RHSA-2026:26563
Advisory lineage Upstream: 18 Downstream: 0
Published: 18 Jun 2026, 10:09
Last modified:18 Jul 2026, 10:09
Vulnerability Summary
Overall Risk (default)
medium
31/100 CVSS Score
7.8 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
18 Jun 2026, 10:09
Published
Vulnerability first disclosed
18 Jul 2026, 10:09
Last Modified
Vulnerability information updated
Description
Red Hat Security Advisory: kernel security update
CVSS Metrics
- v3.1•HIGH•Score: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Systems
- redhat•bpftool
< 0:4.18.0-477.147.1.el8_8
- redhat•bpftool-debuginfo
< 0:4.18.0-477.147.1.el8_8
- redhat•kernel
< 0:4.18.0-477.147.1.el8_8
- redhat•kernel-abi-stablelists
< 0:4.18.0-477.147.1.el8_8
- redhat•kernel-core
< 0:4.18.0-477.147.1.el8_8
- redhat•kernel-debug
< 0:4.18.0-477.147.1.el8_8
- redhat•kernel-debug-core
< 0:4.18.0-477.147.1.el8_8
- redhat•kernel-debug-debuginfo
< 0:4.18.0-477.147.1.el8_8
- redhat•kernel-debug-devel
< 0:4.18.0-477.147.1.el8_8
- redhat•kernel-debug-modules
< 0:4.18.0-477.147.1.el8_8
- redhat•kernel-debug-modules-extra
< 0:4.18.0-477.147.1.el8_8
- redhat•kernel-debuginfo
< 0:4.18.0-477.147.1.el8_8
- redhat•kernel-debuginfo-common-ppc64le
< 0:4.18.0-477.147.1.el8_8
- redhat•kernel-debuginfo-common-x86_64
< 0:4.18.0-477.147.1.el8_8
- redhat•kernel-devel
< 0:4.18.0-477.147.1.el8_8
- redhat•kernel-doc
< 0:4.18.0-477.147.1.el8_8
- redhat•kernel-modules
< 0:4.18.0-477.147.1.el8_8
- redhat•kernel-modules-extra
< 0:4.18.0-477.147.1.el8_8
- redhat•kernel-tools
< 0:4.18.0-477.147.1.el8_8
- redhat•kernel-tools-debuginfo
< 0:4.18.0-477.147.1.el8_8
- redhat•kernel-tools-libs
< 0:4.18.0-477.147.1.el8_8
- redhat•perf
< 0:4.18.0-477.147.1.el8_8
- redhat•perf-debuginfo
< 0:4.18.0-477.147.1.el8_8
- redhat•python3-perf
< 0:4.18.0-477.147.1.el8_8
- redhat•python3-perf-debuginfo
< 0:4.18.0-477.147.1.el8_8
References (95)
- https://access.redhat.com/errata/RHSA-2026:26563
- https://access.redhat.com/security/updates/classification/#important
- https://bugzilla.redhat.com/show_bug.cgi?id=2351619
- https://bugzilla.redhat.com/show_bug.cgi?id=2424881
- https://bugzilla.redhat.com/show_bug.cgi?id=2424886
- https://bugzilla.redhat.com/show_bug.cgi?id=2429065
- https://bugzilla.redhat.com/show_bug.cgi?id=2429104
- https://bugzilla.redhat.com/show_bug.cgi?id=2429602
- https://bugzilla.redhat.com/show_bug.cgi?id=2432389
- https://bugzilla.redhat.com/show_bug.cgi?id=2432400
- https://bugzilla.redhat.com/show_bug.cgi?id=2451218
- https://bugzilla.redhat.com/show_bug.cgi?id=2461759
- https://bugzilla.redhat.com/show_bug.cgi?id=2467005
- https://bugzilla.redhat.com/show_bug.cgi?id=2467014
- https://bugzilla.redhat.com/show_bug.cgi?id=2467059
- https://bugzilla.redhat.com/show_bug.cgi?id=2467064
- https://bugzilla.redhat.com/show_bug.cgi?id=2467210
- https://bugzilla.redhat.com/show_bug.cgi?id=2481486
- https://bugzilla.redhat.com/show_bug.cgi?id=2482564
- https://bugzilla.redhat.com/show_bug.cgi?id=2482608
- https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_26563.json
- https://access.redhat.com/security/cve/CVE-2025-21858
- https://www.cve.org/CVERecord?id=CVE-2025-21858
- https://nvd.nist.gov/vuln/detail/CVE-2025-21858
- https://lore.kernel.org/linux-cve-announce/2025031215-CVE-2025-21858-3986@gregkh/T
- https://access.redhat.com/security/cve/CVE-2025-68366
- https://www.cve.org/CVERecord?id=CVE-2025-68366
- https://nvd.nist.gov/vuln/detail/CVE-2025-68366
- https://lore.kernel.org/linux-cve-announce/2025122459-CVE-2025-68366-b367@gregkh/T
- https://access.redhat.com/security/cve/CVE-2025-68724
- https://www.cve.org/CVERecord?id=CVE-2025-68724
