# Red Hat patches dozens of Linux kernel flaws

Published: 2026-10-09 · Severity: routine
Canonical: https://vorant.io/reports/e819e21f-5c21-5610-a778-ce3dca76ca98/red-hat-patches-dozens-of-linux-kernel-flaws

> CERT-FR advisory lists over 100 Linux kernel vulnerabilities in Red Hat Enterprise Linux enabling remote code execution, privilege escalation and denial of service.

CERT-FR has published an advisory consolidating multiple Red Hat Security Advisories (RHSA) issued between October 2 and October 9, 2026, covering a large batch of Linux kernel vulnerabilities affecting nearly all current and extended-support Red Hat Enterprise Linux product lines (versions 7 through 10.2) across x86_64, aarch64, s390x and ppc64le architectures, including CodeReady Linux Builder, Real Time, and SAP Solutions variants.

The vulnerabilities span a wide range of impacts: remote code execution, local privilege escalation, remote denial of service, data integrity and confidentiality breaches, and security policy bypass. No specific exploitation details, proof-of-concept code, or in-the-wild exploitation are mentioned in the advisory; it is a standard aggregated patch notice referencing 14 separate RHSA bulletins.

Defenders running affected Red Hat Enterprise Linux versions should prioritize applying the referenced RHSA updates according to their asset criticality, particularly for systems exposed to untrusted networks or supporting multi-tenant workloads where privilege escalation or RCE kernel bugs carry the highest risk. No active exploitation has been reported for these CVEs at the time of publication.

## Mentioned in this report

- Vulnerabilities: CVE-2022-49670, CVE-2022-50756, CVE-2023-53781, CVE-2023-54048, CVE-2025-39994, CVE-2025-40026, CVE-2025-40242, CVE-2025-68347, CVE-2026-22984, CVE-2026-23103, CVE-2026-23105, CVE-2026-31467, CVE-2026-31581, CVE-2026-31613, CVE-2026-31663, CVE-2026-43020, CVE-2026-43493, CVE-2026-45856, CVE-2026-45861, CVE-2026-45910, CVE-2026-45919, CVE-2026-45984, CVE-2026-45991, CVE-2026-46043, CVE-2026-46114, CVE-2026-46120, CVE-2026-46133, CVE-2026-46149, CVE-2026-46319, CVE-2026-52923, CVE-2026-52924, CVE-2026-52972, CVE-2026-52993, CVE-2026-53002, CVE-2026-53009, CVE-2026-53049, CVE-2026-53062, CVE-2026-53185, CVE-2026-53230

Source reporting: https://www.cert.ssi.gouv.fr/avis/CERTFR-2026-AVI-1287

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