Linux kernel bug can crash services
Linux kernel has a CERT-Bund advisory for 5 vulnerabilities. An attacker can exploit multiple vulnerabilities in the Linux kernel to disclose sensitive information, manipulate data, cause a denial-of-service condition, or elevate their privileges.
- Severity
- Not scoredNo CVSS score recorded
- Fix
- Not confirmed
- Affects
- Linux kernel
- Exploited
- Not confirmedNo confirmation recorded
How it works
An attacker can exploit multiple vulnerabilities in the Linux kernel to disclose sensitive information, manipulate data, cause a denial-of-service condition, or elevate their privileges.
What to do
Check whether you run Linux kernel on a system covered by the CERT-Bund advisory.
Apply the vendor security update for Linux kernel.
Technical details
CERT-Bund describes Linux kernel as Der Kernel stellt den Kern des Linux Betriebssystems dar. An attacker can exploit multiple vulnerabilities in the Linux kernel to disclose sensitive information, manipulate data, cause a denial-of-service condition, or elevate their privileges. The advisory tracks CVE-2026-64561, CVE-2026-64562, CVE-2026-64563, CVE-2026-64564, CVE-2026-64565. Affected operating systems listed by CERT-Bund: Linux.
References
- wid.cert-bund.de · wid-sec-w-2026-2640.json technical description
- lore.kernel.org · linux-cve-announce third party advisory
- lore.kernel.org · 2026080401-CVE-2026-64561-d0d4@gregkh third party advisory
- lore.kernel.org · 2026080404-CVE-2026-64562-8875@gregkh third party advisory
- lore.kernel.org · 2026080404-CVE-2026-64563-9d7f@gregkh third party advisory
- lore.kernel.org · 2026080404-CVE-2026-64564-6762@gregkh third party advisory
- lore.kernel.org · 2026080404-CVE-2026-64565-557c@gregkh third party advisory
- linux.oracle.com · ELSA-2026-500137.html third party advisory
- linux.oracle.com · ELSA-2026-500135.html third party advisory
- matrix.tencent.com · sctphantom-CVE-2026-64564 third party advisory
- docs.cloud.google.com · bulletins third party advisory
- security-tracker.debian.org · DSA-6415-1 third party advisory
- linux.oracle.com · ELSA-2026-500150.html third party advisory
- lists.opensuse.org · 4IVL5FW6PHMMMUN3JJLKHIONSLZGOPQ2 third party advisory
- linux.oracle.com · ELSA-2026-500162.html third party advisory
- lists.suse.com · 028284.html third party advisory
- lists.suse.com · 028276.html third party advisory
- lists.suse.com · 028283.html third party advisory
- lists.suse.com · 028289.html third party advisory
- lists.suse.com · 028290.html third party advisory
- lists.suse.com · 028291.html third party advisory
- lists.suse.com · 028374.html third party advisory
- lists.debian.org · msg00035.html third party advisory
- lists.suse.com · 028463.html third party advisory
- lists.suse.com · 028470.html third party advisory
- lists.suse.com · 028462.html third party advisory
- lists.suse.com · 028566.html third party advisory
- lists.suse.com · 028567.html third party advisory
- lists.suse.com · 028568.html third party advisory
- lists.suse.com · 028569.html third party advisory
- lists.suse.com · 028563.html third party advisory
- lists.suse.com · 028545.html third party advisory
- lists.suse.com · 028533.html third party advisory
- lists.suse.com · 028524.html third party advisory
- lists.suse.com · 028598.html third party advisory
- lists.suse.com · 028611.html third party advisory
- alas.aws.amazon.com · ALAS2KERNEL-5.10-2026-130.html third party advisory
- oss.oracle.com · 021882.html third party advisory
- oss.oracle.com · 021872.html third party advisory
- linux.oracle.com · ELSA-2026-500249.html third party advisory
- access.redhat.com · RHSA-2026:64770 third party advisory
- lists.debian.org · msg00012.html third party advisory
- access.redhat.com · RHSA-2026:64775 third party advisory
- errata.build.resf.org · RLSA-2026:64770 third party advisory
- access.redhat.com · RHSA-2026:66180 third party advisory
- errata.build.resf.org · RLSA-2026:64775 third party advisory
- linux.oracle.com · ELSA-2026-64775-0.html third party advisory
- linux.oracle.com · ELSA-2026-66180-0.html third party advisory