RHSA-2026:1703

HIGH7.1

Red Hat Security Advisory: kernel security update

Published Feb 3, 2026

Modified Yesterday

Fix available

Affected Packages(91 packages)

kernel

Red Hat rhel_eus 9.6 appstreamRed Hat rhel_eus 9.6 baseosRed Hat rhel_eus 9.6 crbRed Hat rhel_eus 9.6 nfvRed Hat rhel_eus 9.6 realtime

Fixed in:

0:5.14.0-570.84.1.el9_6

kernel-64k

Red Hat rhel_eus 9.6 appstreamRed Hat rhel_eus 9.6 baseosRed Hat rhel_eus 9.6 crbRed Hat rhel_eus 9.6 nfvRed Hat rhel_eus 9.6 realtime

Fixed in:

0:5.14.0-570.84.1.el9_6

kernel-64k-core

Red Hat rhel_eus 9.6 appstreamRed Hat rhel_eus 9.6 baseosRed Hat rhel_eus 9.6 crbRed Hat rhel_eus 9.6 nfvRed Hat rhel_eus 9.6 realtime

Fixed in:

0:5.14.0-570.84.1.el9_6

kernel-64k-debug

Red Hat rhel_eus 9.6 appstreamRed Hat rhel_eus 9.6 baseosRed Hat rhel_eus 9.6 crbRed Hat rhel_eus 9.6 nfvRed Hat rhel_eus 9.6 realtime

Fixed in:

0:5.14.0-570.84.1.el9_6

kernel-64k-debug-core

Red Hat rhel_eus 9.6 appstreamRed Hat rhel_eus 9.6 baseosRed Hat rhel_eus 9.6 crbRed Hat rhel_eus 9.6 nfvRed Hat rhel_eus 9.6 realtime

Fixed in:

0:5.14.0-570.84.1.el9_6

kernel-64k-debug-debuginfo

Red Hat rhel_eus 9.6 appstreamRed Hat rhel_eus 9.6 baseosRed Hat rhel_eus 9.6 crbRed Hat rhel_eus 9.6 nfvRed Hat rhel_eus 9.6 realtime

Fixed in:

0:5.14.0-570.84.1.el9_6

kernel-64k-debug-devel

Red Hat rhel_eus 9.6 appstreamRed Hat rhel_eus 9.6 baseosRed Hat rhel_eus 9.6 crbRed Hat rhel_eus 9.6 nfvRed Hat rhel_eus 9.6 realtime

Fixed in:

0:5.14.0-570.84.1.el9_6

kernel-64k-debug-devel-matched

Red Hat rhel_eus 9.6 appstreamRed Hat rhel_eus 9.6 baseosRed Hat rhel_eus 9.6 crbRed Hat rhel_eus 9.6 nfvRed Hat rhel_eus 9.6 realtime

Fixed in:

0:5.14.0-570.84.1.el9_6

kernel-64k-debug-modules

Red Hat rhel_eus 9.6 appstreamRed Hat rhel_eus 9.6 baseosRed Hat rhel_eus 9.6 crbRed Hat rhel_eus 9.6 nfvRed Hat rhel_eus 9.6 realtime

Fixed in:

0:5.14.0-570.84.1.el9_6

kernel-64k-debug-modules-core

Red Hat rhel_eus 9.6 appstreamRed Hat rhel_eus 9.6 baseosRed Hat rhel_eus 9.6 crbRed Hat rhel_eus 9.6 nfvRed Hat rhel_eus 9.6 realtime

Fixed in:

0:5.14.0-570.84.1.el9_6

References

ADVISORYhttps://access.redhat.com/errata/RHSA-2026:1703 REPORThttps://access.redhat.com/security/cve/CVE-2025-21863 REPORThttps://access.redhat.com/security/cve/CVE-2025-40248 REPORThttps://access.redhat.com/security/cve/CVE-2025-68301 ARTICLEhttps://access.redhat.com/security/updates/classification/#important REPORThttps://bugzilla.redhat.com/show_bug.cgi?id=2351629 REPORThttps://bugzilla.redhat.com/show_bug.cgi?id=2418872 REPORThttps://bugzilla.redhat.com/show_bug.cgi?id=2422836 ARTICLEhttps://lore.kernel.org/linux-cve-announce/2025031217-CVE-2025-21863-a73a@gregkh/T ARTICLEhttps://lore.kernel.org/linux-cve-announce/2025120430-CVE-2025-40248-506e@gregkh/T ARTICLEhttps://lore.kernel.org/linux-cve-announce/2025121643-CVE-2025-68301-be31@gregkh/T ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2025-21863 ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2025-40248 ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2025-68301 ADVISORYhttps://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_1703.json ADVISORYhttps://www.cve.org/CVERecord?id=CVE-2025-21863 ADVISORYhttps://www.cve.org/CVERecord?id=CVE-2025-40248 ADVISORYhttps://www.cve.org/CVERecord?id=CVE-2025-68301

CVSS Analysis

CVSS v3.1

Exploitability

Attack Vector

LocalAV:L

Attack Complexity

LowAC:L

Privileges Required

LowPR:L

User Interaction

NoneUI:N

Scope

UnchangedS:U

Impact

Confidentiality

HighC:H

Integrity

NoneI:N

Availability

HighA:H

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Upstream

CVE-2025-21863 CVE-2025-40248 CVE-2025-68301

Ecosystems

Red Hat rhel_eus 9.6 appstream Red Hat rhel_eus 9.6 baseos Red Hat rhel_eus 9.6 crb Red Hat rhel_eus 9.6 nfv Red Hat rhel_eus 9.6 realtime

Timeline

PublishedFeb 3, 2026

ModifiedFeb 11, 2026