Red Hat Enterprise Linux (389-ds-base): Mehrere Schwachstellen
WID-SEC-2026-2854 · first 17.08.2026 · updated 15.10.2026 · CVSS 7,5
What it is about
Red Hat Enterprise Linux (RHEL) ist eine populäre Linux-Distribution. Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Red Hat Enterprise Linux ausnutzen, um Informationen offenzulegen und um einen Denial-of-Service-Zustand zu verursachen.
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
- Informationen offenzulegen
- einen Denial-of-Service-Zustand zu verursachen
Am I affected?
Affected according to the BSI:
- Amazon Linux 2
- Red Hat Enterprise Linux
- Fedora Linux
- RESF Rocky Linux
- SUSE Linux
- SUSE openSUSE
- Oracle Linux
- Red Hat Enterprise Linux 9.4 Update Services for SAP Solution
- Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions
- Red Hat Enterprise Linux 10.0 Extended Update Support
- Red Hat Enterprise Linux 9.6 Extended Update Support
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-2026:55421 vom 2026-08-16 access.redhat.com
- Red Hat Security Advisory RHSA-2026:55422 vom 2026-08-16 access.redhat.com
- Red Hat Security Advisory RHSA-2026:55425 vom 2026-08-16 access.redhat.com
- Red Hat Security Advisory RHSA-2026:55426 vom 2026-08-16 access.redhat.com
- Red Hat Security Advisory RHSA-2026:55530 vom 2026-08-17 access.redhat.com
- Red Hat Security Advisory RHSA-2026:55532 vom 2026-08-17 access.redhat.com
- Red Hat Security Advisory RHSA-2026:55423 vom 2026-08-17 access.redhat.com
- Red Hat Security Advisory RHSA-2026:55424 vom 2026-08-17 access.redhat.com
- Red Hat Security Advisory RHSA-2026:55756 vom 2026-08-17 access.redhat.com
- Red Hat Security Advisory RHSA-2026:55758 vom 2026-08-17 access.redhat.com
- Oracle Linux Security Advisory ELSA-2026-55530 vom 2026-08-17 linux.oracle.com
- Rocky Linux Security Advisory RLSA-2026:55530 vom 2026-08-17 errata.build.resf.org
- Oracle Linux Security Advisory ELSA-2026-55424 vom 2026-08-17 linux.oracle.com
- Rocky Linux Security Advisory RLSA-2026:55423 vom 2026-08-17 errata.build.resf.org
- Rocky Linux Security Advisory RLSA-2026:55424 vom 2026-08-17 errata.build.resf.org
- Oracle Linux Security Advisory ELSA-2026-55423 vom 2026-08-17 linux.oracle.com
- Red Hat Security Advisory RHSA-2026:55794 vom 2026-08-18 access.redhat.com
- Red Hat Security Advisory RHSA-2026:55757 vom 2026-08-17 access.redhat.com
- Red Hat Security Advisory RHSA-2026:56047 vom 2026-08-18 access.redhat.com
- Red Hat Security Advisory RHSA-2026:56048 vom 2026-08-18 access.redhat.com
- Red Hat Security Advisory RHSA-2026:56050 vom 2026-08-18 access.redhat.com
- Fedora Security Advisory FEDORA-2026-C1E25A4642 vom 2026-09-07 bodhi.fedoraproject.org
- Fedora Security Advisory FEDORA-2026-0B8BC362B1 vom 2026-09-07 bodhi.fedoraproject.org
- Fedora Security Advisory FEDORA-2026-B16C9CBC0F vom 2026-09-07 bodhi.fedoraproject.org
- Oracle Linux Security Advisory ELSA-2026-64785 vom 2026-09-08 linux.oracle.com
and 11 more sources in the original advisory
CVE: CVE-2026-11770, CVE-2026-11788, CVE-2026-15722
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.