Red Hat Patches Multiple Linux Kernel Flaws
CERT-FR advisory details multiple Red Hat Enterprise Linux kernel vulnerabilities enabling code execution, privilege escalation, and denial of service.
Sourcecert.ssi.gouv.fr — open the original
What to check
- Applies to
- The 27 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 issued an advisory (CERTFR-2026-AVI-1092) summarizing multiple vulnerabilities discovered in the Linux kernel as shipped by Red Hat, affecting a broad range of Red Hat Enterprise Linux (RHEL) products and architectures including x86_64, ARM64, IBM z Systems (s390x), and Power (ppc64le), across RHEL 8 and 9 variants including Extended Update Support, Extended Life Cycle, and SAP Solutions builds. The vulnerabilities collectively enable arbitrary code execution, privilege escalation, remote denial of service, data integrity and confidentiality breaches, and security policy bypass, though the advisory does not indicate active exploitation in the wild.
The advisory references twelve separate Red Hat Security Advisories (RHSAs) issued between August 24-27, 2026, each addressing kernel-level fixes, and enumerates 26 associated CVEs spanning kernel subsystems. No specific technical details, exploit code, or affected component internals are disclosed in this bulletin — it serves as a consolidated notification pointing administrators to the underlying Red Hat errata for patching. Defenders running any of the listed RHEL builds should prioritize applying the referenced RHSAs, particularly on systems where kernel-level privilege escalation or remote DoS could have significant operational impact (e.g., multi-tenant or internet-facing hosts).
Given the volume of affected products and the mix of impact types (including privilege escalation and RCE), this is a routine but broad patch-management advisory. There is no indication of in-the-wild exploitation, proof-of-concept availability, or targeted campaign activity associated with these CVEs at the time of publication, so urgency should be assessed based on each organization's kernel version exposure and patch cadence.
Mentioned in this report
Source reporting: https://www.cert.ssi.gouv.fr/avis/CERTFR-2026-AVI-1092
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