RHSA-2026:66324
Advisory lineage Upstream: 15 Downstream: 0
Published: 10 Sept 2026, 10:17
Last modified:16 Sept 2026, 10:14
Vulnerability Summary
Overall Risk (default)
medium
28/100 CVSS Score
7 HIGH
3.1 (osv_red_hat)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected
Timeline
10 Sept 2026, 10:17
Published
Vulnerability first disclosed
16 Sept 2026, 10:14
Last Modified
Vulnerability information updated
Description
Red Hat Security Advisory: kernel-rt security, bug fix, and enhancement update
CVSS Metrics
- v3.1•HIGH•Score: 7CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Systems
- redhat•kernel-rt
< 0:4.18.0-553.162.1.rt7.503.el8_10 | < 0:4.18.0-553.162.1.rt7.503.el8_10
- redhat•kernel-rt-core
< 0:4.18.0-553.162.1.rt7.503.el8_10 | < 0:4.18.0-553.162.1.rt7.503.el8_10
- redhat•kernel-rt-debug
< 0:4.18.0-553.162.1.rt7.503.el8_10 | < 0:4.18.0-553.162.1.rt7.503.el8_10
- redhat•kernel-rt-debug-core
< 0:4.18.0-553.162.1.rt7.503.el8_10 | < 0:4.18.0-553.162.1.rt7.503.el8_10
- redhat•kernel-rt-debug-debuginfo
< 0:4.18.0-553.162.1.rt7.503.el8_10 | < 0:4.18.0-553.162.1.rt7.503.el8_10
- redhat•kernel-rt-debug-devel
< 0:4.18.0-553.162.1.rt7.503.el8_10 | < 0:4.18.0-553.162.1.rt7.503.el8_10
- redhat•kernel-rt-debug-kvm
< 0:4.18.0-553.162.1.rt7.503.el8_10
- redhat•kernel-rt-debug-modules
< 0:4.18.0-553.162.1.rt7.503.el8_10 | < 0:4.18.0-553.162.1.rt7.503.el8_10
- redhat•kernel-rt-debug-modules-extra
< 0:4.18.0-553.162.1.rt7.503.el8_10 | < 0:4.18.0-553.162.1.rt7.503.el8_10
- redhat•kernel-rt-debuginfo
< 0:4.18.0-553.162.1.rt7.503.el8_10 | < 0:4.18.0-553.162.1.rt7.503.el8_10
- redhat•kernel-rt-debuginfo-common-x86_64
< 0:4.18.0-553.162.1.rt7.503.el8_10 | < 0:4.18.0-553.162.1.rt7.503.el8_10
- redhat•kernel-rt-devel
< 0:4.18.0-553.162.1.rt7.503.el8_10 | < 0:4.18.0-553.162.1.rt7.503.el8_10
- redhat•kernel-rt-kvm
< 0:4.18.0-553.162.1.rt7.503.el8_10
- redhat•kernel-rt-modules
< 0:4.18.0-553.162.1.rt7.503.el8_10 | < 0:4.18.0-553.162.1.rt7.503.el8_10
- redhat•kernel-rt-modules-extra
< 0:4.18.0-553.162.1.rt7.503.el8_10 | < 0:4.18.0-553.162.1.rt7.503.el8_10
References (78)
- https://access.redhat.com/errata/RHSA-2026:66324
- https://access.redhat.com/security/updates/classification/#important
- https://bugzilla.redhat.com/show_bug.cgi?id=2425039
- https://bugzilla.redhat.com/show_bug.cgi?id=2482566
- https://bugzilla.redhat.com/show_bug.cgi?id=2492091
- https://bugzilla.redhat.com/show_bug.cgi?id=2492115
- https://bugzilla.redhat.com/show_bug.cgi?id=2492270
- https://bugzilla.redhat.com/show_bug.cgi?id=2492397
- https://bugzilla.redhat.com/show_bug.cgi?id=2492771
- https://bugzilla.redhat.com/show_bug.cgi?id=2502254
- https://bugzilla.redhat.com/show_bug.cgi?id=2502331
- https://bugzilla.redhat.com/show_bug.cgi?id=2502380
- https://bugzilla.redhat.com/show_bug.cgi?id=2502541
- https://bugzilla.redhat.com/show_bug.cgi?id=2513253
- https://bugzilla.redhat.com/show_bug.cgi?id=2513397
- https://bugzilla.redhat.com/show_bug.cgi?id=2513408
- https://bugzilla.redhat.com/show_bug.cgi?id=2513474
- https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_66324.json
- https://access.redhat.com/security/cve/CVE-2025-68745
- https://www.cve.org/CVERecord?id=CVE-2025-68745
- https://nvd.nist.gov/vuln/detail/CVE-2025-68745
- https://lore.kernel.org/linux-cve-announce/2025122416-CVE-2025-68745-69b5@gregkh/T
