What is RHSA-2026:47248?

RHSA-2026:47248 is a security advisory published by Red Hat Product Security with High severity. Red Hat Security Advisory: kernel security update

Which CVE IDs does RHSA-2026:47248 cover?

RHSA-2026:47248 covers the following CVE IDs: CVE-2026-31787, CVE-2026-52923, CVE-2026-53059, CVE-2025-10263. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of RHSA-2026:47248?

RHSA-2026:47248 has a CVSS v3 base score of 8.4, published by Red Hat Product Security.

Which products are affected by RHSA-2026:47248?

RHSA-2026:47248 affects 52 products, including: Red Hat Enterprise Linux BaseOS AUS (v.8.4); Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4); bpftool-0:4.18.0-305.200.1.el8_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4); bpftool-0:4.18.0-305.200.1.el8_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4); bpftool-debuginfo-0:4.18.0-305.200.1.el8_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4); and others — see the full list on the advisory page.

RHSA-2026:47248HighCVSS 8.4

Red Hat Security Advisory: kernel security update

Vendor

Red Hat Product Security

Published

July 28, 2026

Last Modified

August 19, 2026

🔗 CVE IDs covered (4)

CVE-2026-31787 →CVE-2026-52923 →CVE-2026-53059 →CVE-2025-10263 →

📋 Description

CVE-2025-10263 — kernel: Arm Processors: Privilege escalation or information disclosure via writes to higher exception level resources CVE-2026-31787 — kernel: xen/privcmd: fix double free via VMA splitting CVE-2026-52923 — kernel: ipc: limit next_id allocation to the valid ID range CVE-2026-53059 — kernel: dm log: fix out-of-bounds write due to region_count overflow

🎯 Affected products52

Red Hat Enterprise Linux BaseOS AUS (v.8.4)
Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
bpftool-0:4.18.0-305.200.1.el8_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
bpftool-0:4.18.0-305.200.1.el8_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
bpftool-debuginfo-0:4.18.0-305.200.1.el8_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
bpftool-debuginfo-0:4.18.0-305.200.1.el8_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
kernel-0:4.18.0-305.200.1.el8_4.src as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
kernel-0:4.18.0-305.200.1.el8_4.src as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
kernel-0:4.18.0-305.200.1.el8_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
kernel-0:4.18.0-305.200.1.el8_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
kernel-abi-stablelists-0:4.18.0-305.200.1.el8_4.noarch as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
kernel-abi-stablelists-0:4.18.0-305.200.1.el8_4.noarch as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
kernel-core-0:4.18.0-305.200.1.el8_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
kernel-core-0:4.18.0-305.200.1.el8_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
kernel-debug-0:4.18.0-305.200.1.el8_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
kernel-debug-0:4.18.0-305.200.1.el8_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
kernel-debug-core-0:4.18.0-305.200.1.el8_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
kernel-debug-core-0:4.18.0-305.200.1.el8_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
kernel-debug-debuginfo-0:4.18.0-305.200.1.el8_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
kernel-debug-debuginfo-0:4.18.0-305.200.1.el8_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
kernel-debug-devel-0:4.18.0-305.200.1.el8_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
kernel-debug-devel-0:4.18.0-305.200.1.el8_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
kernel-debug-modules-0:4.18.0-305.200.1.el8_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
kernel-debug-modules-0:4.18.0-305.200.1.el8_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
kernel-debug-modules-extra-0:4.18.0-305.200.1.el8_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
kernel-debug-modules-extra-0:4.18.0-305.200.1.el8_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
kernel-debuginfo-0:4.18.0-305.200.1.el8_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
kernel-debuginfo-0:4.18.0-305.200.1.el8_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
kernel-debuginfo-common-x86_64-0:4.18.0-305.200.1.el8_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
kernel-debuginfo-common-x86_64-0:4.18.0-305.200.1.el8_4.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
+22 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. Red Hat recommends treating all kernel errata as security-relevant. Given the kernel's fundamental role, any bug has a higher chance of impacting system security, even if that impact only becomes clear after a fix is published. Therefore, Red Hat prioritizes delivering fixes that improve our customers' overall security posture. Because of this proactive approach, a patch may be associated with a CVE assignment at a future date. Retroactive CVE assignments are always documented in the corresponding errata and on Red Hat's CVE pages. We strongly advise against delaying updates, as doing so may leave your system exposed when protections are already available.

🔗 CVE IDs covered (4)

📋 Description

🎯 Affected products52

✅ Remediation

🔗 References (7)