What is RHSA-2025:19440?

RHSA-2025:19440 is a security advisory published by Red Hat Product Security with Medium severity. Red Hat Security Advisory: kernel-rt security update

Which CVE IDs does RHSA-2025:19440 cover?

RHSA-2025:19440 covers the following CVE IDs: CVE-2023-53257, CVE-2025-39864, CVE-2023-53226. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of RHSA-2025:19440?

RHSA-2025:19440 has a CVSS v3 base score of 7.5, published by Red Hat Product Security.

Which products are affected by RHSA-2025:19440?

RHSA-2025:19440 affects 32 products, including: Red Hat Enterprise Linux NFV (v. 8); Red Hat Enterprise Linux RT (v. 8); kernel-rt-0:4.18.0-553.82.1.rt7.423.el8_10.src as a component of Red Hat Enterprise Linux NFV (v. 8); kernel-rt-0:4.18.0-553.82.1.rt7.423.el8_10.src as a component of Red Hat Enterprise Linux RT (v. 8); kernel-rt-0:4.18.0-553.82.1.rt7.423.el8_10.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8); and others — see the full list on the advisory page.

RHSA-2025:19440MediumCVSS 7.5

Red Hat Security Advisory: kernel-rt security update

Vendor

Red Hat Product Security

Published

November 3, 2025

Last Modified

July 30, 2026

🔗 CVE IDs covered (3)

CVE-2023-53257 →CVE-2025-39864 →CVE-2023-53226 →

📋 Description

CVE-2023-53226 — kernel: wifi: mwifiex: Fix OOB and integer underflow when rx packets CVE-2023-53257 — kernel: wifi: mac80211: check S1G action frame size CVE-2025-39864 — kernel: wifi: cfg80211: fix use-after-free in cmp_bss()

🎯 Affected products32

Red Hat Enterprise Linux NFV (v. 8)
Red Hat Enterprise Linux RT (v. 8)
kernel-rt-0:4.18.0-553.82.1.rt7.423.el8_10.src as a component of Red Hat Enterprise Linux NFV (v. 8)
kernel-rt-0:4.18.0-553.82.1.rt7.423.el8_10.src as a component of Red Hat Enterprise Linux RT (v. 8)
kernel-rt-0:4.18.0-553.82.1.rt7.423.el8_10.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)
kernel-rt-0:4.18.0-553.82.1.rt7.423.el8_10.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8)
kernel-rt-core-0:4.18.0-553.82.1.rt7.423.el8_10.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)
kernel-rt-core-0:4.18.0-553.82.1.rt7.423.el8_10.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8)
kernel-rt-debug-0:4.18.0-553.82.1.rt7.423.el8_10.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)
kernel-rt-debug-0:4.18.0-553.82.1.rt7.423.el8_10.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8)
kernel-rt-debug-core-0:4.18.0-553.82.1.rt7.423.el8_10.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)
kernel-rt-debug-core-0:4.18.0-553.82.1.rt7.423.el8_10.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8)
kernel-rt-debug-debuginfo-0:4.18.0-553.82.1.rt7.423.el8_10.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)
kernel-rt-debug-debuginfo-0:4.18.0-553.82.1.rt7.423.el8_10.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8)
kernel-rt-debug-devel-0:4.18.0-553.82.1.rt7.423.el8_10.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)
kernel-rt-debug-devel-0:4.18.0-553.82.1.rt7.423.el8_10.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8)
kernel-rt-debug-kvm-0:4.18.0-553.82.1.rt7.423.el8_10.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)
kernel-rt-debug-modules-0:4.18.0-553.82.1.rt7.423.el8_10.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)
kernel-rt-debug-modules-0:4.18.0-553.82.1.rt7.423.el8_10.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8)
kernel-rt-debug-modules-extra-0:4.18.0-553.82.1.rt7.423.el8_10.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)
kernel-rt-debug-modules-extra-0:4.18.0-553.82.1.rt7.423.el8_10.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8)
kernel-rt-debuginfo-0:4.18.0-553.82.1.rt7.423.el8_10.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)
kernel-rt-debuginfo-0:4.18.0-553.82.1.rt7.423.el8_10.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8)
kernel-rt-debuginfo-common-x86_64-0:4.18.0-553.82.1.rt7.423.el8_10.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)
kernel-rt-debuginfo-common-x86_64-0:4.18.0-553.82.1.rt7.423.el8_10.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8)
kernel-rt-devel-0:4.18.0-553.82.1.rt7.423.el8_10.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)
kernel-rt-devel-0:4.18.0-553.82.1.rt7.423.el8_10.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8)
kernel-rt-kvm-0:4.18.0-553.82.1.rt7.423.el8_10.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)
kernel-rt-modules-0:4.18.0-553.82.1.rt7.423.el8_10.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)
kernel-rt-modules-0:4.18.0-553.82.1.rt7.423.el8_10.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8)
+2 more not shown

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect. Workaround: To mitigate this issue, prevent module mwifiex from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically. Workaround: To mitigate this issue, prevent module mac80211 from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically. Workaround: Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

🔗 CVE IDs covered (3)

📋 Description

🎯 Affected products32

✅ Remediation

🔗 References (6)