Red Hat Enterprise Linux (rhc): Schwachstelle ermöglicht Denial of Service
WID-SEC-2026-3605 · first 28.09.2026 · updated 28.10.2026 · CVSS 7,5
What it is about
Red Hat Enterprise Linux (RHEL) ist eine populäre Linux-Distribution. Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Red Hat Enterprise Linux (rhc) ausnutzen, um einen Denial of Service Angriff durchzuführen.
Under what conditions?
Over the network and without logging in. This is the most dangerous combination: attackers can scan reachable devices automatically.
What can happen in the worst case
An attacker could use the vulnerability to
- einen Denial of Service Angriff durchzuführen
Am I affected?
Affected according to the BSI:
- Red Hat Enterprise Linux
- IBM Storage Scale
- SUSE Linux
- SUSE openSUSE
- Oracle Linux
- Red Hat Enterprise Linux Advanced Cluster Management for Kubernetes
- Red Hat Enterprise Linux 9
The installed version is usually shown under “Help → About” or in the device’s admin interface.
What helps?
Install the updates provided by the vendor; details in the sources below.
Is the vulnerability already being exploited?
None of the CVEs is in the CISA catalogue of exploited vulnerabilities. That does not mean there are no attacks, only that none are documented.
Information and sources
- Original BSI advisory (WID)
- Red Hat Security Advisory RHSA-2026:72275 vom 2026-09-27 access.redhat.com
- Red Hat Security Advisory RHSA-2026:72879 vom 2026-09-29 access.redhat.com
- Red Hat Security Advisory RHSA-2026:73125 vom 2026-09-29 access.redhat.com
- Red Hat Security Advisory RHSA-2026:73915 vom 2026-09-30 access.redhat.com
- Red Hat Security Advisory RHSA-2026:74609 vom 2026-10-01 access.redhat.com
- Red Hat Security Advisory RHSA-2026:75689 vom 2026-10-05 access.redhat.com
- Red Hat Security Advisory RHSA-2026:76145 vom 2026-10-05 access.redhat.com
- Red Hat Security Advisory RHSA-2026:76752 vom 2026-10-07 access.redhat.com
- Red Hat Security Advisory RHSA-2026:76743 vom 2026-10-06 access.redhat.com
- Red Hat Security Advisory RHSA-2026:79088 vom 2026-10-08 access.redhat.com
- Red Hat Security Advisory RHSA-2026:79012 vom 2026-10-09 access.redhat.com
- Red Hat Security Advisory RHSA-2026:76744 vom 2026-10-08 access.redhat.com
- IBM Security Bulletin 7291685 vom 2026-10-08 www.ibm.com
- Red Hat Security Advisory RHSA-2026:79575 vom 2026-10-09 access.redhat.com
- Red Hat Security Advisory RHSA-2026:79368 vom 2026-10-08 access.redhat.com
- Red Hat Security Advisory RHSA-2026:79326 vom 2026-10-08 access.redhat.com
- Red Hat Security Advisory RHSA-2026:79010 vom 2026-10-09 access.redhat.com
- Red Hat Security Advisory RHSA-2026:82342 vom 2026-10-13 access.redhat.com
- Red Hat Security Advisory RHSA-2026:82346 vom 2026-10-13 access.redhat.com
- Red Hat Security Advisory RHSA-2026:82344 vom 2026-10-13 access.redhat.com
- Red Hat Security Advisory RHSA-2026:83013 vom 2026-10-14 access.redhat.com
- Red Hat Security Advisory RHSA-2026:83597 vom 2026-10-15 access.redhat.com
- Red Hat Security Advisory RHSA-2026:83663 vom 2026-10-16 access.redhat.com
- Red Hat Security Advisory RHSA-2026:83601 vom 2026-10-15 access.redhat.com
- Red Hat Security Advisory RHSA-2026:83662 vom 2026-10-16 access.redhat.com
and 20 more sources in the original advisory
CVE: CVE-2026-84445
Source: BSI warning and information service (CERT-Bund); CISA. The assessment of the conditions is my reading of the BSI text; the external pages are in their original language.