x86_64 - 4 years of updates 10.0 x86_64

Fixes

• BZ - 2438523 - CVE-2025-35998 Intel (R): From CVEorg collector
• RHEL-162251 - [10.0z]: Update microcode_ctl to 20260227

CVEs

• CVE-2025-35998

References

• https://access.redhat.com/security/updates/classification/#important