- https://access.redhat.com/security/cve/CVE-2026-46149
- https://www.cve.org/CVERecord?id=CVE-2026-46149
- https://nvd.nist.gov/vuln/detail/CVE-2026-46149
- https://lore.kernel.org/linux-cve-announce/2026052822-CVE-2026-46149-ad2e@gregkh/T
- https://access.redhat.com/security/cve/CVE-2026-52917
- https://www.cve.org/CVERecord?id=CVE-2026-52917
- https://nvd.nist.gov/vuln/detail/CVE-2026-52917
- https://lore.kernel.org/linux-cve-announce/2026062429-CVE-2026-52917-d3b0@gregkh/T
- https://access.redhat.com/security/cve/CVE-2026-52942
- https://www.cve.org/CVERecord?id=CVE-2026-52942
- https://nvd.nist.gov/vuln/detail/CVE-2026-52942
- https://lore.kernel.org/linux-cve-announce/2026062435-CVE-2026-52942-2530@gregkh/T
- https://access.redhat.com/security/cve/CVE-2026-52986
- https://www.cve.org/CVERecord?id=CVE-2026-52986
- https://nvd.nist.gov/vuln/detail/CVE-2026-52986
- https://lore.kernel.org/linux-cve-announce/2026062443-CVE-2026-52986-b7fa@gregkh/T
- https://access.redhat.com/security/cve/CVE-2026-53091
- https://www.cve.org/CVERecord?id=CVE-2026-53091
- https://nvd.nist.gov/vuln/detail/CVE-2026-53091
- https://lore.kernel.org/linux-cve-announce/2026062409-CVE-2026-53091-cb58@gregkh/T
- https://access.redhat.com/security/cve/CVE-2026-53246
- https://www.cve.org/CVERecord?id=CVE-2026-53246
- https://nvd.nist.gov/vuln/detail/CVE-2026-53246
- https://lore.kernel.org/linux-cve-announce/2026062512-CVE-2026-53246-e748@gregkh/T
- https://access.redhat.com/security/cve/CVE-2026-63801
- https://www.cve.org/CVERecord?id=CVE-2026-63801
- https://nvd.nist.gov/vuln/detail/CVE-2026-63801
- https://lore.kernel.org/linux-cve-announce/2026071901-CVE-2026-63801-f5e2@gregkh/T
- https://access.redhat.com/security/cve/CVE-2026-63971
- https://www.cve.org/CVERecord?id=CVE-2026-63971
- https://nvd.nist.gov/vuln/detail/CVE-2026-63971
- https://lore.kernel.org/linux-cve-announce/2026071959-CVE-2026-63971-dd46@gregkh/T
- https://access.redhat.com/security/cve/CVE-2026-64015
- https://www.cve.org/CVERecord?id=CVE-2026-64015
- https://nvd.nist.gov/vuln/detail/CVE-2026-64015
- https://lore.kernel.org/linux-cve-announce/2026071957-CVE-2026-64015-19c9@gregkh/T
- https://access.redhat.com/security/cve/CVE-2026-64113
- https://www.cve.org/CVERecord?id=CVE-2026-64113
- https://nvd.nist.gov/vuln/detail/CVE-2026-64113
- https://lore.kernel.org/linux-cve-announce/2026071922-CVE-2026-64113-87d9@gregkh/T
- https://access.redhat.com/security/cve/CVE-2026-68117
- https://www.cve.org/CVERecord?id=CVE-2026-68117
- https://nvd.nist.gov/vuln/detail/CVE-2026-68117
- https://lore.kernel.org/linux-cve-announce/2026081055-CVE-2026-68117-dd27@gregkh/T
- https://access.redhat.com/security/cve/CVE-2026-68300
- https://www.cve.org/CVERecord?id=CVE-2026-68300
- https://nvd.nist.gov/vuln/detail/CVE-2026-68300
- https://lore.kernel.org/linux-cve-announce/2026081029-CVE-2026-68300-ab03@gregkh/T
- https://access.redhat.com/security/cve/CVE-2026-68315
- https://www.cve.org/CVERecord?id=CVE-2026-68315
- https://nvd.nist.gov/vuln/detail/CVE-2026-68315
- https://lore.kernel.org/linux-cve-announce/2026081032-CVE-2026-68315-b0e7@gregkh/T
- https://access.redhat.com/security/cve/CVE-2026-68376
- https://www.cve.org/CVERecord?id=CVE-2026-68376
- https://nvd.nist.gov/vuln/detail/CVE-2026-68376
- https://lore.kernel.org/linux-cve-announce/2026081043-CVE-2026-68376-5dfa@gregkh/T