Red Hat Enterprise Linux (pacemaker): Schwachstelle ermöglicht Denial of Service
WID-SEC-2026-2345 · first 15.07.2026 · updated 26.10.2026 · CVSS 8,6
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 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:
- IBM DB2
- Red Hat Enterprise Linux
- IBM License Metric Tool
- RESF Rocky Linux
- SUSE Linux
- SUSE openSUSE
- Oracle Linux
- Red Hat Enterprise Linux 8
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-2026:39322 vom 2026-07-14 access.redhat.com
- Red Hat Security Advisory RHSA-2026:39323 vom 2026-07-14 access.redhat.com
- Rocky Linux Security Advisory RLSA-2026:39323 vom 2026-07-15 errata.build.resf.org
- Red Hat Security Advisory RHSA-2026:40833 vom 2026-07-16 access.redhat.com
- Rocky Linux Security Advisory RLSA-2026:39322 vom 2026-07-15 errata.build.resf.org
- Red Hat Security Advisory RHSA-2026:41043 vom 2026-07-17 access.redhat.com
- Red Hat Security Advisory RHSA-2026:41044 vom 2026-07-17 access.redhat.com
- Red Hat Security Advisory RHSA-2026:41041 vom 2026-07-17 access.redhat.com
- Red Hat Security Advisory RHSA-2026:41042 vom 2026-07-17 access.redhat.com
- Oracle Linux Security Advisory ELSA-2026-39323 vom 2026-07-18 linux.oracle.com
- Red Hat Security Advisory RHSA-2026:42075 vom 2026-07-20 access.redhat.com
- Red Hat Security Advisory RHSA-2026:42076 vom 2026-07-20 access.redhat.com
- Red Hat Security Advisory RHSA-2026:42041 vom 2026-07-20 access.redhat.com
- Oracle Linux Security Advisory ELSA-2026-39322 vom 2026-07-22 oss.oracle.com
- Red Hat Security Advisory RHSA-2026:43606 vom 2026-07-23 access.redhat.com
- Rocky Linux Security Advisory RLSA-2026:40833 vom 2026-07-22 errata.build.resf.org
- IBM Security Bulletin 7286982 vom 2026-09-11 www.ibm.com
- openSUSE Security Update OPENSUSE-SU-2026:22069-1 vom 2026-10-18 lists.opensuse.org
- SUSE Security Update SUSE-SU-2026:24251-1 vom 2026-10-20 lists.suse.com
- SUSE Security Update SUSE-SU-2026:24196-1 vom 2026-10-20 lists.suse.com
- IBM Security Bulletin 7293833 vom 2026-10-23 www.ibm.com
CVE: CVE-2026-10649
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.