Red Hat patches dozens of Linux kernel flaws
Red Hat issued multiple RHSA bulletins fixing numerous Linux kernel vulnerabilities enabling remote code execution, privilege escalation, and 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
- No exploitation in the wild and no public exploit is recorded for the CVEs named.
CERT-FR relayed a Red Hat security advisory covering a large batch of Linux kernel vulnerabilities affecting Red Hat Enterprise Linux (RHEL) versions 7 through 10 and their CodeReady Builder variants, across x86_64, aarch64, s390x (IBM z Systems), and ppc64le (IBM Power) architectures. The issues span a wide range of kernel subsystems and collectively allow data integrity and confidentiality compromise, security policy bypass, remote denial of service, remote arbitrary code execution, and privilege escalation, according to Red Hat's own classification. No proof-of-concept exploitation or in-the-wild attack activity is mentioned in the advisory.
The fixes are distributed across twelve separate RHSA errata (RHSA-2026:79786, 81349, 81371, 81406, 81552, 82806, 82807, 82860, 83156, 83157, 83159, 83207) published between October 9 and October 14, 2026, and reference over fifty individual CVEs. Affected products include standard RHEL subscriptions, Extended Update Support (EUS), Extended Life Cycle (ELS), Update Services for SAP Solutions, and Real Time kernel variants, indicating broad exposure across RHEL's full support matrix including long-term and SAP-specific deployments.
Defenders running any RHEL 7/8/9/10 kernel builds (including EUS, ELS, SAP, Real Time, and Power/z Systems variants) should apply the referenced RHSA kernel updates per their subscription channel. As this is a patch rollup with no evidence of active exploitation, prioritization should follow standard kernel-patching cadence, with particular attention to systems exposed to untrusted local users (privilege escalation risk) or network-facing kernel components (DoS/RCE risk).
Mentioned in this report
Source reporting: https://www.cert.ssi.gouv.fr/avis/CERTFR-2026-AVI-1334
Free public brief. Slack alerts on the vendors you run come with the paid plans, and a new account gets three days of them, no card.
What this brief leaves out
This page is the free tier: the write-up, the severity, the names. In the app the same report carries live profiles of the CVEs it names. The paid plans add the security research and news reporting the free tier leaves out.
It sits in a corpus of 16,445 reports from 149 sources, 666 of them written in the last seven days, and it grows through the day.
A new account starts with three days of all of it, no card, then keeps the government and CERT reporting free. Slack alerts are a paid-plan feature: name the vendors you run and Slack hears about the reports that touch them, not the rest of the week's. Nothing is charged unless you subscribe.
Create a free account What it costs