RHEA-2023:6637: microcode_ctl Red Hat
CVSS: 7.5v3.1HighPublished
Published 18-03-2025Last modified 07-08-2026
Vulnerability summary
RHEA-2023:6637 is a high (CVSS 7.5) vulnerability in microcode_ctl Red Hat.
CVSS score
7.5/10
010
High · v3.1 (OSV · Red hat), selected by version preferenceEPSS score
Not scored
0%100%
No EPSS score yetKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 2 · Downstream 0Timeline
- 18-03-2025PublishedVulnerability first disclosed.
- 07-08-2026Last modifiedVulnerability information updated.
Description
Red Hat Enhancement Advisory: microcode_ctl bug fix and enhancement update
CVSS metrics
1 score · 1 source · 1 versionHigh 7.5Preferred score · OSV · Red hat (Ecosystem advisory) · calculated from vector
CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:LSourcesSingle source
EPSS trend
No EPSS score has been published for this record yet.
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Redhat1 product
- microcode_ctl< 4:20230808-2.el9
1 vendor · 1 product
