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Vulnerability Intelligence

Vulnerability IntelligenceRHSA-2026:1623

RHSA-2026:1623

HIGH7.6

Red Hat Security Advisory: kernel-rt security update

Published Feb 2, 2026

Modified Yesterday

Fix available

Affected Packages(11 packages)

kernel-rt

Red Hat rhel_extras_rt_els 7

Fixed in:

0:3.10.0-1160.146.1.rt56.1298.el7

kernel-rt-debug

Red Hat rhel_extras_rt_els 7

Fixed in:

0:3.10.0-1160.146.1.rt56.1298.el7

kernel-rt-debug-debuginfo

Red Hat rhel_extras_rt_els 7

Fixed in:

0:3.10.0-1160.146.1.rt56.1298.el7

kernel-rt-debug-devel

Red Hat rhel_extras_rt_els 7

Fixed in:

0:3.10.0-1160.146.1.rt56.1298.el7

kernel-rt-debuginfo

Red Hat rhel_extras_rt_els 7

Fixed in:

0:3.10.0-1160.146.1.rt56.1298.el7

kernel-rt-debuginfo-common-x86_64

Red Hat rhel_extras_rt_els 7

Fixed in:

0:3.10.0-1160.146.1.rt56.1298.el7

kernel-rt-devel

Red Hat rhel_extras_rt_els 7

Fixed in:

0:3.10.0-1160.146.1.rt56.1298.el7

kernel-rt-doc

Red Hat rhel_extras_rt_els 7

Fixed in:

0:3.10.0-1160.146.1.rt56.1298.el7

kernel-rt-trace

Red Hat rhel_extras_rt_els 7

Fixed in:

0:3.10.0-1160.146.1.rt56.1298.el7

kernel-rt-trace-debuginfo

Red Hat rhel_extras_rt_els 7

Fixed in:

0:3.10.0-1160.146.1.rt56.1298.el7

References

ADVISORYhttps://access.redhat.com/errata/RHSA-2026:1623 REPORThttps://access.redhat.com/security/cve/CVE-2025-39898 REPORThttps://access.redhat.com/security/cve/CVE-2025-39971 REPORThttps://access.redhat.com/security/cve/CVE-2025-40248 ARTICLEhttps://access.redhat.com/security/updates/classification/#important REPORThttps://bugzilla.redhat.com/show_bug.cgi?id=2400598 REPORThttps://bugzilla.redhat.com/show_bug.cgi?id=2404108 REPORThttps://bugzilla.redhat.com/show_bug.cgi?id=2418872 ARTICLEhttps://lore.kernel.org/linux-cve-announce/2025100116-CVE-2025-39898-d844@gregkh/T ARTICLEhttps://lore.kernel.org/linux-cve-announce/2025101556-CVE-2025-39971-97e2@gregkh/T ARTICLEhttps://lore.kernel.org/linux-cve-announce/2025120430-CVE-2025-40248-506e@gregkh/T ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2025-39898 ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2025-39971 ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2025-40248 ADVISORYhttps://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_1623.json ADVISORYhttps://www.cve.org/CVERecord?id=CVE-2025-39898 ADVISORYhttps://www.cve.org/CVERecord?id=CVE-2025-39971 ADVISORYhttps://www.cve.org/CVERecord?id=CVE-2025-40248

CVSS Analysis

CVSS v3.1

Exploitability

Attack Vector

NetworkAV:N

Attack Complexity

LowAC:L

Privileges Required

LowPR:L

User Interaction

NoneUI:N

Scope

Scope

UnchangedS:U

Impact

Confidentiality

LowC:L

Integrity

LowI:L

Availability

HighA:H

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

Upstream

CVE-2025-39898 CVE-2025-39971 CVE-2025-40248

Ecosystems

Red Hat rhel_extras_rt_els 7

Timeline

PublishedFeb 2, 2026

ModifiedFeb 2, 2026

RHSA-2026:1623 | Mondoo Vulnerability Intelligence