RHSA-2026:67721: kernel-rt Red Hat
Published
Published 16-09-2026Last modified 20-10-2026
Vulnerability summary
RHSA-2026:67721 is a high (CVSS 8.1) vulnerability in kernel-rt Red Hat.
Priority
Routine
Not severe (CVSS 8.1, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?CVSS score
8.1/10
010
High · v3.1 (OSV · Red hat), selected by version preferenceEPSS scoreNot scoredRisk metrics not yet published.
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded
Advisory lineage
Upstream 11 · Downstream 0Timeline
- 16-09-2026PublishedVulnerability first disclosed.
- 20-10-2026Last modifiedVulnerability information updated.
Description
Red Hat Security Advisory: kernel-rt security, bug fix, and enhancement update
CVSS metrics
1 score · 1 source · 1 versionHigh 8.1Preferred score · OSV · Red hat (Ecosystem advisory) · calculated from vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:NSourcesSingle source
EPSS trend
No EPSS score has been published for this record yet.
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Version check
Known conditions: network-reachable, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Redhat17 products
- kernel-rt< 0:5.14.0-284.191.1.rt14.476.el9_2
- kernel-rt-core< 0:5.14.0-284.191.1.rt14.476.el9_2
- kernel-rt-debug< 0:5.14.0-284.191.1.rt14.476.el9_2
- kernel-rt-debug-core< 0:5.14.0-284.191.1.rt14.476.el9_2
- kernel-rt-debug-debuginfo< 0:5.14.0-284.191.1.rt14.476.el9_2
1 vendor · 17 products
