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RHSA-2026:36348
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Source
https://access.redhat.com/errata/RHSA-2026:36348
Import Source
https://security.access.redhat.com/data/osv/RHSA-2026:36348.json
JSON Data
https://api.osv.dev/v1/vulns/RHSA-2026:36348
Upstream
CVE-2025-10263
CVE-2026-43198
CVE-2026-43450
CVE-2026-46209
CVE-2026-46227
CVE-2026-46259
Published
2026-07-08T10:09:26Z
Modified
2026-07-09T10:12:32Z
Severity
8.4 (High)
CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
CVSS Calculator
Summary
Red Hat Security Advisory: kernel-rt security, bug fix, and enhancement update
Details
References
https://access.redhat.com/errata/RHSA-2026:36348
https://access.redhat.com/security/updates/classification/#important
https://bugzilla.redhat.com/show_bug.cgi?id=2467228
https://bugzilla.redhat.com/show_bug.cgi?id=2468228
https://bugzilla.redhat.com/show_bug.cgi?id=2482564
https://bugzilla.redhat.com/show_bug.cgi?id=2482636
https://bugzilla.redhat.com/show_bug.cgi?id=2484477
https://bugzilla.redhat.com/show_bug.cgi?id=2486958
https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_36348.json
https://access.redhat.com/security/cve/CVE-2025-10263
https://www.cve.org/CVERecord?id=CVE-2025-10263
https://nvd.nist.gov/vuln/detail/CVE-2025-10263
https://developer.arm.com/documentation/112137
https://access.redhat.com/security/cve/CVE-2026-43198
https://www.cve.org/CVERecord?id=CVE-2026-43198
https://nvd.nist.gov/vuln/detail/CVE-2026-43198
https://lore.kernel.org/linux-cve-announce/2026050645-CVE-2026-43198-0870@gregkh/T
https://access.redhat.com/security/cve/CVE-2026-43450
https://www.cve.org/CVERecord?id=CVE-2026-43450
https://nvd.nist.gov/vuln/detail/CVE-2026-43450
https://lore.kernel.org/linux-cve-announce/2026050857-CVE-2026-43450-8919@gregkh/T
https://access.redhat.com/security/cve/CVE-2026-46209
https://www.cve.org/CVERecord?id=CVE-2026-46209
https://nvd.nist.gov/vuln/detail/CVE-2026-46209
https://lore.kernel.org/linux-cve-announce/2026052834-CVE-2026-46209-e4e9@gregkh/T
https://access.redhat.com/security/cve/CVE-2026-46227
https://www.cve.org/CVERecord?id=CVE-2026-46227
https://nvd.nist.gov/vuln/detail/CVE-2026-46227
https://lore.kernel.org/linux-cve-announce/2026052838-CVE-2026-46227-4bf1@gregkh/T
https://access.redhat.com/security/cve/CVE-2026-46259
https://www.cve.org/CVERecord?id=CVE-2026-46259
https://nvd.nist.gov/vuln/detail/CVE-2026-46259
https://lore.kernel.org/linux-cve-announce/2026060336-CVE-2026-46259-6c94@gregkh/T
Affected packages
Red Hat:enterprise_linux:8::nfv
kernel-rt
Package
Name
kernel-rt
Purl
pkg:rpm/redhat/kernel-rt
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:4.18.0-553.140.1.rt7.481.el8_10
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:36348.json"
kernel-rt-core
Package
Name
kernel-rt-core
Purl
pkg:rpm/redhat/kernel-rt-core
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:4.18.0-553.140.1.rt7.481.el8_10
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:36348.json"
kernel-rt-debug
Package
Name
kernel-rt-debug
Purl
pkg:rpm/redhat/kernel-rt-debug
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:4.18.0-553.140.1.rt7.481.el8_10
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:36348.json"
kernel-rt-debug-core
Package
Name
kernel-rt-debug-core
Purl
pkg:rpm/redhat/kernel-rt-debug-core
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:4.18.0-553.140.1.rt7.481.el8_10
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:36348.json"
kernel-rt-debug-debuginfo
Package
Name
kernel-rt-debug-debuginfo
Purl
pkg:rpm/redhat/kernel-rt-debug-debuginfo
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:4.18.0-553.140.1.rt7.481.el8_10
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:36348.json"
kernel-rt-debug-devel
Package
Name
kernel-rt-debug-devel
Purl
pkg:rpm/redhat/kernel-rt-debug-devel
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:4.18.0-553.140.1.rt7.481.el8_10
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:36348.json"
kernel-rt-debug-kvm
Package
Name
kernel-rt-debug-kvm
Purl
pkg:rpm/redhat/kernel-rt-debug-kvm
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:4.18.0-553.140.1.rt7.481.el8_10
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:36348.json"
kernel-rt-debug-modules
Package
Name
kernel-rt-debug-modules
Purl
pkg:rpm/redhat/kernel-rt-debug-modules
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:4.18.0-553.140.1.rt7.481.el8_10
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:36348.json"
kernel-rt-debug-modules-extra
Package
Name
kernel-rt-debug-modules-extra
Purl
pkg:rpm/redhat/kernel-rt-debug-modules-extra
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:4.18.0-553.140.1.rt7.481.el8_10
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:36348.json"