- https://nvd.nist.gov/vuln/detail/CVE-2025-68724
- https://lore.kernel.org/linux-cve-announce/2025122404-CVE-2025-68724-4d3c@gregkh/T
- https://access.redhat.com/security/cve/CVE-2025-68800
- https://www.cve.org/CVERecord?id=CVE-2025-68800
- https://nvd.nist.gov/vuln/detail/CVE-2025-68800
- https://lore.kernel.org/linux-cve-announce/2026011307-CVE-2025-68800-39d2@gregkh/T
- https://access.redhat.com/security/cve/CVE-2025-71089
- https://www.cve.org/CVERecord?id=CVE-2025-71089
- https://nvd.nist.gov/vuln/detail/CVE-2025-71089
- https://lore.kernel.org/linux-cve-announce/2026011341-CVE-2025-71089-a642@gregkh/T
- https://access.redhat.com/security/cve/CVE-2025-71116
- https://www.cve.org/CVERecord?id=CVE-2025-71116
- https://nvd.nist.gov/vuln/detail/CVE-2025-71116
- https://lore.kernel.org/linux-cve-announce/2026011414-CVE-2025-71116-e57d@gregkh/T
- https://access.redhat.com/security/cve/CVE-2026-22984
- https://www.cve.org/CVERecord?id=CVE-2026-22984
- https://nvd.nist.gov/vuln/detail/CVE-2026-22984
- https://lore.kernel.org/linux-cve-announce/2026012349-CVE-2026-22984-001c@gregkh/T
- https://access.redhat.com/security/cve/CVE-2026-22990
- https://www.cve.org/CVERecord?id=CVE-2026-22990
- https://nvd.nist.gov/vuln/detail/CVE-2026-22990
- https://lore.kernel.org/linux-cve-announce/2026012351-CVE-2026-22990-a62e@gregkh/T
- https://access.redhat.com/security/cve/CVE-2026-23392
- https://www.cve.org/CVERecord?id=CVE-2026-23392
- https://nvd.nist.gov/vuln/detail/CVE-2026-23392
- https://lore.kernel.org/linux-cve-announce/2026032548-CVE-2026-23392-fd9d@gregkh/T
- https://access.redhat.com/security/cve/CVE-2026-31685
- https://www.cve.org/CVERecord?id=CVE-2026-31685
- https://nvd.nist.gov/vuln/detail/CVE-2026-31685
- https://lore.kernel.org/linux-cve-announce/2026042545-CVE-2026-31685-3fcc@gregkh/T
- https://access.redhat.com/security/cve/CVE-2026-43110
- https://www.cve.org/CVERecord?id=CVE-2026-43110
- https://nvd.nist.gov/vuln/detail/CVE-2026-43110
- https://lore.kernel.org/linux-cve-announce/2026050624-CVE-2026-43110-7309@gregkh/T
- https://access.redhat.com/security/cve/CVE-2026-43116
- https://www.cve.org/CVERecord?id=CVE-2026-43116
- https://nvd.nist.gov/vuln/detail/CVE-2026-43116
- https://lore.kernel.org/linux-cve-announce/2026050626-CVE-2026-43116-08a5@gregkh/T
- https://access.redhat.com/security/cve/CVE-2026-43158
- https://www.cve.org/CVERecord?id=CVE-2026-43158
- https://nvd.nist.gov/vuln/detail/CVE-2026-43158
- https://lore.kernel.org/linux-cve-announce/2026050631-CVE-2026-43158-cc20@gregkh/T
- https://access.redhat.com/security/cve/CVE-2026-43163
- https://www.cve.org/CVERecord?id=CVE-2026-43163
- https://nvd.nist.gov/vuln/detail/CVE-2026-43163
- https://lore.kernel.org/linux-cve-announce/2026050632-CVE-2026-43163-86e1@gregkh/T
- https://access.redhat.com/security/cve/CVE-2026-43190
- https://www.cve.org/CVERecord?id=CVE-2026-43190
- https://nvd.nist.gov/vuln/detail/CVE-2026-43190
- https://lore.kernel.org/linux-cve-announce/2026050642-CVE-2026-43190-f1c9@gregkh/T
- https://access.redhat.com/security/cve/CVE-2026-46125
- https://www.cve.org/CVERecord?id=CVE-2026-46125
- https://nvd.nist.gov/vuln/detail/CVE-2026-46125
- https://lore.kernel.org/linux-cve-announce/2026052816-CVE-2026-46125-b5d0@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-2026-46243
- https://access.redhat.com/security/vulnerabilities/RHSB-2026-005
- https://www.cve.org/CVERecord?id=CVE-2026-46243
- https://nvd.nist.gov/vuln/detail/CVE-2026-46243
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3da1fdf4efbc490041eb4f836bf596201203f8f2
- https://lore.kernel.org/linux-cve-announce/2026060140-CVE-2026-46243-3d1c@gregkh/