Red Hat Enterprise Linux (libgd): Schwachstelle ermöglicht Codeausführung
WID-SEC-2026-3747 · first 06.10.2026 · updated 20.10.2026 · CVSS 8,1
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-Zustand zu verursachen oder möglicherweise beliebigen Code auszuführen.
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-Zustand zu verursachen oder möglicherweise beliebigen Code auszuführen
Am I affected?
Affected according to the BSI:
- Red Hat Enterprise Linux
- RESF Rocky Linux
- 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-2026:75680 vom 2026-10-05 access.redhat.com
- Oracle Linux Security Advisory ELSA-2026-75680 vom 2026-10-07 linux.oracle.com
- Red Hat Security Advisory RHSA-2026:80500 vom 2026-10-12 access.redhat.com
- Red Hat Security Advisory RHSA-2026:81518 vom 2026-10-12 access.redhat.com
- Red Hat Security Advisory RHSA-2026:81517 vom 2026-10-13 access.redhat.com
- Oracle Linux Security Advisory ELSA-2026-81518 vom 2026-10-13 linux.oracle.com
- Oracle Linux Security Advisory ELSA-2026-81517 vom 2026-10-13 linux.oracle.com
- Rocky Linux Security Advisory RLSA-2026:81517 vom 2026-10-14 errata.build.resf.org
- Red Hat Security Advisory RHSA-2026:84581 vom 2026-10-19 access.redhat.com
- Red Hat Security Advisory RHSA-2026:84579 vom 2026-10-19 access.redhat.com
- Red Hat Security Advisory RHSA-2026:84580 vom 2026-10-19 access.redhat.com
- Red Hat Security Advisory RHSA-2026:85099 vom 2026-10-19 access.redhat.com
- Red Hat Security Advisory RHSA-2026:85102 vom 2026-10-19 access.redhat.com
- Red Hat Security Advisory RHSA-2026:85132 vom 2026-10-19 access.redhat.com
CVE: CVE-2026-9672
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.