kernel-rt-debuginfo
Package
Name
kernel-rt-debuginfo
Purl
pkg:rpm/redhat/kernel-rt-debuginfo
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:4.18.0-553.140.1.rt7.481.el8_10
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:36348.json"
kernel-rt-debuginfo-common-x86_64
Package
Name
kernel-rt-debuginfo-common-x86_64
Purl
pkg:rpm/redhat/kernel-rt-debuginfo-common-x86_64
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:4.18.0-553.140.1.rt7.481.el8_10
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:36348.json"
kernel-rt-devel
Package
Name
kernel-rt-devel
Purl
pkg:rpm/redhat/kernel-rt-devel
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:4.18.0-553.140.1.rt7.481.el8_10
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:36348.json"
kernel-rt-kvm
Package
Name
kernel-rt-kvm
Purl
pkg:rpm/redhat/kernel-rt-kvm
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:4.18.0-553.140.1.rt7.481.el8_10
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:36348.json"
kernel-rt-modules
Package
Name
kernel-rt-modules
Purl
pkg:rpm/redhat/kernel-rt-modules
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:4.18.0-553.140.1.rt7.481.el8_10
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:36348.json"
kernel-rt-modules-extra
Package
Name
kernel-rt-modules-extra
Purl
pkg:rpm/redhat/kernel-rt-modules-extra
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:4.18.0-553.140.1.rt7.481.el8_10
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:36348.json"
Red Hat:enterprise_linux:8::realtime
kernel-rt
Package
Name
kernel-rt
Purl
pkg:rpm/redhat/kernel-rt
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:4.18.0-553.140.1.rt7.481.el8_10
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:36348.json"
kernel-rt-core
Package
Name
kernel-rt-core
Purl
pkg:rpm/redhat/kernel-rt-core
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:4.18.0-553.140.1.rt7.481.el8_10
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:36348.json"
kernel-rt-debug
Package
Name
kernel-rt-debug
Purl
pkg:rpm/redhat/kernel-rt-debug
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:4.18.0-553.140.1.rt7.481.el8_10
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:36348.json"
kernel-rt-debug-core
Package
Name
kernel-rt-debug-core
Purl
pkg:rpm/redhat/kernel-rt-debug-core
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:4.18.0-553.140.1.rt7.481.el8_10
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:36348.json"
kernel-rt-debug-debuginfo
Package
Name
kernel-rt-debug-debuginfo
Purl
pkg:rpm/redhat/kernel-rt-debug-debuginfo
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:4.18.0-553.140.1.rt7.481.el8_10
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:36348.json"
kernel-rt-debug-devel
Package
Name
kernel-rt-debug-devel
Purl
pkg:rpm/redhat/kernel-rt-debug-devel
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:4.18.0-553.140.1.rt7.481.el8_10
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:36348.json"
kernel-rt-debug-modules
Package
Name
kernel-rt-debug-modules
Purl
pkg:rpm/redhat/kernel-rt-debug-modules
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:4.18.0-553.140.1.rt7.481.el8_10
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:36348.json"
kernel-rt-debug-modules-extra
Package
Name
kernel-rt-debug-modules-extra
Purl
pkg:rpm/redhat/kernel-rt-debug-modules-extra
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:4.18.0-553.140.1.rt7.481.el8_10
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:36348.json"
kernel-rt-debuginfo
Package
Name
kernel-rt-debuginfo
Purl
pkg:rpm/redhat/kernel-rt-debuginfo
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:4.18.0-553.140.1.rt7.481.el8_10
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:36348.json"
kernel-rt-debuginfo-common-x86_64
Package
Name
kernel-rt-debuginfo-common-x86_64
Purl
pkg:rpm/redhat/kernel-rt-debuginfo-common-x86_64
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:4.18.0-553.140.1.rt7.481.el8_10
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:36348.json"
kernel-rt-devel
Package
Name
kernel-rt-devel
Purl
pkg:rpm/redhat/kernel-rt-devel
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:4.18.0-553.140.1.rt7.481.el8_10
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:36348.json"
kernel-rt-modules
Package
Name
kernel-rt-modules
Purl
pkg:rpm/redhat/kernel-rt-modules
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:4.18.0-553.140.1.rt7.481.el8_10
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:36348.json"
kernel-rt-modules-extra
Package
Name
kernel-rt-modules-extra
Purl
pkg:rpm/redhat/kernel-rt-modules-extra
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:4.18.0-553.140.1.rt7.481.el8_10
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:36348.json"
RHSA-2026:36348 - OSV