Red Hat Enterprise Linux (openexr): Schwachstelle ermöglicht Codeausführung und Dos
WID-SEC-2026-1053 · first 13.04.2026 · updated 08.05.2026 · CVSS 7,4
What it is about
Red Hat Enterprise Linux (RHEL) ist eine populäre Linux-Distribution. Ein lokaler Angreifer kann eine Schwachstelle in Red Hat Enterprise Linux ausnutzen, um möglicherweise beliebigen Code auszuführen oder einen Denial-of-Service-Zustand zu verursachen.
Under what conditions?
Only with access to the device or an account on it. Often the second step after a phishing email.
What can happen in the worst case
An attacker could use the vulnerability to
- möglicherweise beliebigen Code auszuführen oder einen Denial-of-Service-Zustand zu verursachen
Am I affected?
Affected according to the BSI:
- Red Hat Enterprise Linux
- Ubuntu Linux
- Oracle Linux
- RESF Rocky Linux
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 10.0 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 vom 2026-04-12 access.redhat.com
- Red Hat Security Advisory vom 2026-04-12 access.redhat.com
- Oracle Linux Security Advisory ELSA-2026-7682 vom 2026-04-13 linux.oracle.com
- Rocky Linux Security Advisory RLSA-2026:7682 vom 2026-04-16 errata.build.resf.org
- Red Hat Security Advisory RHSA-2026:8871 vom 2026-04-20 access.redhat.com
- Red Hat Security Advisory RHSA-2026:8888 vom 2026-04-20 access.redhat.com
- Red Hat Security Advisory RHSA-2026:8870 vom 2026-04-20 access.redhat.com
- Red Hat Security Advisory RHSA-2026:8872 vom 2026-04-20 access.redhat.com
- Red Hat Security Advisory RHSA-2026:8863 vom 2026-04-20 access.redhat.com
- Red Hat Security Advisory RHSA-2026:8869 vom 2026-04-20 access.redhat.com
- Oracle Linux Security Advisory ELSA-2026-8888 vom 2026-04-20 linux.oracle.com
- Oracle Linux Security Advisory ELSA-2026-8863 vom 2026-04-21 linux.oracle.com
- Rocky Linux Security Advisory RLSA-2026:8888 vom 2026-04-21 errata.build.resf.org
- Rocky Linux Security Advisory RLSA-2026:8863 vom 2026-04-23 errata.build.resf.org
- Red Hat Security Advisory RHSA-2026:12341 vom 2026-04-30 access.redhat.com
- Red Hat Security Advisory RHSA-2026:12338 vom 2026-04-30 access.redhat.com
- Red Hat Security Advisory RHSA-2026:12339 vom 2026-04-30 access.redhat.com
- Red Hat Security Advisory RHSA-2026:12340 vom 2026-04-30 access.redhat.com
- Ubuntu Security Notice USN-8259-1 vom 2026-05-07 ubuntu.com
CVE: CVE-2026-27622
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.