Red Hat Patches Dozens of Linux Kernel Flaws
Red Hat has issued multiple advisories fixing over 30 Linux kernel vulnerabilities that could allow remote code execution, privilege escalation, or denial of service.
Sourcecert.ssi.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
- CISA lists CVE-2026-31431 and CVE-2026-46300 as exploited in the wild.
CERT-FR has relayed a Red Hat security advisory addressing a large batch of vulnerabilities in the Linux kernel affecting Red Hat Enterprise Linux (versions 8, 9, and 10), CodeReady Linux Builder, and OpenShift Container Platform across x86_64, ARM64, IBM Z, and Power architectures. The flaws collectively enable remote code execution, privilege escalation, denial of service, data integrity and confidentiality breaches, and security policy bypass, though the advisory does not detail exploitation prerequisites or attack vectors for individual CVEs.
The advisory bundles more than 30 CVE identifiers spanning several RHSA errata releases published between June 29 and July 2, 2026. No indicators of compromise, threat actor attribution, or evidence of active exploitation are provided; this is a routine vendor patch consolidation covering kernel subsystems across a wide range of Red Hat product lines and hardware architectures. Administrators operating affected Red Hat Enterprise Linux, CodeReady Linux Builder, or OpenShift deployments should apply the referenced RHSA patches promptly given the breadth of impact categories, particularly the RCE and privilege escalation vectors.
Given the absence of confirmed in-the-wild exploitation and the standard nature of this vendor patch cycle, this is assessed as a routine, if extensive, kernel security update requiring standard patch management prioritization.
Mentioned in this report
Source reporting: https://www.cert.ssi.gouv.fr/avis/CERTFR-2026-AVI-0832
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