Red Hat patches dozens of Linux kernel flaws
CERT-FR advisory details over 100 Linux kernel vulnerabilities in multiple Red Hat Enterprise Linux products enabling RCE, privilege escalation and DoS.
Sourcecert.cyber.gouv.fr — open the original
What to check
- Applies to
- The 40 CVEs named below. Whether you run an affected version is not assessed: check the versions the source lists.
- Exploitation
- No exploitation in the wild and no public exploit is recorded for the CVEs named.
CERT-FR has published an advisory consolidating a large batch of Red Hat security bulletins (RHSA) covering vulnerabilities in the Linux kernel as shipped across the Red Hat Enterprise Linux product family. Affected products span RHEL 7 through 10 across x86_64, aarch64, s390x (IBM z Systems), and ppc64le (Power) architectures, including Extended Update Support, Extended Life Cycle, CodeReady Linux Builder, Real Time, and SAP Solutions variants — effectively the full current and extended-support RHEL product line.
The advisory lists over one hundred CVEs affecting the kernel, with risks including remote arbitrary code execution, local privilege escalation, remote denial of service, data integrity and confidentiality compromise, security policy bypass, and CSRF-style request forgery via kernel-adjacent components. No individual CVE descriptions, exploitation details, or in-the-wild exploitation status are provided in the advisory itself; it functions as a pointer to the underlying Red Hat errata (RHSA-2026 series) published between 30 October and 5 November 2026.
Defenders running any supported Red Hat Enterprise Linux release should apply the referenced RHSA kernel updates according to their standard patch management process. Given the breadth of affected products and the presence of remote code execution and privilege escalation among the listed risk categories, prioritize patching systems exposed to untrusted input or multi-tenant workloads, and track the referenced CVEs individually via Red Hat's errata pages for applicability and exploitability detail specific to each environment.
Mentioned in this report
Source reporting: https://www.cert.cyber.gouv.fr/avis/CERTFR-2026-AVI-1471
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